Convert British thermal unit to watt-hour
1 BTU = 0.2930710702 Wh
1 BTU = 0.293 Wh
1 BTU in every energy unit
| joule | 1,060 J |
| kilojoule | 1.06 kJ |
| megajoule | 0.00106 MJ |
| calorie | 252 cal |
| kilocalorie | 0.252 kcal |
| watt-hour | 0.293 Wh |
| kilowatt-hour | 0.000293 kWh |
| British thermal unit | 1 BTU |
| foot-pound | 778 ft⋅lb |
| electron volt | 6.59e+21 eV |
| kiloelectron volt | 6.59e+18 keV |
| megaelectron volt | 6.59e+15 MeV |
How the conversion works
Multiply by 0.2930710702 to go from British thermal unit to watt-hour, or divide by it to go back. Every conversion on this site routes through the SI value (J) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.
Going the other way? watt-hour to British thermal unit — 1 Wh = 3.412141633 BTU.
British thermal unit to watt-hour — common values
| 1 BTU | 0.29307107 Wh |
| 2 BTU | 0.58614214 Wh |
| 3 BTU | 0.87921321 Wh |
| 5 BTU | 1.4653554 Wh |
| 10 BTU | 2.9307107 Wh |
| 15 BTU | 4.3960661 Wh |
| 20 BTU | 5.8614214 Wh |
| 25 BTU | 7.3267768 Wh |
| 50 BTU | 14.653554 Wh |
| 75 BTU | 21.98033 Wh |
| 100 BTU | 29.307107 Wh |
| 250 BTU | 73.267768 Wh |
| 500 BTU | 146.53554 Wh |
| 1000 BTU | 293.07107 Wh |