BTU Converter

Convert BTU to other energy units

What is This Tool?

Energy converters translate between joules, calories, kilocalories, BTU, kilowatt-hours, and foot-pounds. These conversions bridge physics, nutrition, engineering, and utility billing contexts.

Formula
target = value x (source in joules) / (target in joules) Base unit: Joules (J) 1 cal = 4.184 J, 1 BTU = 1055.06 J, 1 kWh = 3,600,000 J
Worked Examples

1. BTU to Joules

Given: 100 BTU

1 BTU = 1055.06 J

100 x 1055.06 = 105,506 J

Result: 105,506 J

2. Joules to Calories

Given: 4,184 J

1 cal = 4.184 J

4184 / 4.184 = 1000 cal

Result: 1,000 calories

Frequently Asked Questions