Coil wrap calculator

Coil Wrap Calculator

Welcome to Vaping Hardware’s Coil Wrap Calculator!

Experimenting with a double, triple or quad coil build? Itching to try a parallel, twisted or even flat ribbon coil? Whatever build you’re after, our Coil Wrap Calculator has you covered!

If you’re completely new to the world of DIY coil building then you might want to take a look at our coil building and coil wicking tutorials.

We’ve also included a few frequently asked questions at the bottom of the page.

Happy Building!


Inputs

Wire Type
Wire Profile
Build Deck Configuration
AWG ()
Inner Coil Diameter   mm ()
Target Resistance   Ω
Tail Lead Length (total)   mm
 

Results

Number of Wraps
Rounded to Full Wraps
Rounded to Half Wraps
Wire Length
Resistance of Each Coil
Resistance of Build Deck
Surface Area of Coil
Current Drain from Battery
Vaping Power @ 4.2V

FAQs

A typical coil build resistance usually ranges from around 0.1ohms to 2.5ohms.

However, this is always dependent on the mod and/or tank you’re using. It’s important you stick within the safe range your device can handle!

Personally, we think a great starting range would be something like 0.5ohms to 1ohm. Anything on that scale should give you great flavor and vapor! As long as you know how to wick properly of course…

Although you don’t actually NEED that much to build a coil, there are literally dozens of tools, supplies and gadgets we could list here!

In terms of the basics, you’ll need a length of resistance wire, a screwdriver ( or drill bit!) and a pair of cutters. Quick tip though; a good pair of clean nail clippers work just as well!

Needle nose pliers (or tweezers in a pinch) are also important to shape your coil after you’ve installed it.

Finally, you might also need a metre to test your Ohms, although most mods will tell you the coil resistance.

To make life easier, there are plenty of coil building kits available with everything you could need and then some! We really recommend this one here from Amazon, it’s a great kit at a really decent price.

This depends completely on what type of coil you’re building, your target resistance and even how much flavor you want from your coil.

We’d usually suggest sticking to around 6 wraps as this will give you a good cross sectional surface area with decent flavor.

Ultimately it’s down to personal preference, just experiment to see what works best for you.

The macro coil is any type of coil with an inner diameter larger than 2mm.

This micro coil is any type of coil with an inner diameter of less than 2mm.

Both Macro and Micro are forms of ‘contact’ coils, which basically mean they’re tightly wrapped, with each coil wrap touching those on either side of it.

As opposed to a ‘spaced’ coil which is exactly what it sounds like; the vape coil wraps are spaced evenly with a slight gap between each.

As the name suggests, this is simply a coil placed flat on your build deck, running between the deck posts.

Some people now consider this ‘old hat’ as the popularity of vertical coils has increased.

However, this method was the standard back in the early days of DIY vape coil building and is a design we still use to this day.

Personally, we prefer this method as we notice less ‘spitback’ from these when compared with vertical coils.

Choosing between vertical and horizontal coils will often depend on your atomiser, the position and shape of your air holes and the layout of the build deck.

The norm for stock coils, this is basically a standing coil situated in the centre of your build deck reaching toward the top of your atomiser.

The vertical coil can be wicked on either the inside or outside, which is more commonly known as a ‘chimney’ coil.

These coils have gained popularity, due to the improved airflow and flavor as more of the coil surface area is in contact with the wick.

A half wrap refers to the coil legs pointing in the same direction.

A full wrap refers to the coil legs pointing in opposite directions.

As with any coil you build, it’s always vital that you test it before you fire it.

Use an Ohm reader to make sure that the resistance is roughly where you want it. This should help prevent any nasty surprises or a ‘short’ when you fire the mod for the first time.

This is never more important than when using an unregulated mod (Mechanical), a direct short to ground/earth could be dangerous.

We don’t have an option for making Clapton coils just yet but this is coming soon! In the meantime, we do have a ‘workaround’ that will work just as well…

The outer wrap of a Clapton is fairly insignificant with respect to the core wrap in terms of resistance. By inputting just the core wire profile and AWG you’ll be getting a roughly similar result.

