⚡ BTU to kJ — BTU to Kilojoule Converter

Convert energy units — joules, calories, kilowatt-hours, BTU, kilojoules.

Formula 1 BTU = 1.05506 kJ
UnitNameValue
J Joule 1055.06
kJ Kilojoule 1.05506
cal Calorie 252.16539
kcal Kilocalorie (Cal) 0.25216539
kWh Kilowatt-hour 0.00029307222

About BTU to Kilojoule Conversion

The BTU (BTU) and the Kilojoule (kJ) are both units of energy. Converting between them is straightforward using the formula above.

Formula: 1 BTU = 1.05506 kJ

This converter uses internationally recognized conversion factors. All calculations are performed client-side in your browser — no data is sent to any server.

Frequently Asked Questions

How do I convert BTU to Kilojoule?

Use the converter above — enter your value in BTU and the result appears instantly in Kilojoule. The formula is: 1 BTU = 1.05506 kJ

How many Kilojoule are in 100 BTU?

100 BTU = 105.506 kJ

What is 1 BTU in Kilojoule?

1 BTU = 1.05506 kJ

Is this BTU to Kilojoule converter free?

Yes — Unitafy is completely free, requires no signup, and works instantly in your browser.