## How do you calculate coil Watts?

Really, the most useful formulas for vapers, are the three that calculate current (I = V ÷ R) power (P = V x I) and resistance (R = V ÷ I). These will allow you to figure out the current your coil will draw and the wattage that will result. As you increase resistance, current and power will drop off.

## Is 0.15 ohm coil good?

Most coils will have the optimum wattage range written on them, we advise to stay within this range otherwise you’re at risk of burning the coils quickly. The lower resistance options (0.15 to 0.3 ohms) can generally go from anything ranging between 60 and 110 watts.

**How do you calculate wire length for a coil?**

To calculate spring wire length per coil, you must subtract the wire diameter from the outer diameter in order to get mean diameter. Once you have calculated mean diameter, multiply it by pi (3.14); this will give you the length of wire per coil.

### How many watts can a 0.2 ohm coil take?

0.2 ohm coils – 40 watts to 100 watts.

### What is the formula for length of the wire?

Maybe a more accurate value will be given by: wire length = n(circumference of single turn) + (n-1)p.

**What wattage should I vape at 0.4-ohm?**

23 – 28 watt

For example, a 0.4-ohm mod may recommend a 23 – 28 watt setting, and a 0.8-ohm mod may recommend you use up to 35 watts. Some recommendations can go much higher (e.g., 200 watts). Sub-ohm devices work best when using a high VG vape liquid (e.g., a VG/PG ratio of 70/30).

#### What is the best wattage for a 0.20 ohm coil?

40 watts to 100 watts

0.3 ohms – 40 watts to 90 watts. 0.2 ohm coils – 40 watts to 100 watts.

#### How do you calculate the weight of a coil?

Coil Weight Per Circle Diameter (inches) Gauge (inches) Weight = lbs Reset Maximum Coil OD ID (inches) Width (inches) Weight (lbs) OD = in PIW = lbs/in of width Reset Flat Sheet Weight Thickness (inches) Width (inches)

**Is there a coil wrap calculator for DIY coil building?**

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 buildingand coil wickingtutorials. We’ve also included a few frequently asked questions at the bottom of the page. Happy Building! Inputs Wire Type

## What is the difference between macro and micro coils?

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. What is a horizontal coil?

## How do I select the coil geometry and depth?

Coil Geometry: Select the geometry of your coil from the list. You can choose from single-layer solenoid, multi-layer solenoid and flat spiral coil forms Depth: Enter the winding depth, as depicted in the diagram.