Vape Coil Resistance Explained: A Complete UK Guide

Every vape coil has a resistance, printed on the side and measured in ohms (Ω). It's easy to overlook, but it's the single most important number for consistent flavour, the right amount of vapour, and a draw that actually suits how you used to smoke, or how you want to vape now.

Get it right, and your device matches how you actually want to vape, whether that's a tight, cigarette-like pull or a big, lung-filling cloud. Get it wrong, and you'll usually blame the coil, the e-liquid, or the device, when the real issue was a resistance mismatch all along.

So before you order your next pack of coils, here's exactly what resistance means, how it changes your vape, and which one to pick based on your situation.

What Coil Resistance Actually Means

Resistance measures how much a coil resists the electrical current from your battery, and it's what determines how your device turns e-liquid into vapour.

The lower the number, the more current flows through the coil, the hotter it gets, and the more vapour it produces. The higher the number, the less current flows, the cooler the coil runs, and the tighter, more restricted the draw feels.

Low resistance (generally below 0.8 ohm) means more heat and bigger clouds. This is sub-ohm territory, the basis of direct-to-lung (DTL) vaping.

High resistance (generally 0.8 ohm and above) means less heat and a tighter draw. This is the basis of mouth-to-lung (MTL) vaping, the style that feels closest to smoking a cigarette.

MTL, DTL and RDL — The Three Vaping Styles

Your coil's resistance is tied directly to which of the three main vaping styles you get. Here's how they differ:

Mouth-to-Lung (MTL)

Vapour is drawn into the mouth first, then inhaled into the lungs, exactly like smoking. Uses high resistance coils, typically 0.8 to 1.2 ohm. Works with nic salts and 50/50 e-liquid. This is the closest experience to a cigarette, and the recommended starting point for anyone switching from smoking.

Direct-to-Lung (DTL)

Vapour is inhaled straight into the lungs in one motion, like a deep breath. Uses low resistance coils, typically below 0.6 ohm. Works with high-VG (70% or above) e-liquid and lower nicotine strengths, usually 0mg to 6mg. DTL vaping generally uses more e-liquid so typically we recommend shortfill e-liquids which come in 50ml or 100ml sizes and leave space for you to add the nicotine your self using a nic shot. However there are also some options for high VG 10ml e-liquids if you don't want to mix in teh nicotine yourself. DTL vaping produces large clouds and is generally favoured by more experienced vapers.

Restricted Direct-to-Lung (RDL)

A middle ground between MTL and DTL. Uses medium resistance coils, typically 0.6 to 0.8 ohm. Works with 50/50 or medium-VG e-liquid. A common landing point for vapers who started MTL and want a bit more vapour and flavour without going fully into sub-ohm territory.

Which Resistance Should You Choose?

Still not sure where you fit? Match your situation below:

• Complete beginners: 0.8 to 1.2 ohm. The safest, most forgiving starting point for anyone new to vaping. Browse our starter kits to see what's available.
• Ex-smokers switching from cigarettes: 1.0 to 1.2 ohm, paired with 10 to 20mg nic salt e-liquid. This combination most closely replicates the draw and throat hit of a cigarette.
• Switching from disposable vapes to a refillable kit: Stay at 1.0 to 1.2 ohm. Disposables almost always used a high-resistance MTL coil, so matching that resistance in your new kit keeps the experience familiar. Compare options in our disposable alternatives range.
• Want more flavour without huge clouds: 0.6 to 0.8 ohm with 50/50 or medium-VG e-liquid at 3 to 10mg nicotine. The RDL middle ground.
• Experienced vapers chasing bigger clouds: Below 0.6 ohm with high-VG (70%+) e-liquid at 0mg to 6mg nicotine. Requires a device capable of higher wattage output.

Resistance and Wattage — What to Set Your Device To

Every coil has a manufacturer-recommended wattage range printed on the side. Using the correct wattage for your coil's resistance is essential to avoid a burnt taste or a weak, unsatisfying vape.

• 1.2 ohm coils: 10 to 16W. Suited to small pod kits and beginner MTL devices.
• 1.0 ohm coils: 12 to 18W. Standard MTL range for most pod kits and nic salt devices.
• 0.8 ohm coils: 12 to 20W. The upper end of MTL, sometimes labelled RDL on newer pod kits.
• 0.6 ohm coils: 20 to 35W. RDL territory, a step up in vapour and flavour.
• 0.2 ohm coils: 45 to 70W. Sub-ohm, DTL, large clouds, requires a higher-wattage mod.
• 0.15 ohm coils: 60 to 90W. The lowest common resistance, maximum cloud production, advanced sub-ohm devices only.

Always start at the lower end of your coil's recommended wattage range and increase gradually if you want more vapour. Starting too high is one of the most common causes of a burnt coil on day one.

Resistance and Nicotine Strength — Getting the Pairing Right

Resistance and nicotine strength need to match, or the experience will feel wrong even with a perfectly good coil and a perfectly good e-liquid. See our full guide on what nicotine strength to vape for more detail.

High resistance MTL coils pair with nic salts at 10mg or 20mg. The cooler, restricted draw makes higher nicotine strengths feel smooth rather than harsh, which is exactly what an ex-smoker needs in the first weeks of switching.

Low resistance DTL coils pair with low nicotine, typically 0mg to 6mg, in high-VG e-liquid. The much larger vapour volume per puff means the same nicotine strength that feels smooth in an MTL pod would feel overwhelming and harsh through a sub-ohm coil.

Getting this pairing backwards, for example using 20mg nic salt in a sub-ohm coil, is one of the most common reasons new vapers report a harsh, unpleasant experience that has nothing to do with the coil or device being faulty.

Why a Burnt Taste Often Comes Back to Resistance

A burnt taste is frequently blamed on a faulty coil when the real issue is a resistance and e-liquid mismatch. If a high-VG, thick e-liquid is used in a high-resistance MTL coil, the cotton can't wick the liquid fast enough to keep up with the heat, and it scorches. If a thin 50/50 e-liquid is used in a low-resistance sub-ohm coil, it can flood and spit rather than burn, but the underlying cause is the same mismatch.

If you're getting a burnt taste, check three things in order: the resistance printed on your coil, the wattage your device is set to, and the VG/PG ratio of the e-liquid you're using. It's also worth checking you primed the coil correctly before first use. See our full guide on why your vape might taste burnt for the complete troubleshooting steps.

Mesh vs Wire Coils

Most modern coils use mesh rather than traditional coiled wire. A mesh coil is a flat sheet of perforated metal offering a larger, more even heating surface. This produces more consistent flavour and tends to last slightly longer before residue buildup affects performance, regardless of the resistance rating. The resistance principles above apply equally to both mesh and wire coil construction.

Quick Reference Table

Use this as a quick lookup next time you're choosing a coil:

Not sure which coil fits your kit? Browse our full range of replacement coils, filtered by brand and resistance.

Frequently Asked Questions