Energy Converter
Energy units for food, electricity and physics. The "calorie" on a nutrition label is a kilocalorie — 1,000 of the calories used in physics.
ad 728x90
ad 320x50
1 joule = 0.001 kilojoules · open this conversion
Units covered
| Unit | Symbol | In joules |
|---|---|---|
| Joules | J | 1 |
| Kilojoules | kJ | 1,000 |
| Calories | cal | 4.184 |
| Kilocalories | kcal | 4,184 |
| Watt hours | Wh | 3,600 |
| Kilowatt hours | kWh | 3,600,000 |
A food Calorie (capital C) is a kilocalorie. The thermochemical calorie of 4.184 J is used here.
native ad unit
All energy conversions
Joules to KilojoulesJoules to CaloriesJoules to KilocaloriesJoules to Watt hoursJoules to Kilowatt hoursKilojoules to JoulesKilojoules to CaloriesKilojoules to KilocaloriesKilojoules to Watt hoursKilojoules to Kilowatt hoursCalories to JoulesCalories to KilojoulesCalories to KilocaloriesCalories to Watt hoursCalories to Kilowatt hoursKilocalories to JoulesKilocalories to KilojoulesKilocalories to CaloriesKilocalories to Watt hoursKilocalories to Kilowatt hoursWatt hours to JoulesWatt hours to KilojoulesWatt hours to CaloriesWatt hours to KilocaloriesWatt hours to Kilowatt hoursKilowatt hours to JoulesKilowatt hours to KilojoulesKilowatt hours to CaloriesKilowatt hours to KilocaloriesKilowatt hours to Watt hours
ad 728x90
ad 320x50