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Calixo

Energy Converter

Convert between joules, calories, kilocalories and kilowatt-hours.

Inputs

Saved Scenarios

— select 2+ to compare

Result

4,184.00

Spark says

How it's calculated

Formula

Result=Value×FactorfromFactortoResult = Value \times \dfrac{Factor_{from}}{Factor_{to}}
Factor
— Each unit's energy in joules

What is the Energy Converter?

This calculator converts energy between joules, calories, kilocalories (food Calories) and kilowatt-hours.

How to use it

  1. 1 Enter the value to convert.
  2. 2 Choose the unit you're converting from.
  3. 3 Choose the unit you're converting to.

Worked examples

1 kilocalorie to joules

1 kcal equals 4,184 joules.

Try it

Frequently asked questions

Is a food 'Calorie' the same as a calorie?

A food label's 'Calorie' (capital C) is actually a kilocalorie — 1,000 small calories.

Sources & references