Hartrees to kilojoules per mole
Type a value in Eh to get it in kJ/mol instantly.
262,550kJ/mol
That's 278× as strong as a nitrogen triple bond — nothing on our list beats it. That is about 105,900 times the thermal energy available at room temperature.
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 Eh to kJ/mol
To convert hartrees to kilojoules per mole, multiply by 2,625.5.
Example: 100 Eh × 2,625.5 = 262,550 kJ/mol.
In the other direction, 1 kJ/mol = 0.00038088 Eh.
Every unit
Your energy in every unit
Tables
Eh to kJ/mol conversion table
| Eh | kJ/mol |
|---|---|
| 1 Eh | 2,625.5 kJ/mol |
| 5 Eh | 13,127.5 kJ/mol |
| 10 Eh | 26,255 kJ/mol |
| 25 Eh | 65,637.5 kJ/mol |
| 50 Eh | 131,275 kJ/mol |
| 100 Eh | 262,550 kJ/mol |
| 200 Eh | 525,100 kJ/mol |
| 300 Eh | 787,650 kJ/mol |
| 400 Eh | 1,050,200 kJ/mol |
| 500 Eh | 1,312,750 kJ/mol |
| 1,000 Eh | 2,625,500 kJ/mol |
kJ/mol to Eh conversion table
| kJ/mol | Eh |
|---|---|
| 1 kJ/mol | 0.00038088 Eh |
| 5 kJ/mol | 0.0019044 Eh |
| 10 kJ/mol | 0.0038088 Eh |
| 25 kJ/mol | 0.009522 Eh |
| 50 kJ/mol | 0.019044 Eh |
| 100 kJ/mol | 0.038088 Eh |
| 200 kJ/mol | 0.076176 Eh |
| 300 kJ/mol | 0.114264 Eh |
| 400 kJ/mol | 0.152352 Eh |
| 500 kJ/mol | 0.19044 Eh |
| 1,000 kJ/mol | 0.38088 Eh |
Quick answers
Quick answers
- How many kJ/mol is 1 Eh?
- 1 Eh is 2,625.5 kJ/mol.
- How many kJ/mol is 10 Eh?
- 10 Eh is 26,255 kJ/mol.
- How many kJ/mol is 100 Eh?
- 100 Eh is 262,550 kJ/mol.
The units
About these units
Hartrees (Eh)
The atomic unit of energy, used in quantum chemistry output files.
Kilojoules per mole (kJ/mol)
The chemist’s standard for bond energies and reaction enthalpies.
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