⚡ Energy Converter

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

Formula
All conversions table
UnitNameValue
Popular Energy conversions
J → cal Joule to Calorie kJ → kcal Kilojoule to Kilocalorie (Cal) BTU → kJ BTU to Kilojoule

All Energy Conversion Pairs

J → kJ J → cal J → kcal J → kWh J → BTU kJ → J kJ → cal kJ → kcal kJ → kWh kJ → BTU cal → J cal → kJ cal → kcal cal → kWh cal → BTU kcal → J kcal → kJ kcal → cal kcal → kWh kcal → BTU kWh → J kWh → kJ kWh → cal kWh → kcal kWh → BTU BTU → J BTU → kJ BTU → cal BTU → kcal BTU → kWh

About Energy Units

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

Use the converter above to instantly convert between any two energy units. Click any row in the table to set it as your target unit. All conversions use internationally recognized conversion factors.