Convert kJ to kcal
1 kJ = 0.239006 kcal · 1 kcal = 4.184 kJ · Exact by definition
1 kJ = 0.239006 kcal
The same value in other units
- joule
- 1000 J
- kilowatt-hour
- 0.000277778 kWh
- British thermal unit
- 0.947817 BTU
Settings
Digits kept in the answer. Automatic keeps six, which hides floating-point noise without losing anything real.
Convert a whole list
Paste one conversion per line, written the way you would say it: "5 km to mi". Handy for a column copied out of a spreadsheet.
Energy
kJ to kcal: conversion table
| kilojoule | kilocalorie |
|---|---|
| 1 kJ | 0.239006 kcal |
| 2 kJ | 0.478011 kcal |
| 3 kJ | 0.717017 kcal |
| 5 kJ | 1.19503 kcal |
| 10 kJ | 2.39006 kcal |
| 20 kJ | 4.78011 kcal |
| 25 kJ | 5.97514 kcal |
| 50 kJ | 11.9503 kcal |
| 100 kJ | 23.9006 kcal |
| 250 kJ | 59.7514 kcal |
| 500 kJ | 119.503 kcal |
| 1000 kJ | 239.006 kcal |
| kilocalorie | kilojoule |
|---|---|
| 1 kcal | 4.184 kJ |
| 2 kcal | 8.368 kJ |
| 3 kcal | 12.552 kJ |
| 5 kcal | 20.92 kJ |
| 10 kcal | 41.84 kJ |
| 20 kcal | 83.68 kJ |
| 25 kcal | 104.6 kJ |
| 50 kcal | 209.2 kJ |
| 100 kcal | 418.4 kJ |
| 250 kcal | 1046 kJ |
| 500 kcal | 2092 kJ |
| 1000 kcal | 4184 kJ |
How the conversion works
kcal = kJ × 0.23900574
Both units are defined exactly, so the precision of the kJ to kcal result depends only on the number of decimal places you choose.
METHOD AND SOURCES
Where the conversion factors come from
Results are calculated from the unit definitions stored in the converter, not copied from a lookup table. For exact units, every value in the table follows from the same factor shown in the formula above.
- BIPM — SI Brochure
The official definitions of the International System of Units (SI).
- NIST SP 811 — Conversion factors
Conversion-factor tables for SI and non-SI units.
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