British thermal units to Watt-hours Converter

British thermal units

The British thermal unit (BTU) is a unit of energy approximately equal to 1,055.06 joules, defined as the energy required to raise the temperature of one pound of water by one degree Fahrenheit. It remains the standard unit for heating and cooling capacity in HVAC systems in the United States: air conditioners and furnaces are rated in BTU/hour. A typical residential air conditioner is rated at 5,000–24,000 BTU/h. One BTU equals approximately 0.000293 kWh.

Watt-hours

The watt-hour (W·h) is a unit of energy equal to exactly 3,600 joules, defined as the energy consumed by a one-watt device operating for one hour. It is used in electrical engineering and consumer electronics for expressing battery capacities: a smartphone battery typically holds 10–20 Wh. In aviation, aircraft battery capacities are specified in watt-hours for international transport regulations (lithium batteries above 100 Wh face restrictions).

British thermal units (BTU) to Watt-hours (W·h) - Conversion Table
British thermal units (BTU)	Watt-hours (W·h)
0.1 BTU	0.029307107017222 W·h
1 BTU	0.29307107017222 W·h
2 BTU	0.58614214034444 W·h
3 BTU	0.87921321051667 W·h
5 BTU	1.4653553508611 W·h
10 BTU	2.9307107017222 W·h
20 BTU	5.8614214034444 W·h
30 BTU	8.7921321051667 W·h
50 BTU	14.653553508611 W·h
100 BTU	29.307107017222 W·h
1000 BTU	293.07107017222 W·h

Frequently Asked Questions (FAQ)

How many watt-hours are in 1 British thermal units?

1 British thermal units (BTU) is exactly 0.293071 watt-hours (W·h).

How do I convert British thermal units to watt-hours?

Multiply the value in British thermal units by 0.293071 to get the result in watt-hours. Or use the converter above — type any number and see the result instantly.

Convert British thermal units (BTU) to other units of Energy

Conversions from British thermal units
‣ British thermal units (BTU) to Joules (J)
‣ British thermal units (BTU) to Kilojoules (kJ)
‣ British thermal units (BTU) to Megajoules (MJ)
‣ British thermal units (BTU) to Calories (cal)
‣ British thermal units (BTU) to Kilocalories (kcal)
‣ British thermal units (BTU) to Watt-hours (W·h)
‣ British thermal units (BTU) to Kilowatt-hours (kW·h)
‣ British thermal units (BTU) to British thermal units (BTU)
‣ British thermal units (BTU) to Electronvolts (eV)
‣ British thermal units (BTU) to Ergs (erg)

Conversions to British thermal units
‣ Joules (J) to British thermal units (BTU)
‣ Kilojoules (kJ) to British thermal units (BTU)
‣ Megajoules (MJ) to British thermal units (BTU)
‣ Calories (cal) to British thermal units (BTU)
‣ Kilocalories (kcal) to British thermal units (BTU)
‣ Watt-hours (W·h) to British thermal units (BTU)
‣ Kilowatt-hours (kW·h) to British thermal units (BTU)
‣ British thermal units (BTU) to British thermal units (BTU)
‣ Electronvolts (eV) to British thermal units (BTU)
‣ Ergs (erg) to British thermal units (BTU)