BTU to watt-hours
Convert btu to watt-hour — instant, free, with the formula shown.
1 BTU=0.293071 Wh
How to convert btu to watt-hour
To convert btu to watt-hour, multiply by 0.29307107:
Wh = BTU × 0.29307107
For example, 10 BTU × 0.293071 = 2.930711 Wh.
BTU to Wh conversion table
| BTU (BTU) | watt-hours (Wh) |
|---|---|
| 1 BTU | 0.293071 Wh |
| 2 BTU | 0.586142 Wh |
| 5 BTU | 1.465355 Wh |
| 10 BTU | 2.930711 Wh |
| 25 BTU | 7.326777 Wh |
| 50 BTU | 14.653553 Wh |
| 100 BTU | 29.307107 Wh |
| 250 BTU | 73.267767 Wh |
| 500 BTU | 146.535535 Wh |
| 1000 BTU | 293.071069 Wh |
Other btu conversions
Convert to watt-hour from another unit
BTU to Wh — frequently asked
How many watt-hours are in 1 btu?
1 btu = 0.293071 watt-hours (BTU × 0.293071 = Wh).
What is the formula to convert btu to watt-hour?
Multiply your btu value by 0.29307107 to get watt-hour.
How do I convert 10 BTU to watt-hours?
10 BTU = 2.930711 Wh. For 100 BTU the answer is 29.307107 Wh. Use the calculator on this page for any other value.
When to convert btu to watt-hour
1Electricity bills (kWh)
2Nutrition labels (kcal / food cal)
3HVAC and heating (BTU, therms)
4Physics and chemistry (J, eV)
Energy conversion — common questions
Is a food calorie the same as a calorie?
No — a food 'Calorie' (capital C) actually means 1 kilocalorie = 1,000 small calories = 4,184 J. Nutrition labels typically write 'cal' meaning kcal.
How many joules in 1 kWh?
1 kWh = 3,600,000 J (3.6 MJ). Because 1 kW × 1 hour = 1,000 W × 3,600 s = 3,600,000 J.
What is a BTU?
British Thermal Unit — the energy required to raise 1 pound of water by 1 °F. 1 BTU ≈ 1,055 J.
Related calculators & tools
Compound Interest Calculator
SIP, FD, and investment returns
BMI Calculator
Body Mass Index with Asian thresholds
Calorie Calculator
Daily intake, TDEE & macros
Loan EMI Calculator
Home, car & personal loan EMI
Caffeine Half-Life Calculator
How long caffeine stays in your system
Percentage Calculator
Convert marks to percentage