Natural Gas ft3 to kWh (cubic feet to kilowatt-hour) online

Convert natural-gas volume in ft³ to energy in kWh using the calorific value. 100 ft³ at CV 0.30 ≈ 30 kWh; typical US CV is 0.29–0.31 kWh/ft³.

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— kWh—
ft³kWh (CV 0.29)kWh (CV 0.30)kWh (CV 0.31)
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How to convert ft³ of gas to kWh

kWh = ft³ × calorific value (kWh/ft³). The CV depends on gas composition — check your supplier’s value.

Common mistake

Using the metric m³ factor (8–12 kWh/m³) on ft³. 1 ft³ = 0.0283 m³, so the kWh/ft³ factor is ~30× smaller.

kWh → m³ · m³ → kWh