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BTU to Watt-hours Converter

Quick answer: 1 BTU = 0.2930710702 Wh. To convert BTU to watt-hours, divide by 3.412142.

BTU
Wh

Watt-hours = BTU × 0.2930710702

Swap: Watt-hours to BTU

BTU to Watt-hours conversion table

BTUWatt-hours
1 BTU0.2930710702 Wh
2 BTU0.5861421403 Wh
5 BTU1.465355 Wh
10 BTU2.930711 Wh
25 BTU7.326777 Wh
50 BTU14.653554 Wh
100 BTU29.307107 Wh

How to convert BTU to watt-hours

Watt-hours = BTU × 0.2930710702. For example, 2 BTU = 0.5861421403 Wh. Type a value in either box above: the other one updates instantly, both ways.

What is a BTU?

A BTU (British thermal unit) is about 1,055 joules, the energy to heat one pound of water by 1 °F.

What is a watt-hour?

A watt-hour (Wh) is the energy of one watt for one hour, 3,600 joules; batteries are rated in Wh.

How do I convert BTU to watt-hours?

Use the formula Watt-hours = BTU × 0.2930710702. Type a value in the BTU box and the result appears instantly.

How many watt-hours are in 1 BTU?

1 BTU = 0.2930710702 Wh.

Is this converter free and private?

Yes. It is free, needs no sign-up, and the calculation runs in your browser: nothing is sent to a server.

Is a food Calorie the same as a calorie?

No. The Calorie on food labels is a kilocalorie (kcal), 1000 small calories or 4.184 kJ. This page uses the thermochemical calorie, 4.184 J.