Coil Resistance Explained: What Do Ohms Mean for Your Vape?
Every coil and pod has a resistance printed on it, like 0.8Ω or 1.2Ω. It looks like a technical detail, but it's one of the biggest things that decides how your vape feels, how much vapour you get and how long your battery lasts. Here's what the number actually means.
What resistance means
Resistance is measured in ohms (Ω). A lower number means less resistance, so more power flows through the coil. More power means more heat, which gives you warmer, bigger vapour. A higher number does the opposite: less power, a cooler vape and a tighter draw.
Low power use
Ideal for nic salts
Best with slightly lower strengths
How it changes the way a vape feels
Higher-resistance coils give a tighter draw, the one most people associate with small pod kits and MTL (mouth-to-lung) vaping. Lower-resistance coils give a more open draw and more vapour, which is where RDL (restricted direct-to-lung) and DTL (direct-to-lung) styles come in. Coils below 1Ω are often called sub-ohm.
What it does to your battery
A lower-resistance coil draws more power, so it drains the same battery faster than a higher-resistance one. That's why two kits with the same mAh rating can last very differently — our battery life guide goes through it. If battery life matters more to you than big clouds, go higher.
Matching resistance to your e-liquid
Resistance and e-liquid work as a pair. Nic salts are made for higher-resistance, low-power devices like pod kits, where a tighter draw suits them. Lower-resistance coils and tanks suit thicker, high-VG liquid such as shortfills, which flows through a bigger coil more easily. Our VG vs PG guide explains why the ratio matters, and our Nic Salts vs Shortfills guide covers the two main types.
Tight draw, nic salt, small pod kit → 0.8Ω or higher.
Warmer, bigger vapour → 0.4–0.6Ω, and expect to charge more often.
Not sure? Get in touch and we'll point you at the right one.
Choosing a replacement coil or pod
Always buy the resistance your device was designed for. It's printed on the coil or pod, and the product page lists the options. Fitting the wrong one can give a harsh or burnt taste — see our burnt taste guide and Coil Care & Maintenance guide. If you're choosing a kit for the first time, our guide to choosing your first pod kit covers battery size and pod style too.
Browse replacement pods and tank coils. Over 18s only.