Electronvolt to Kilojoule Converter
Energy · unit-converter
Convert Electronvolt to Kilojoule with fixed input and output units, a step-by-step formula line, and reference tables. Factors are joule-based; food energy uses thermochemical calories. The full Energy Converter also includes MMBtu, toe, thermal kWh, and MeV/GeV.
Calculator
From: Electronvolt (ev)
To: Kilojoule (kj)
About Electronvolt
The electronvolt is the energy change of one elementary charge across 1 V: 1 eV ≈ 1.602176634×10⁻¹⁹ J (exact by SI definition). Used in particle physics and chemistry.
About Kilojoule
One kilojoule is 1,000 J. Scientific and engineering contexts often use kJ alongside joules.
How to convert electronvolts to kilojoules
1 electronvolt is equal to 1.60217663e-22 kilojoule when both are expressed in joule-equivalents:
1 ev = (1.602176634e-19 J ÷ 1,000 J) kj = 1.60217663e-22 kj
Each electronvolt is defined as 1.602176634e-19 J and each kilojoule as 1,000 J in this tool, so one ev equals 1.602176634e-19 ÷ 1,000 kj = 1.60217663e-22 kj.
Let d(ev) be the numeric amount in Electronvolt (ev), and d(kj) the amount in Kilojoule (kj). Then:
d(kj) = d(ev) × (1.602176634e-19 / 1,000)
Equivalently, divide by how many ev fit into one kj (joules per kj divided by joules per ev):
d(kj) = d(ev) ÷ 6.24150907e+21
Or: kilojoule = electronvolt ÷ 6.24150907e+21
Examples
Example #1: Convert 1 ev to kilojoule
1 ev = 1 ev × (1.602176634e-19/1,000) kj = 0 kj
1 ev = 1 ev ÷ 6.24150907e+21 = 0 kj
Example #2: Convert 10 ev to kilojoule
10 ev = 10 ev × (1.602176634e-19/1,000) kj = 0 kj
10 ev = 10 ev ÷ 6.24150907e+21 = 0 kj
Summary
To convert Electronvolt to Kilojoule, multiply the value in ev by the ratio of joules per ev divided by joules per kj. Equivalently: value_kj = value_ev × (1.602176634e-19 / 1000). Numerically, 1 ev equals 1.6021766339999998e-22 kj.
Relationship context
You are converting between atomic-scale energy (electronvolts) (Electronvolts) and SI energy (joules) (Kilojoules). All values are mapped through joules first. The numeric factor is 1.602177e-22.
Conversion tables
| Electronvolt (ev) | Kilojoule (kj) |
|---|---|
| 0.1 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 0 |
| 9 | 0 |
| Electronvolt (ev) | Kilojoule (kj) |
|---|---|
| 10 | 0 |
| 20 | 0 |
| 30 | 0 |
| 40 | 0 |
| 50 | 0 |
| 60 | 0 |
| 70 | 0 |
| 80 | 0 |
| 90 | 0 |
| 100 | 0 |