Convert watt-hour to British thermal unit
1 Wh = 3.412141633 BTU
1 Wh = 3.41 BTU
1 Wh in every energy unit
| joule | 3,600 J |
| kilojoule | 3.6 kJ |
| megajoule | 0.0036 MJ |
| calorie | 860 cal |
| kilocalorie | 0.86 kcal |
| watt-hour | 1 Wh |
| kilowatt-hour | 0.001 kWh |
| British thermal unit | 3.41 BTU |
| foot-pound | 2,660 ft⋅lb |
| electron volt | 2.25e+22 eV |
| kiloelectron volt | 2.25e+19 keV |
| megaelectron volt | 2.25e+16 MeV |
How the conversion works
Multiply by 3.412141633 to go from watt-hour to British thermal unit, 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? British thermal unit to watt-hour — 1 BTU = 0.2930710702 Wh.
watt-hour to British thermal unit — common values
| 1 Wh | 3.4121416 BTU |
| 2 Wh | 6.8242833 BTU |
| 3 Wh | 10.236425 BTU |
| 5 Wh | 17.060708 BTU |
| 10 Wh | 34.121416 BTU |
| 15 Wh | 51.182124 BTU |
| 20 Wh | 68.242833 BTU |
| 25 Wh | 85.303541 BTU |
| 50 Wh | 170.60708 BTU |
| 75 Wh | 255.91062 BTU |
| 100 Wh | 341.21416 BTU |
| 250 Wh | 853.03541 BTU |
| 500 Wh | 1,706.0708 BTU |
| 1000 Wh | 3,412.1416 BTU |