Likewise, for an Alien Clapton which has two cores and an outer wrap, input the two core wire profiles and AWG by selecting ‘Round Parallel 2 Strand’. Although not exact, this will give you the approximate info you need!

Yes, our calculator will work out the required wraps for any type of wire. Simply select ‘Custom’ and the menu will change allowing you to input the wire diameter and resistance per meter of your specific wire type. This information can often be found on the wire wheel or manufacturer’s specifications.

This is the power your mod will produce based on the coil you’ve built. However, it’s really only useful when using an unregulated mod (mechanical) on a fully charged battery (4.2V). If you’re using a regulated mod you can select whatever power you want via the wattage settings on your device.

Kanthal A1 and Nichrome N80 are the two types of wire used for Variable Wattage mode only. Stainless Steel (316) can be used in either Variable Wattage or Temperature Control (TC) mode.

Nickel NI200 and Titanium wire can both be used in Temperature Control mode. Stainless Steel (316) can be used in either Temperature Control or Variable Wattage mode.

This is the current being drained from your battery based on the coil you’ve built.  However, it’s really only useful when you’re using an unregulated mod (mechanical) on a fully charged battery (4.2V). If you’re using a regulated mod you can check the correct battery current drain using our Battery Amp Draw/Drain Calculator.

Basically this is just the size of the ‘inside’ of your coil.  To wrap a coil, you’ll need either a drill bit, a screwdriver or (ideally!) a coil jig to wrap the wire around. The size of whatever you use dictates the inner coil diameter.

When you wind your coil, this is the ‘clipped’ length of the open straight ends of the coil that are inserted into the deck posts of your tank. They should be kept to a minimum. The tail lead length is the total length of the two ends.

Target resistance is the resistance you want your coil/deck to be. Build deck configuration is how many coils you want to place into the deck. If your building for a single deck/coil then select single and specify what you want your resistance to be. If you’re building a dual coil/deck configuration, then select dual and specify the overall deck resistance. The resistance of each coil will be twice that of the deck resistance. i.e. 2 x 3ohm coils will be 1.5ohm deck resistance.

AWG stands for American Wire Gauge. It is the standard measurement for the thickness of the wire. SWG is the UK equivalent but is not used. AWG is printed on all spools of wire.


Hopefully by now you’ve built yourself an awesome coil or two! If you’ve had any problems with the Coil Wrap Calculator, please see the user guide here.

If you’ve got any questions or feedback then please feel free to drop us a comment at the bottom of the page. We’re really grateful for all the positive feedback we’ve had so far, thank you!

If you’d like to share this calculator then please hit one of the share buttons below.

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Comments 57

  1. Hi! I’m new on diy coils and a really dumb one. I just discovered this twisted kanthal wires. I used a 24AWG kanthal wire and hand-made it (watched a video on youtube on how to do it). I used a 7/6 wraps (per coil, btw it’s a dual coil deck). The resistance, 0.21, showed too low for my battery with 20A maximum current with my variable Smok T-Priv and an atomizer of Geekvape Avocado 24mm.

    My question is, how can i make my coil become at least 0.4-0.5 in resistance? How many wraps? I used your calculator (btw, it’s soo cool!) and it showed that i should make a 19/18 rounded half wrap? What does this mean? Does this mean that I should wrap my coils 19/18 on both or it’s the total for both coils? Any suggestions? Sorry for too many questions. lol. Thank you very much!

