Kilojoules per mole to wavenumbers
Type a value in kJ/mol to get it in cm⁻¹ 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: cm⁻¹ 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 cm⁻¹
To convert kilojoules per mole to wavenumbers, multiply by 83.5935.
Example: 100 kJ/mol × 83.5935 = 8,359.35 cm⁻¹.
In the other direction, 1 cm⁻¹ = 0.0119627 kJ/mol.
Every unit
Your energy in every unit
Tables
kJ/mol to cm⁻¹ conversion table
| kJ/mol | cm⁻¹ |
|---|---|
| 1 kJ/mol | 83.5935 cm⁻¹ |
| 5 kJ/mol | 417.967 cm⁻¹ |
| 10 kJ/mol | 835.935 cm⁻¹ |
| 25 kJ/mol | 2,089.84 cm⁻¹ |
| 50 kJ/mol | 4,179.67 cm⁻¹ |
| 100 kJ/mol | 8,359.35 cm⁻¹ |
| 200 kJ/mol | 16,718.7 cm⁻¹ |
| 300 kJ/mol | 25,078 cm⁻¹ |
| 400 kJ/mol | 33,437.4 cm⁻¹ |
| 500 kJ/mol | 41,796.7 cm⁻¹ |
| 1,000 kJ/mol | 83,593.5 cm⁻¹ |
cm⁻¹ to kJ/mol conversion table
| cm⁻¹ | kJ/mol |
|---|---|
| 1 cm⁻¹ | 0.0119627 kJ/mol |
| 5 cm⁻¹ | 0.0598133 kJ/mol |
| 10 cm⁻¹ | 0.119627 kJ/mol |
| 25 cm⁻¹ | 0.299066 kJ/mol |
| 50 cm⁻¹ | 0.598133 kJ/mol |
| 100 cm⁻¹ | 1.19627 kJ/mol |
| 200 cm⁻¹ | 2.39253 kJ/mol |
| 300 cm⁻¹ | 3.5888 kJ/mol |
| 400 cm⁻¹ | 4.78506 kJ/mol |
| 500 cm⁻¹ | 5.98133 kJ/mol |
| 1,000 cm⁻¹ | 11.9627 kJ/mol |
Quick answers
Quick answers
- How many cm⁻¹ is 1 kJ/mol?
- 1 kJ/mol is 83.5935 cm⁻¹.
- How many cm⁻¹ is 10 kJ/mol?
- 10 kJ/mol is 835.935 cm⁻¹.
- How many cm⁻¹ is 100 kJ/mol?
- 100 kJ/mol is 8,359.35 cm⁻¹.
The units
About these units
Kilojoules per mole (kJ/mol)
The chemist’s standard for bond energies and reaction enthalpies.
Wavenumbers (cm⁻¹)
The spectroscopist’s unit: crests per centimeter, proportional to energy.
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