Energy conversion
1 btu (international table) (BTUₕᵀ) equals 0.293071070172 watt-hour (Wh). Enter any value below to convert from BTUₕᵀ to Wh.
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1 BTUₕᵀ = 0.2930710702 Wh
| Unit | Value |
|---|---|
| Joule J | 1,055.05585262 |
| Kilojoule kJ | 1.0550558526 |
| Thermochemical calorie cal | 252.1644007218 |
| Kilocalorie kcal | 0.2521644007 |
| Watt-hour Wh | 0.2930710702 |
| Kilowatt-hour kWh | 0.0002930711 |
| BTU (International Table) BTUₕᵀ | 1 |
| Foot-pound ft·lb | 778.169262266 |
| Electronvolt eV | 6.5851406782e21 |
Formula
Use this relationship for a direct conversion:
2 BTUₕᵀ = 0.5861421403 Wh.
The thermochemical calorie and International Table BTU are named explicitly to avoid ambiguous legacy definitions.
Quick reference
| BTU (International Table) (BTUₕᵀ) | Watt-hour (Wh) |
|---|---|
| 0.01 | 0.0029307107 |
| 0.1 | 0.029307107 |
| 1 | 0.2930710702 |
| 2 | 0.5861421403 |
| 5 | 1.4653553509 |
| 10 | 2.9307107017 |
| 25 | 7.3267767543 |
| 50 | 14.6535535086 |
| 100 | 29.3071070172 |
| 1,000 | 293.0710701722 |
From unit
The International Table British thermal unit.
Symbol: BTUₕᵀ
To unit
The energy from one watt sustained for one hour.
Symbol: Wh
Keep converting
Source
Definitions are checked against NIST SP 811: Energy units. Calculations use full internal precision before display rounding.
View the complete energy converterQuestions
Use the formula Wh = BTUₕᵀ x 0.293071070172. 1 btu (international table) (BTUₕᵀ) equals 0.293071070172 watt-hour (Wh).
The thermochemical calorie and International Table BTU are named explicitly to avoid ambiguous legacy definitions.