    1. Post
      Author

      Hi Mica,

      Thanks for the comment and really happy to hear you like the calculator! Hopefully the info below answers all your questions…

      1) Using twisted kanthal on a dual build deck to achieve an overall deck resistance of 0.4 or 0.5ohm will mean too many wraps for your build deck. Ideally you want around 6 wraps per coil to be able to fit in between the deck posts. The 19/18 rounded half wraps that shows on our calculator means you’d need to wrap both your coils this amount of times.
      2) Rounded half wraps means the coil legs point in the same direction. Full wraps means the coil legs are pointing in the opposite direction. This depends on the layout of your build deck and how the coils fit in to the posts.
      3) When you select ‘Build Deck Configuration’ to ‘Dual’ the results will show you need to build 2 coils, each at twice the resistance of the overall deck resistance. The resistance of each individual coil is shown in brackets to the right of the number of wraps.
      4) Your Smok T Priv is a regulated dual battery mod so the coil resistance is not important, it’s the wattage you vape at that determines the current being drawn from your batteries. If your using 20A batteries, you cannot vape any higher than 110W before you’re in danger of overloading your batteries (see our Battery Amp Drain Calculator). The Smok T-Priv will work with any coil setup above 0.06ohms.
      5) If you’re referring to the ‘Current Drain from Battery’ in our results section being higher than your 20A max current batteries, that only refers to the current being drawn if you’re using an unregulated mod. Your twisted kanthal of 24AWG at 6/7 wraps on a dual build deck gives you an overall resistance of 0.21ohm, meaning each coil is around 0.42ohms. This will be fine as long as you don’t vape higher than 110W using your 20A batteries.

  2. Hi there, thank you so much for a great calculator. I am completely new to coil building and was able to build my first dual coils and I think they turned out alright. I am using the Dovpo-Blotto RTA on my Vaporesso Gen and have a few questions. I recently purchased Geekvape Twisted 26AWGx2 Kanthal A1 wire to experiment my builds with. I usually aim for anywhere between 0.19-0.25 ohms on my vape, however, I am not sure exactly what the tail lead length (total) will be. I use a coil cutting tool and cut each leg to +/- 4.5-5mm. Another question is regarding the wraps. I usually use 3mm diameter coils and it works out to “Rounded to Half Wraps = 6/5”. What exactly does this mean? Would I need 6 wraps or 5 in total?

    I usually use pre-built coils and use Nano-Aliens +/-0.19 Ohms dual. But am experimenting on my own builds.

    1. Post
      Author

      Hi Richard,

      Thank you for the great feedback, really glad you like the calculator. It’s a nice setup you’re using too, both the mod and tank are great choices! The total tail lead length will be the sum of the two legs, so if you’re cutting each leg using a coil tool to 4.5-5mm, the total lead length will be 9-10mm.

      The difference between full and half wraps depends on the way the coil(s) are fitted into the build deck. A half wrap refers to the coil legs pointing in the same direction whereas a full wrap means the coil legs point in opposite directions. In your case, the ‘6/5’ relates to 5 wraps counted on one side and 6 on the other.

      Hope that helps Richard. Good luck with coil building. We alternate between pre-built coils and wrapping our own. If we’re feeling in the mood, we usually wrap a few coils in one sitting so we’ve got a couple to hand. Anymore questions feel free to give us a shout!

  3. I’m a bit dumb, when I look at the results after calculating its specifies 158.30 wraps, I know they don’t mean 158 times to wrap. Does that mean mm of length…lmk please

    1. Post
      Author

      Hi Frankie,

      Thanks for the comment. After you hit the result button on our coil wrap calculator the first line of the results will tell you the number of times you need to wrap your coil to achieve your desired build. If your result showed 158.30 wraps then unfortunately you’re trying to build a coil that’s impossible to fit in a vape tank.

      The average number of wraps on a vape coil is anywhere from 6-10 wraps for a good result. If you can get back in touch with us and tell us what wire type you’re using and the desired resistance of the coil you wish to build then we can give you a little more guidance. Hope to hear from you soon 🙂

  4. Hi, the calculator is great, thanks. I’ve just built my first coil using 28awg and 2.5mm diameter with A1 Kanthal , I was aiming for about 1.2 ohm and got 1.15 so I was happy enough with that for a first go. My question…. is there any advantage / disadvantage (Flavour etc) building a coil with 3mm diameter and 1 less wrap again aiming for about 1.2 ohm ? I’m using the single coil rba on the Aegis Boost at 13 watts. Thanks

    1. Post
      Author

      Hi Russell,

      Thanks for the comment and we’re really glad you like the calculator. Your question is a good one and the answer is a little open-ended. It really is down to individual preference, how you vape and what size coil will fit into your RBA deck.

