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Electronvolts to kJ/mol Converter
↔ Convert kJ/mol to eV/particle instead

Common Conversions

eV/particle kJ/mol
0.01 0.965
0.025 2.412
0.1 9.649
0.5 48.243
1 96.485
2 192.97
3 289.456
5 482.426
10 964.853
13.6 1312.2
100 9648.53

Why this conversion matters in chemistry

DFT output drops energies in eV or hartree per particle; downstream thermochemistry runs in kJ/mol. A 0.5 eV per-particle reaction energy becomes 48.24 kJ/mol — the form a microkinetic model accepts as input. The multiplier of 96.485 kJ/mol per eV is the Faraday constant divided by 1000, and falls out of Avogadro's number × the elementary charge. It comes up when computational energetics meet experimental thermochemistry — the same identity that links any per-particle electron-energy quantity to its molar form.

Formula

kJ/mol = eV × 96.485

Worked Examples

1 eV = 96.485 kJ/mol

The conversion anchor — a useful mental factor for any computational versus experimental cross-check.

0.025 eV = 2.412 kJ/mol

kT at room temperature — the per-mole thermal-energy floor.

4.5 eV = 434.2 kJ/mol

A typical strong-bond dissociation energy — about the C–H bond in methane.

13.6 eV = 1312.2 kJ/mol

Hydrogen's ionization energy expressed per mole — the calibration anchor for atomic energetics.

Frequently Asked Questions

How do I convert eV to kJ/mol?
Multiply by 96.485 — equivalent to the Faraday constant in kJ per (mol · V). So 1 eV becomes 96.485 kJ/mol. The factor is exact through the per-particle to per-mole conversion.
Why is the factor 96.485?
It's Avogadro's number × the elementary charge ÷ 1000: (6.022 × 10²³ × 1.602 × 10⁻¹⁹) / 1000 = 96.485 kJ/mol. The same constant turns up in electrochemistry as the Faraday constant in C/mol.
What is 1 eV in other energy units?
1 eV = 96.485 kJ/mol = 23.06 kcal/mol = 1.602 × 10⁻¹⁹ J = 8065.5 cm⁻¹. Memorizing one of these chains gives a fast cross-check on any energy conversion involving electronvolts.
How does DFT output relate to kJ/mol?
DFT calculations typically report energies in eV or hartree. Multiply eV by 96.485 to land in kJ/mol; multiply hartree by 2625.5 for the same units. The kJ/mol form is what most experimental thermodynamic comparisons expect.