Convert British Thermal Units to Watt-hours
BTU to Wh · energy conversion
What are british thermal units and watt-hours?
A British thermal unit is the energy to heat one pound of water by 1 °F, used for heating and AC. A watt-hour is the energy of one watt sustained for one hour, equal to 3,600 J. For reference: a food Calorie is one kilocalorie (4,184 J), and home electricity is billed in kilowatt-hours.
How to convert british thermal units to watt-hours
1 BTU = 0.293071 Wh. To convert, multiply the number of british thermal units by 0.293071. For example, 5 BTU = 1.46536 Wh, and 20 BTU = 5.86142 Wh. To go the other way, multiply watt-hours by 3.41214 (since 1 Wh = 3.41214 BTU).
British Thermal Units to Watt-hours conversion table
| British Thermal Units (BTU) | Watt-hours (Wh) |
|---|---|
| 1 | 0.293071 |
| 10 | 2.93071 |
| 100 | 29.3071 |
| 500 | 146.536 |
| 1,000 | 293.071 |
| 2,000 | 586.142 |
| 5,000 | 1,465.36 |
FAQ
What is 1 BTU in Wh?
1 BTU = 0.293071 Wh. To convert any amount, multiply the number of british thermal units by 0.293071.
How do I convert watt-hours back to british thermal units?
Go the other way: 1 Wh = 3.41214 BTU, so multiply watt-hours by 3.41214 to get british thermal units.
Is a british thermal unit bigger than a watt-hour?
No — 1 BTU is the smaller unit, equal to 0.293071 Wh (it takes 3.41214 BTU to make one Wh).
Are these energy conversions exact?
They use the standard internationally-defined conversion factors. Results are rounded to six significant figures for readability, which is accurate enough for everyday and most technical use.