BTU to kWh Converter

Convert BTU to kilowatt-hours and back — the energy-to-bill-unit conversion, distinct from the BTU/h power rating.

Convert BTU ⇄ kWh

29.3071 kWh
100000 BTU = 29.3071 kWh

Formula: 100000 BTU (BTU ÷ 3,412.14) = 29.3071 kWh

How the btu to kwh conversion works

The conversion is exact: kilowatt-hours = BTU ÷ 3,412.14. One kilowatt-hour is the energy of one kilowatt running for one hour, and one kilowatt is 3,412.14 BTU/h, so 1 kWh = 3,412.14 BTU. Going the other way, BTU = kWh × 3,412.14.

Energy, not power: this page converts an amount of energy (BTU) into another amount of energy (kWh) — the unit on electricity bills. It is different from BTU to kW, which converts a power rate (BTU/h) into kilowatts. Confusing the two is the most common BTU mistake: a 12,000 BTU/h air conditioner running for one hour uses 12,000 BTU of energy, which is 3.52 kWh.

Worked example: 100,000 BTU — one therm of gas — is 100,000 ÷ 3,412.14 = 29.31 kWh. And 10 kWh of electricity is 10 × 3,412.14 = 34,121 BTU. Gas-bill readers should also see therms to kWh.

Handy benchmarks: 1,000 BTU = 0.29 kWh, 10,000 BTU = 2.93 kWh, 34,121 BTU = 10 kWh and 100,000 BTU = 29.31 kWh.

btu to kwh converter questions

How many BTU are in 1 kWh?
Exactly 3,412.14 BTU. A kilowatt-hour is one kilowatt for one hour, and one kilowatt equals 3,412.14 BTU/h.
How do I convert BTU to kWh?
Divide by 3,412.14: kWh = BTU ÷ 3,412.14. So 100,000 BTU is 100,000 ÷ 3,412.14 = 29.31 kWh.
What is the difference between BTU to kW and BTU to kWh?
BTU to kW converts a power rate (BTU per hour) into kilowatts. BTU to kWh converts an energy amount (total BTU) into kilowatt-hours. The number 3,412.14 appears in both because 1 kW = 3,412.14 BTU/h and 1 kWh = 3,412.14 BTU — but the inputs mean different things.
How many kWh is 100,000 BTU?
29.31 kWh. 100,000 BTU is also exactly one therm of natural gas — see our therms to kWh converter.
How do I convert kWh back to BTU?
Multiply by 3,412.14: BTU = kWh × 3,412.14. Switch the direction above to do it.

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Sources & official guidance

Exact energy conversion — 1 kWh = 3,412.14 BTU. See our disclaimer.