Natural Gas Consumption & Cost Calculator

Gas used = energy input ÷ heating value of the gas.

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Formula

ft³ = BTU/h × hours ÷ heating value (BTU/ft³)

Example calculation

80,000 BTU/h for 6 h at 1,030 BTU/ft³ → 466 ft³ (13.2 m³).

Practical HVAC use

Fuel cost estimates.

Common mistakes

Using a generic heating value — utilities publish their own.

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