Energy Converter
4.184
1 Kilocalorie (kcal) = 4.184 Kilojoule (kJ)
All Conversions
Joule (J)4,184
Kilojoule (kJ)4.184
Calorie (cal)1,000
Kilocalorie (kcal)1
Watt-hour (Wh)1.162222
Kilowatt-hour (kWh)0.001162
How to Convert Energy Units
Energy conversion is used in nutrition (calories), electricity (kWh), heating (BTU), and physics (joules). Understanding these conversions helps with diet planning, understanding energy bills, and scientific calculations.
Frequently Asked Questions
How many calories are in a kilojoule?
One kilocalorie (food calorie) equals approximately 4.184 kilojoules.
What is a BTU?
A British Thermal Unit is the energy needed to raise one pound of water by one degree Fahrenheit, equal to about 1,055 joules.