1 Btu to Kilowatt-hours

1 Btu ≈ 0.00029307 kWh

Calculation: kWh = 1 Btu × 0.000293071 ≈ 0.00029307 kWh

Btu to Kilowatt-hour Converter

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How to Convert Btu to Kilowatt-hour

1 Btu = 0.000293071 kilowatt-hours

Kilowatt-hour = Btu × 0.000293071

Example: 1 Btu × 0.000293071 = 0.00029307 kWh

Reverse Conversion

To convert kilowatt-hours back to Btu:

  • Remember, 1 kilowatt-hour equals 3412.14 Btu.
  • To convert 0.00029307 kWh to Btu, multiply 0.00029307 x 3412.14, resulting in 1 Btu.

1 Btu is also equal to:

  • 1055.1 joule
  • 1.0551 kilojoule
  • 0.25216 calorie (nutritional)
  • 0.29307 watt hour
About these units

Btu: British thermal unit (IT) — legacy heat unit based on heating water.

Kilowatt hour: Energy equal to one kilowatt of power sustained for one hour.

Frequently Asked Questions

How much is 1 Btu in kilowatt-hours?

1 Btu equals 0.00029307 kilowatt-hours. This is calculated by multiplying 1 by the conversion factor 0.000293071.

What does 1 Btu look like in kilowatt-hours?

1 Btu (0.00029307 kilowatt-hours) is a small amount of heat — warming a spoonful of water.

How do you calculate 1 Btu to kilowatt-hours?

Multiply 1 by the conversion factor 0.000293071. The calculation is 1 × 0.000293071 = 0.00029307 kilowatt-hours. This factor is defined by international measurement standards.

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1 Btu = 0.000293071 kilowatt-hours
1 Btu = 0.000293071 kilowatt-hours — conversion chart

For general conversions between Btu and kilowatt-hours, see the Btu to kilowatt-hours converter.

Also convert Btu to:

Conversion factors verified against NIST, BIPM, ISO 80000-4 1 cal_IT = 4.1868 J by definition (BIPM/ITS-90). Last reviewed: April 2026
Adilson Fernandes By Adilson Fernandes
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.