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Energy
BTU to Watt-hours
Convert BTU (BTU) to watt-hours (Wh). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 BTU = 0.293072 Wh
BTU to Watt-hours Conversion Table
Common values, ready to copy:
| BTU | watt-hours |
|---|---|
| 1 BTU | 0.293072 Wh |
| 2 BTU | 0.586144 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 |
| 1,000 BTU | 293.07 Wh |
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Formula
watt-hours = BTU × 2.93072222e-1
Energy uses the SI joule. Food calories (kcal) are 1,000 small calories: 1 kcal = 4,184 J. 1 kWh = 3.6 MJ = 3,600,000 J. 1 BTU = 1,055.06 J.
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