Energy
KCAL to KJ Converter
Convert kilocalorie (food) (kcal) to kilojoule (kJ) in one step. One kilocalorie (food) equals 4.184 kilojoules — enter any amount to see the exact result, or use the table below for common values.
Result
1 kcal = 4.184 kJ
In kilojoules
4.184
Conversion rate
1 kcal = 4.184 kJ
Inverse rate
1 kJ = 0.239006 kcal
Conversion table
1 kcal = 4.184 kJ
2 kcal = 8.368 kJ
5 kcal = 20.92 kJ
10 kcal = 41.84 kJ
25 kcal = 104.6 kJ
50 kcal = 209.2 kJ
100 kcal = 418.4 kJ
250 kcal = 1,046 kJ
500 kcal = 2,092 kJ
1000 kcal = 4,184 kJHow this was worked out
- Step 11 kcal = 4.184 kJ
- Step 2Multiply: 1 × 4.184 = 4.184
- Step 3Result: 4.184 kJ
Conversions use exact definitions (for example 1 inch = 25.4 mm exactly), so results are precise rather than rounded mid-calculation.
Formula
How it works
- 1The conversion factor between kilocalorie (food)s and kilojoules is 4.184.
- 2Multiply your kilocalorie (food)s value by 4.184 to get kilojoules.
- 3To convert back, divide by 4.184 — or multiply by 0.239006.
Example
Input
1 kcal
Result
4.184 kJ
Frequently asked questions
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