Kilocalories to Kilojoules (kcal to kJ) Converter

Convert kilocalories to kilojoules instantly. Use our live calculator, see the exact conversion formula, view the step-by-step lookup table, and review practical examples.

โšก

Energy Converter

COMMON CONVERSIONS
1 Kilocalorie=4184 Joule
1 Kilowatt-hour=3600000 Joule
1 BTU=1055.06 Joule
1 Kilojoule=0.2390057361 Kilocalorie
EXACT CONVERSION FORMULA
Kilojoules (kJ) = Kilocalories (kcal) ร— 4.184

1 kilocalorie (food Calorie) equals exactly 4.184 kilojoules.

Kilocalories to Kilojoules Conversion Table

Quick reference lookup table for converting common values from kilocalories to kilojoules:

Kilocalories (kcal)Kilojoules (kJ)
50 kcal209.2 kJ
100 kcal418.4 kJ
150 kcal627.6 kJ
200 kcal836.8 kJ
250 kcal1046 kJ
300 kcal1255.2 kJ
500 kcal2092 kJ
1000 kcal4184 kJ
1500 kcal6276 kJ
2000 kcal8368 kJ
2500 kcal10460 kJ

Practical Examples

100 kcal = 418.4 kJ
Snack bar
2000 kcal = 8368 kJ
Daily intake reference

Frequently Asked Questions

How do I convert calories to kJ on food labels?

Multiply the kcal (Calorie) value by 4.184 to get kilojoules. Australia and the EU use kJ on nutrition labels.