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British thermal unit (IT) to Kilowatt-hour Converter

1 British thermal unit is about 0.0002930710702 kilowatt-hours. Convert British thermal units (BTU) to kilowatt-hours (kWh) below: type a value and the result updates as you type.

BTU to kWh calculator

Dot or comma decimals and scientific notation (1e-3) work.

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Result

British thermal unit (IT) to Kilowatt-hour conversion

1 BTU ≈ 0.0002930710702 kWhone British thermal unit in kilowatt-hours

1 kWh ≈ 3412.141633 BTUone kilowatt-hour in British thermal units

British thermal unit (IT) (BTU): International Table BTU: exactly 1055.05585262 joules.

Kilowatt-hour (kWh): Exactly 3 600 000 joules (3.6 megajoules).

Source:British thermal unit (IT): NIST Special Publication 811 (2008), Appendix B.8; Kilowatt-hour: SI Brochure, 9th edition (BIPM, 2019)

How to convert British thermal units to kilowatt-hours

To convert British thermal units to kilowatt-hours, multiply the number of British thermal units by about 0.0002930710702.

Formula

kWh = BTU × 0.0002930710702

The factor is rounded here. The calculator uses the exact value.

Examples

  • 5 BTU = 5 × 0.0002930710702 ≈ 0.001465355351 kWh
  • 25 BTU = 25 × 0.0002930710702 ≈ 0.007326776754 kWh
  • 100 BTU = 100 × 0.0002930710702 ≈ 0.02930710702 kWh

British thermal unit (IT) to Kilowatt-hour conversion table

British thermal unit (IT) to Kilowatt-hour
British thermal unit (IT) (BTU)Kilowatt-hour (kWh)
0.1 BTU0.00002930710702 kWh
0.5 BTU0.0001465355351 kWh
1 BTU0.0002930710702 kWh
2 BTU0.0005861421403 kWh
3 BTU0.0008792132105 kWh
5 BTU0.001465355351 kWh
10 BTU0.002930710702 kWh
20 BTU0.005861421403 kWh
25 BTU0.007326776754 kWh
50 BTU0.01465355351 kWh
100 BTU0.02930710702 kWh
250 BTU0.07326776754 kWh
500 BTU0.1465355351 kWh
1000 BTU0.2930710702 kWh

Values rounded to 10 significant digits where needed.

Frequently asked questions

How many kilowatt-hours are in one British thermal unit?
One British thermal unit is about 0.0002930710702 kilowatt-hours.
How do I convert kilowatt-hours to British thermal units?
To convert kilowatt-hours to British thermal units, multiply the number of kilowatt-hours by about 3412.141633. The formula is BTU = kWh × 3412.141633.
Is this conversion exact?
Yes. Both units have exact definitions, but the factor has more decimal places than can be shown, so displayed results are rounded. The calculator works with 50 significant digits before rounding.
Which is larger, a British thermal unit or a kilowatt-hour?
A kilowatt-hour is about 3412.141633 times larger than a British thermal unit. In other words, a British thermal unit is about 0.0002930710702 of a kilowatt-hour.