Energy Converter

Convert between all common energy units instantly.

What this calculator does

1 kWh = 3,600,000 J = 3,412 BTU = 859,845 calories.

How it works

1 food calorie = 1 kilocalorie = 4,184 joules.

Frequently asked questions

How many joules in a kilocalorie?

1 kcal = 4,184 joules.