BTUs to Kilowatt-hours Converter
Enter the energy in btus below to convert it to kilowatt-hours.
Convert BTUs to Kilowatt-hours
Enter a value in btus (BTU) to convert to kilowatt-hours (kWh).
British Thermal Unit to Kilowatt-hour Conversion Table
Table showing various british thermal unit measurements converted to kilowatt-hours. Click any preset value or arrow to load it into the converter.
| BTUs (BTU) | Kilowatt-hours (kWh) |
|---|---|
| 1 BTU | 0.000293071 kWh |
| 2 BTU | 0.000586142 kWh |
| 5 BTU | 0.0014654 kWh |
| 10 BTU | 0.0029307 kWh |
| 15 BTU | 0.0043961 kWh |
| 20 BTU | 0.0058614 kWh |
| 25 BTU | 0.0073268 kWh |
| 30 BTU | 0.0087921 kWh |
| 50 BTU | 0.0146536 kWh |
| 75 BTU | 0.0219803 kWh |
How to Convert BTUs to Kilowatt-hours
To convert btus to kilowatt-hours, multiply the energy by the following conversion ratio: 0.000293071 kilowatt-hours/british thermal unit.
Since one british thermal unit is equal to 0.000293071 kilowatt-hours, you can use this simple formula to convert:
The energy in kilowatt-hours is equal to the energy in btus multiplied by 0.000293071.
For example, here's how to convert 10000 btus to kilowatt-hours using the formula above.
How Many Kilowatt-hours Are in a British Thermal Unit?
There are 0.000293071 kilowatt-hours in a british thermal unit, which is why we use this value in the formula above.
Our british thermal unit to kilowatt-hour calculator automatically converts your energy measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
BTUs and kilowatt-hours are both units used to measure energy. Keep reading to learn more about each unit.
What Is a British Thermal Unit?
A british thermal unit is a unit of energy equal to 1,055.0558526 joules (J), the base unit for energy. Thermal energy unit equal to 1,055.056 Joules. [1]
The british thermal unit is classified as a US customary and imperial unit of energy. BTUs can be abbreviated as BTU; for example, 1 british thermal unit can be written as 1 BTU.
When working with btus (BTU) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, btus (BTU) are widely used across large-scale industrial, bulk, and macro-level energy specifications within US customary and imperial workflows, engineering documentation, and technical data sheets.
What Is a Kilowatt-hour?
A kilowatt-hour is a unit of energy equal to 3,600,000 joules (J), the base unit for energy. Equal to 3.6 Megajoules (1,000 Wh). [2]
The kilowatt-hour is classified as a metric and SI-compatible unit of energy. Kilowatt-hours can be abbreviated as kWh; for example, 1 kilowatt-hour can be written as 1 kWh.
In the metric system, "kilo" is the standard SI prefix for thousands, or 10³. This makes the kilowatt-hour (kWh) a convenient decimal multiple of the joule (J).
In practice, kilowatt-hours (kWh) are widely used across large-scale industrial, bulk, and macro-level energy specifications within SI metric workflows, engineering documentation, and technical data sheets.
When converting energy between btus (BTU) and kilowatt-hours (kWh), keep full floating-point precision (1 BTU = 0.000293071 kWh; 1 kWh = 3,412.1416331 BTU) during intermediate calculations and round only the final kilowatt-hour figure to match your instrument tolerance.
More British Thermal Unit & Kilowatt-hour Conversions
Need to calculate in the opposite direction? Use our kilowatt-hours to btus converter (kWh to BTU) to switch your starting unit immediately. You can also explore related tools such as converting ampere-hours to kilowatt-hours, converting btus to joules, or converting joules to calories.
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Frequently Asked Questions
References
- [1]NIST CODATA StandardNIST CODATA (CODATA Energy & Thermodynamic Constants)·Energy Metrology Standard — BTUs (BTU) to Kilowatt-hours (kWh)
- [2]NIST SP 811 SpecificationNIST SP 811 (NIST SP 811 App. B.9 (Energy, Work & Heat))·Unit Specifications: British Thermal Unit (BTU) (BTU) & Kilowatt-hour (kWh)
- [3]BIPM ReferenceBIPM (Derived SI Unit: Joule (J))·Conversion Factors & Mathematical Basis (BTU to kWh)