Watt-hours to British thermal units converter
British thermal units (BTU)
1 watt-hour = 3.412141633 British thermal units
How to convert watt-hours to British thermal units
BTU = Wh × 3.41214163313
Multiply the number of watt-hours by 3.41214163313 to get British thermal units. Going the other way, divide by 3.41214163313 (or multiply by 0.293071070172).
One watt-hour is exactly defined as 3.41214163313 British thermal units (to 12 significant figures), and one British thermal unit is 0.293071070172 watt-hours.
Worked examples
- Convert 5 watt-hours: 5 × 3.41214163313 = 17.06070817 17.06070817 British thermal units.
- Convert 12.5 watt-hours: 12.5 × 3.41214163313 = 42.65177041 42.65177041 British thermal units.
- Convert 250 watt-hours: 250 × 3.41214163313 = 853.0354083 853.0354083 British thermal units.
Quick-reference table
| Wh | BTU |
|---|---|
| 1 | 3.412141633 |
| 2 | 6.824283266 |
| 3 | 10.2364249 |
| 5 | 17.06070817 |
| 10 | 34.12141633 |
| 15 | 51.1821245 |
| 20 | 68.24283266 |
| 25 | 85.30354083 |
| 50 | 170.6070817 |
| 75 | 255.9106225 |
| 100 | 341.2141633 |
| 1,000 | 3,412.141633 |
| BTU | Wh |
|---|---|
| 1 | 0.2930710702 |
| 2 | 0.5861421403 |
| 3 | 0.8792132105 |
| 5 | 1.465355351 |
| 10 | 2.930710702 |
| 15 | 4.396066053 |
| 20 | 5.861421403 |
| 25 | 7.326776754 |
| 50 | 14.65355351 |
| 75 | 21.98033026 |
| 100 | 29.30710702 |
| 1,000 | 293.0710702 |
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Frequently asked questions
How many British thermal units are in 1 watt-hour?
1 watt-hour equals 3.412141633 British thermal units.
What is the formula to convert watt-hours to British thermal units?
Use BTU = Wh × 3.41214163313. Multiply the number of watt-hours by 3.41214163313 to get British thermal units. Going the other way, divide by 3.41214163313 (or multiply by 0.293071070172).
What is 100 watt-hours in British thermal units?
100 watt-hours is 341.2141633 British thermal units.