      The smaller diameter will obviously result in a thinner wick meaning less absorption of e-juice. The surface area of both coils will be approx. the same and so will the ramp up speed (time it takes your coil to fully heat). Different wicking techniques also play a part in flavor production. My best advice would be to try it and see if you find any noticeable difference. Hope this helps and please let us know what you find.

      1. Thanks Richard, well as you say the only obvious thing is more wick, other than that I can’t say I noticed any other difference. However I shall continue to build 3mm coils as the extra wick holding more juice seems to last longer. Many thanks again. Russell.

  5. What’s the current battery drain? I’m using Samsung 18650 green battery on a mech mod and have a .11ohm dual parallel build just wanna make sure I’m not drawing too much power. It says on your website My current battery drain is 38a. What’s my battery ratted for? Am I safe?

    1. Post
      Author

      Hi Pierce, DO NOT fire the mod. Your set-up is NOT SAFE. Your coil build (deck resistance) at 0.11ohms is too low. You’re drawing 38Amps from a Samsung 25R 18650 battery which is rated at 25Amps. Your vaping power at this build will be approx. 160Watts.
      That battery is not designed to draw that much current. There isn’t a battery on the market capable of supplying that amount of current at present. You need to increase the coil resistance to 0.18ohms or higher so not to draw above 25Amps from the battery. Use our power, resistance and current calculator to check what build is safe for the CDR rating of any battery. Hope that helps

    1. Post
      Author

      Hi Tony, this is usually caused by one of three problems… Either your coils are slightly different resistance, you’ve got heat spots or your coil leads aren’t fixed into your deck posts properly. Heat spots are a simple fix. Just dry burn the coil and gently ‘rake’ a mini screwdriver or coil jig over the coil while it’s glowing. If you’re sure both coils are of equal resistance, make sure your coil leads are of equal length and attached securely. Hope this helps

  6. Hi. Thanks for the calc, it’s incredibly helpful.
    Is there a limit to the number of wraps we should use?
    E.g. I’m vaping with 14 wraps on 30gauge ni80, single coil. I want one battery to run all day, so the power required is low, resistance is 2.23.
    However, I saw on a YouTube video about building, that we should aim for 8-10wraps, no more. Why?
    The more wraps I have, greater surface area burning, greater Flavour.
    Basically, is there a limit on wraps?

    1. Post
      Author

      Hi Tony, glad you found the calculator helpful! In terms of the number of coil wraps, we usually recommend somewhere in the ball park of 6-8. This is also ideal for most build deck sizes! There’s no reason you can’t build with more coil wraps than this, however more wraps doesn’t necessarily guarantee better flavour. Above all, it’s best to just use whatever you find works best for you. Just keep in mind, above 10 wraps you start to experience potential slower ramp up speed (longer time to heat your coil) which obviously will drain your battery faster. Hope this helps

      1. not trying to hijack this so first off thanks. .This was my exact question because I started with Clapton nichrome and found for me 4 wraps single build with that taste best.. However they didnt have any more fused clapton wire so I got the 22G Ka A-1 and tried dual and found this calculator to be very accurate. I am still learning what I like with the Kanthal wire but if my build is 0.23 on the dual and the single was 0.34 which would technically use less power on the battery? I wanna use abit less juice as I am averaging 100ML in 2 days ooF

        1. Post
          Author

          Thanks Simba, really glad you like the calculator! In reply to your question there are two possible scenarios:

          1) If you’re using an unregulated mod (mechanical mod) a 0.23ohm coil will draw 18.26A and a 0.34ohm coil will draw 12.35A. The 0.34ohm coil will therefore draw less power from your battery. Our ‘Power, Resistance and Current Calculator‘ lets you quickly work out the drain on your battery when using a mechanical mod.

