Heating

Gas vs Electric Heating Calculator

Which is cheaper to heat your home — gas or electric? This calculator compares the annual cost of both for the same amount of heat.

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Results

Gas heating — yearly cost

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Electric heating — yearly cost

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Gas saving vs electric

Positive = gas is cheaper by this much per year. Negative = electric is cheaper.

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Last updated June 30, 2026. Results update automatically as you type.

How it works

Gas cost = heat demand ÷ (gas efficiency ÷ 100) × gas price. Electric cost = heat demand ÷ (electric efficiency ÷ 100) × electricity price. Difference = electric cost − gas cost. Note: a heat pump changes this entirely — it delivers 3×+ heat per unit of electricity, so compare it separately with our heat pump calculator.

Frequently asked questions

Is gas always cheaper than electric heating?

Against electric resistance heating, gas is usually cheaper per unit of heat. But a heat pump can beat gas because it produces several units of heat per unit of electricity.

How do I find my gas price per kWh?

Many bills show it directly, or convert from your per-therm/per-unit rate. 1 therm ≈ 29.3 kWh.

What about a heat pump?

Set up the comparison differently — a heat pump’s effective efficiency is 300%+ (COP of 3). Use our dedicated heat pump savings calculator for that.

These calculators provide general estimates for educational purposes only and are not financial advice. Real-world results depend on factors not captured here. Verify figures independently before making any purchase or financial decision.