Btu to Watt Hours converter
BTU to Wh — 1 kcal = 4,184 J
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Convert Btu to all units
J Joules—
kJ Kilojoules—
cal Calories—
kcal Kilocalories—
Wh Watt Hours—
kWh Kilowatt Hours—
eV Electronvolts—
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Conversion Formula
Btu to Watt Hours: 1 kcal = 4,184 J
Example: To convert 500 kcal to joules: 500 × 4,184 = 2,092,000 J
Quick Reference: Btu to Watt Hours
| Btu | Watt Hours |
|---|---|
| 1 BTU | 0.293072 Wh |
| 5 BTU | 1.4654 Wh |
| 10 BTU | 2.9307 Wh |
| 25 BTU | 7.3268 Wh |
| 50 BTU | 14.6536 Wh |
| 100 BTU | 29.3072 Wh |
| 500 BTU | 146.54 Wh |
| 1,000 BTU | 293.07 Wh |
Frequently Asked Questions
How do I convert Btu to Watt Hours?
Multiply your btu value by the conversion factor. To convert 500 kcal to joules: 500 × 4,184 = 2,092,000 J. You can also use the converter above for instant results.
What is BTU in Wh?
1 BTU equals 0.293072 Wh. This is based on the standard conversion factor: 1 kcal = 4,184 J.
Is this converter accurate?
Yes. ConvertFast uses precise conversion factors computed client-side in your browser. Results are accurate to 6 significant digits, which covers all practical use cases.