          2) Alternatively, if you’re using a regulated mod the resistance of your coil doesn’t affect the drain on your battery. Instead, the wattage you choose to vape affects how much power you draw from your battery. Obviously the higher the wattage you vape at, the higher the draw on your battery will be. In this case you can use our ‘Battery Amp Draw Calculator‘ to check the current drain on your battery when using a regulated mod.

          Hope this information helps Simba and any more questions feel free to get in touch! 100ml is a LOT of juice!! Maybe you could try reducing the wattage you vape at or increasing your coil resistance….vape juice isn’t too cheap these days, especially if you don’t mix your own e-juice. Happy vaping Simba 🙂

  7. hi richard ,
    thanks for providing the calculator , they work fine.
    i am completely new to building coil.
    could you shed the light on how to count wraps?
    sometimes i got the same resistance with bit different wraps
    i’m using ni80 24 awg
    thx

    1. Post
      Author

      Hi Ronald,

      Thanks for your comment and glad you found the calculator useful! If you’ve not already done so then take a look at our calculator guide and coil building guide. These will really help you understand the process of building a coil and using our calculator.

      Once you calculate how many wraps you need, it’s a simple process of tightly wrapping the wire around your drill bit or coil jig. One complete turn is one wrap. Also make sure your wire is not overlapping when you wrap your coil. The resistance is determined by the number of wraps, the diameter of the wire and circumference of the wrap. The resistance will only change if any of these parameters change. Hope this helps Ronald, any problems feel free to let us know.

    1. Post
      Author

      Hi Ken, thanks for the comments. If you’re building with Kanthal A1 32AWG and you want a target resistance of 1.4ohms, you’ll want a 2mm inner coil diameter and a total of 3 full wraps. This obviously won’t give you a coil with much surface area, which will impact flavor and vapor production… Our advice would be to perhaps switch to 30AWG in which case you’d need 6 full wraps to hit 1.4ohms. Hope this helps! Any problems, give us a shout!

  8. Hi Richard, great calculator and posts! I am completely new to building having just moved up from a Smok RPM40. I purchased a Cube w/ Engine MTL tank. I understand that Kanthal A1 with 4 coils would produce around 1.2ohms? as the cube is variable wattage can I safely use on the 1-80w range?
    thanks bud

    1. Post
      Author

      Hi Ben,

      Thanks for great feedback and glad you like the calculator. Congrats on getting the OBS Cube with the MTL Engine Tank, that’s a great little set-up! As for whether you can use the Mod safely, the internal battery will work on the max wattage it’s been designed for so you’re good to go.

      Four turns of Kanthal A1 will produce a 1.2 ohm coil using 30AWG wire. As we always suggest, start off on a low wattage (15W) and adjust upwards until you find your sweet spot! With a 1.2 ohm coil you’ll probably be looking at around 15W – 25W for a satisfying vape but it really depends on personal preference. If you’d like any tips on building your coils then check out our guide on coil building. The way you wick your coil can also have a massive effect on the end result. Be sure to have a read through our wicking guide too.

      Hope this helps Ben, happy building and vaping!

      1. hi Richard, thanks for the reply! I get bored rather quickly and have just ordered a Zeus and OFRF Gear (after watching loads of reviews!!) could you tell me if the cube will take 7a drain safely (2 x 1.2ohm coils)?? just checking before I blow my face off!!!!!!
        cheers bud

        1. Post
          Author

          Hi Ben,

          No worries. The cube is designed to work with a minimum 0.1ohm resistance. Your combined resistance is 0.6ohms so no problem there. The internal battery will easily cope with 7A drain. I’m guessing from the spec of the mod it’ll take in the region of 25A safely. Vaping in the region of 15W – 50W shouldn’t be an issue…your face should be fine 🙂

          Also on a regulated mod remember the coil resistance doesn’t determine the current drain, it’s the wattage and voltage. Hope this helps Ben! Happy vaping!

    1. Post
      Author

      Hi Imran,

      Thanks for the question. Unfortunately our calculator doesn’t currently allow for exact calculations on a Clapton wire type, but we will be adding this in the very near future. To give you a very close result you can just select ‘dual strand’ and input the 28 AWG inner core wires. The thinner wire wrapping around the core wires only changes the number of wraps needed by a fractional amount. Hope this helps Imran.

