Kilowatt-hours to British Thermal Units Converter

One Kilowatt-hour equals 3412.141633 British Thermal Units (1 kWh = 3412.141633 BTU). Multiply a Kilowatt-hour value by 3412.141633 to get the equivalent in British Thermal Units. Use the calculator above for your value, or check the examples and reference table below.

Formula

BTU = kWh × 3412.141633

Multiply the Kilowatt-hour value by 3412.141633 to get the equivalent value in British Thermal Units.

Example Conversions

1 Kilowatt-hour (kWh)

3412.141633 British Thermal Unit (BTU)

5 Kilowatt-hour (kWh)

17060.70817 British Thermal Unit (BTU)

10 Kilowatt-hour (kWh)

34121.41633 British Thermal Unit (BTU)

25 Kilowatt-hour (kWh)

85303.54083 British Thermal Unit (BTU)

100 Kilowatt-hour (kWh)

341214.1633 British Thermal Unit (BTU)

Conversion Table

Common conversion values from Kilowatt-hour to British Thermal Unit
Kilowatt-hour (kWh)British Thermal Unit (BTU)
0.1341.2141633
0.51706.070817
13412.141633
26824.283266
517060.70817
1034121.41633
2585303.54083
50170607.0817
100341214.1633
250853035.4083
5001706070.817
10003412141.633

How to Convert Manually

Use these steps to convert Kilowatt-hour values to British Thermal Unit without the calculator.

  1. Write down the value in Kilowatt-hour (kWh) that you want to convert.
  2. Multiply that value by 3412.141633.
  3. For example, 10 Kilowatt-hours × 3412.141633 = 34121.41633 British Thermal Units.
  4. Label the result as British Thermal Unit (BTU).

Relative Size Comparison

1 Kilowatt-hour
1 kWh
1 British Thermal Unit0.0002930710702 Kilowatt-hours

This chart shows the visual difference in size between exactly one Kilowatt-hour and one British Thermal Unit.

About Kilowatt-hour and British Thermal Unit

The kilowatt-hour is exactly 3.6 megajoules. It is the unit on your electricity bill. Household consumption and electric vehicle battery sizes are stated in kilowatt-hours. The British thermal unit is about 1,055.06 joules, the heat to raise one pound of water by 1 °F. US heating and cooling equipment is rated in BTU per hour. One Kilowatt-hour equals 3412.141633 British Thermal Units (1 kWh = 3412.141633 BTU). Kilowatt-hour is used in electricity billing and in electric vehicle battery capacity. British Thermal Unit is used in air conditioner and furnace ratings in the US.

Precision and Rounding:Energy factors mix exact definitions (1 kWh = 3,600,000 J; 1 cal = 4.184 J thermochemical) with measured conventions (1 BTU ≈ 1,055.056 J). Nutrition and utility bills round to whole units; engineering heat calculations should keep the full factor until the final step.

Conversion factors per NIST Special Publication 811 and the BIPM SI Brochure (9th edition) (reference).

Worked Example

15Kilowatt-hours equals51182.1245British Thermal Units.

15 kWh × 3412.141633 = 51182.1245 BTU

FAQ

How do I convert Kilowatt-hour to British Thermal Unit?

Multiply the Kilowatt-hour value by 3412.141633 to get the equivalent value in British Thermal Units.

What is the formula for Kilowatt-hour to British Thermal Unit?

The formula is BTU = kWh × 3412.141633.

How many British Thermal Units are in 1 Kilowatt-hour?

1 Kilowatt-hour equals 3412.141633 British Thermal Units.

Can I convert British Thermal Unit back to Kilowatt-hour?

Yes. 1 British Thermal Unit equals 0.0002930710702 Kilowatt-hours, and the related converter can reverse the calculation.

What are common names for Kilowatt-hour and British Thermal Unit?

Kilowatt-hour is shown as kWh and may also be searched as kilowatt hour, kilowatt-hour, kwh. British Thermal Unit is shown as BTU and may also be searched as btu, british thermal unit.

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