Kilojoules per mole to kilocalories per mole
Type a value in kJ/mol to get it in kcal/mol instantly.
That's 1.25× as strong as a typical activation energy, while a carbon–carbon single bond is 3.5× higher. That is about 40.34 times the thermal energy available at room temperature.
Convert the other way: kcal/mol to kJ/mol
What it means
How much energy is that?
Per-particle units such as eV and cm⁻¹ are scaled by Avogadro’s number to become per-mole figures, so the two only match for one mole.
The math
How to convert kJ/mol to kcal/mol
To convert kilojoules per mole to kilocalories per mole, multiply by 0.239006.
Example: 100 kJ/mol × 0.239006 = 23.9006 kcal/mol.
In the other direction, 1 kcal/mol = 4.184 kJ/mol.
Every unit
Your energy in every unit
Tables
kJ/mol to kcal/mol conversion table
| kJ/mol | kcal/mol |
|---|---|
| 1 kJ/mol | 0.239006 kcal/mol |
| 5 kJ/mol | 1.19503 kcal/mol |
| 10 kJ/mol | 2.39006 kcal/mol |
| 25 kJ/mol | 5.97514 kcal/mol |
| 50 kJ/mol | 11.9503 kcal/mol |
| 100 kJ/mol | 23.9006 kcal/mol |
| 200 kJ/mol | 47.8011 kcal/mol |
| 300 kJ/mol | 71.7017 kcal/mol |
| 400 kJ/mol | 95.6023 kcal/mol |
| 500 kJ/mol | 119.503 kcal/mol |
| 1,000 kJ/mol | 239.006 kcal/mol |
kcal/mol to kJ/mol conversion table
| kcal/mol | kJ/mol |
|---|---|
| 1 kcal/mol | 4.184 kJ/mol |
| 5 kcal/mol | 20.92 kJ/mol |
| 10 kcal/mol | 41.84 kJ/mol |
| 25 kcal/mol | 104.6 kJ/mol |
| 50 kcal/mol | 209.2 kJ/mol |
| 100 kcal/mol | 418.4 kJ/mol |
| 200 kcal/mol | 836.8 kJ/mol |
| 300 kcal/mol | 1,255.2 kJ/mol |
| 400 kcal/mol | 1,673.6 kJ/mol |
| 500 kcal/mol | 2,092 kJ/mol |
| 1,000 kcal/mol | 4,184 kJ/mol |
Quick answers
Quick answers
- How many kcal/mol is 1 kJ/mol?
- 1 kJ/mol is 0.239006 kcal/mol.
- How many kcal/mol is 10 kJ/mol?
- 10 kJ/mol is 2.39006 kcal/mol.
- How many kcal/mol is 100 kJ/mol?
- 100 kJ/mol is 23.9006 kcal/mol.
The units
About these units
Kilojoules per mole (kJ/mol)
The chemist’s standard for bond energies and reaction enthalpies.
Kilocalories per mole (kcal/mol)
Still standard in biochemistry and in much US literature.
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