  9. This is by far the best, most simple and accurate coil calc I’ve had the pleasure using! Spot on calculations! I can now trust this wholeheartedly and stop doing long hand calc. A huuuge thumbs up and I hope to see an app in the apple app store soon! Thanks again and great work!

    1. Post
      Author
  10. Thanks for the calculators, they work fine. How come with Steam Engine the outcome for a 26 AWG Kanthal, dual coil aiming for 0,5 Ohm, 3 mm diameter I get 45 Watts for mod-settings and with Coil Wrap Calculator the same build gives 35.28 Watts?

    Excuse me foor my poor English.

    1. Post
      Author

      Hi Jan,

      Thanks for the comment and glad you like the calculator. My understanding of Steam Engine’s recommended wattage of 45 is a suggested wattage to set your regulated mod to with the coil build you’ve input.

      On the other hand our 35.28 Watts figure refers to the wattage you would be vaping at, using a fully charged battery at 4.2V, on an unregulated mod (mechanical mod). This figured is derived from Ohms Law. Ultimately though you can experiment with the wattage you’re using on a regulated mod and see what works best for you. Just be careful not to go too high! Hope this helps Jan.

    1. Post
      Author

      Hi Mike,

      Thanks for the message. Currently our calculator doesn’t include a Clapton option but I am in the process of developing the calculator to include Flat, Ribbon and Clapton coil builds and we’ll be updating this soon.

  11. Hello Richard, thanks a lot for providing the calculator. What I am trying to figure out – same on/with Steam Engine’s calculator – is how to deal with Clapton Wire in these calculators?
    For example: N80, 24ga + 36ga. Am I supposed to use “2 strands” then and what’s about ga?
    I am usually getting 0,22 to 0,25 Ohm with 6 to 7 wraps in a dual build deck, 3 mm inner coil and with legs cut off between 4,5 and 5 using Geek Vape’s N80, 24ga + 36ga.

    Thank you in in advance,
    Max

    1. Post
      Author

      Hi Max,

      At the moment our calculator doesn’t include Clapton calculations but we will be adding this in the near future.

      To give you an approximate answer of wraps needed when using Clapton wire, input the gauge of the inner or core wire and ignore the gauge of the thinner wire wrapping around the core. The wrap gauge is pretty insignificant compared to the core gauge and only changes the number of wraps required by a very fractional amount. This method will give you a very fairly close result. And for this you’ll just need to select ‘single strand’. Hope this helps Max. Any problems feel free to get in touch.

  12. the best coil calculator so far, do u have any android or ios based app for this? I’ll definitely install it.
    big thanks

    1. Post
      Author

      Hi Darwin, thanks for the feedback, we really appreciate it 🙂 We’re actually hoping to have a coil wrap calculator app ready for release in the near future!

  13. Hi sir, im using minifit.
    I tried to recoil using kanthal A1 32 awg. When vaping it was very thight seems like blocked airflow. What is the problem? They suggested 32 nichrome80. If i used 30 awg instead, is it gonna give more flavor and vapor؟

    1. Post
      Author

      Hi Abdul,

      Thanks for the comment 🙂 I haven’t personally built on a minifit device before but the problem you’re describing sounds like a wicking issue. The airflow can sometimes be restricted by wick sitting over the air holes. Perhaps try readjusting the wick in your coil, making sure the air holes aren’t being blocked.

      If you choose to use 30 awg wire with the same number of wraps, the surface area of your coil will increase and provide slightly more vapor. However, this won’t necessarily fix the problem you’ve described. Hope this helps, please let us know how you get on!

  14. When I’m making a parallel coil, is the number of wraps the number of times I wrap the coil jig? Or do I half it because of the two wires?

