100 watt hours to BTU
100 Wh = 341.21 BTU. Change the amount below, or read the formula and the reference table further down.
100 watt hours equals
BTU
1 Wh = 3.412142 BTU
The formula
Watt hours and BTU both measure energy from the same zero, so a single multiplier does the job.
BTU = Wh × 3.41214163
Going the other way? Convert BTU to watt hours.
Watt hours to BTU table
Values either side of 100 Wh.
| Watt hours (Wh) | BTU (BTU) |
|---|---|
| 0 | 0 |
| 10 | 34.1214 |
| 20 | 68.2428 |
| 30 | 102.36 |
| 40 | 136.49 |
| 50 | 170.61 |
| 60 | 204.73 |
| 70 | 238.85 |
| 80 | 272.97 |
| 90 | 307.09 |
| 100 | 341.21 |
| 110 | 375.34 |
| 120 | 409.46 |
| 130 | 443.58 |
| 140 | 477.7 |
| 150 | 511.82 |
| 160 | 545.94 |
| 170 | 580.06 |
| 180 | 614.19 |
| 190 | 648.31 |
| 200 | 682.43 |
Questions people ask
- How many BTU are in a watt hour?
- One watt hour equals 3.41214163 BTU.
- How do I convert watt hours to BTU by hand?
- Multiply the number of watt hours by 3.41214163. For a rough check, 3.4 is close enough for most everyday use.
- What is 100 watt hours in BTU?
- 100 watt hours is 341.21 BTU.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.