BTU to Joules Converter

BTU to Joules Converter

Joules
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Kilojoules
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1 BTU = 1055.06 J · 1 BTU = 1.05506 kJ

How to convert BTU to joules

To convert BTU to joules, multiply by 1055.06. For example, 10 BTU × 1055.06 = 10,550.6 joules. Going the other way, divide joules by 1055.06 to get BTU.

To convert BTU to kilojoules, multiply by 1.05506. So 1000 BTU × 1.05506 = 1055.06 kJ.

1 BTU = 1055.06 joules = 1.05506 kJ = 0.252164 kcal. BTU (British Thermal Unit) is used in the US for heating and cooling systems, air conditioners, and furnaces. Most other countries use joules or kilowatt hours.

BTU to joules conversion table

BTU Joules (J) Kilojoules (kJ)
1 BTU1055.06 J1.055 kJ
10 BTU10,550.6 J10.551 kJ
100 BTU105,506 J105.506 kJ
500 BTU527,530 J527.530 kJ
1000 BTU1,055,060 J1055.06 kJ
5000 BTU5,275,300 J5275.30 kJ
10000 BTU10,550,600 J10550.6 kJ

Frequently asked questions

How many joules is 1 BTU?
1 BTU = 1055.06 joules = 1.05506 kJ = 0.252164 kcal.
What does BTU stand for?
BTU stands for British Thermal Unit. It is the amount of energy needed to raise the temperature of 1 pound of water by 1 degree Fahrenheit.
How many BTU is 1 kWh?
1 kWh = 3412.14 BTU. Calculation: 3,600,000 ÷ 1055.06 = 3412.14 BTU.
What is BTU used for?
BTU is used in the US for rating heating and cooling systems like air conditioners, furnaces, and heat pumps. A typical window air conditioner is 5000-12000 BTU.
How many joules is 1000 BTU?
1000 BTU = 1,055,060 joules = 1055.06 kJ. Calculation: 1000 × 1055.06 = 1,055,060 J.