    1. Post
      Author

      Hi Nichole, thanks for the comment 🙂 You don’t need to half the number of wraps. As long as you’ve selected ‘Round (Parallel 2 Strand)’ our Coil Wrap Calculator will automatically calculate how many times you need to wrap your wire around the coil jig. Great choice of coil build, I love the parallel coil build myself! If you’re interested in advanced coil builds, please take a look at our post; Coil Building Tips & Tricks – How to Build a Vape Coil in 6 Easy Steps!

      Hope this helps! Any problems, feel free to drop me a reply!

  15. Please help me If i am using a regular ni80 32 ga wire, how many wraps over which diameter to give me same hit like mini fit ready made one??

    1. Post
      Author

      Hi Ahmed, thanks for your comment 🙂 I’ve not tried the Mini Fit personally but I’ve tried a few other Vape Pod devices and I find they all differ slightly in performance. If you’ve now moved on to building your own vape coils on an RDA or RBA, the best advice I can give is to experiment with a few different coil builds to find out what works best for you.

      Perhaps a good starting point would be 5 wraps of Ni80 32g with an inner coil diameter of 2mm. This will give you a 1.4ohm vape coil which I think should roughly mimic the vape experience on a Vape Pod device. Again, have a play around with your coil diameter, target resistance and vape wire gauge to see what suits you best!

      Hope that helps, please let us know how you get on!

  16. I’m going for a 0.3 ohm coil using 28G Kanthal A1. It’s telling me I need 1 and a bit wraps, surely that can’t be right. Any advice.

    1. Post
      Author

      Hi Kyle, if you’re building a 0.3 ohm single coil you’re going to struggle using Kanthal 28G for the very reason you’ve mentioned (too few wraps). My advice would be to either increase the wire gauge or use a different wire type (Titanium, Stainless Steel etc), thereby increasing the number of wraps required to reach your target resistance. I would also suggest playing around with different deck configurations, perhaps a dual coil setup… Good luck and happy building! 🙂

    1. Post
      Author

      Hi Alan, thanks for the feedback! You’ll be pleased to hear we’ll be including flat ribbon wire in a future update to the coil wrap calculator 🙂

    1. Post
      Author
  17. This is the first time that I’ve used your site for building and find it much easier to use than most that I’ve tried. Great job.

    1. Post
      Author

      Hi Thomas,

      Thanks for the great feedback!! We’re really happy you like the calculator and it’s always nice to hear it’s easy to use. We’d really appreciate it if you share the page with friends and family too! Have a great day!

    1. Post
      Author

      Hi there,

      Thanks for your comment and I hope the following helps. I think you’re getting slightly confused here between voltage and wattage. The ‘4.2v’ refers to the voltage of a fully charged 18650 vape battery; as you use the battery the voltage (capacity) drops until you need to charge it again. On the other hand, wattage refers to the power that you want to vape at. In a regulated mod you can adjust the wattage to your particular needs and vape away.

      On an unregulated mod (mechanical mod) you can work out the wattage you’ll be vaping at with our ‘Ohm’s Law Calculator’. Simply put in the 4.2v figure to represent your fully charged battery and then put in the resistance of your coil(s). Hit the calculate button and the calculator will show you what power (wattage) you’ll be vaping at with a fully charged battery.

      Hope this helps 🙂 Let us know if you have any problems.

  18. i do not understand what the tail lead length is. Im going for a 0.18-0.2 ohm dual parallel build. Kanthal A1 wire, but the tail lead length is always put on 5 in your website, is it the normal?

    1. Post
      Author

      Hi Kal,

      Thanks for the comment! The tail lead length simply refers to the ‘legs’ of the coil I.e the wire showing either side of your wrapped coil that connects the coil to your build deck. The default is set to 5mm total (2.5mm per leg). We usually find this number leaves you with enough of a leg to easily fit the coil into the deck post, however you can alter this number to suit your needs.

      Hope this helps Kal! Any further questions please feel free to get in touch!

    1. Post
      Author

      Hi Jimmy, not sure exactly what you’re asking. The vaping power is derived from the coil build resistance and assumed full battery charge of 4.2V (as per ohm’s law) Hope this helps!

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