Convert Electronvolt to Joule
Live bidirectional calculator for Electronvolts (eV) and Joules (J) with verified formula and conversion charts.
Energy9 units
How the Calculation Works (Linear Scaling)
Since 1 Joule = 6.241509e+18 Electronvolts, divide the value in Electronvolts by 6.241509e+18.
Electronvolt to Joule Conversion Table
Precomputed values for quick reference and printing.
| Electronvolt | Joule |
|---|---|
| 1 eV | 1.6022e-19 J |
| 2 eV | 3.2044e-19 J |
| 3 eV | 4.8065e-19 J |
| 4 eV | 6.4087e-19 J |
| 5 eV | 8.0109e-19 J |
| 6 eV | 9.6131e-19 J |
| 7 eV | 1.1215e-18 J |
| 8 eV | 1.2817e-18 J |
| 9 eV | 1.442e-18 J |
| 10 eV | 1.6022e-18 J |
| 15 eV | 2.4033e-18 J |
| 20 eV | 3.2044e-18 J |
| 25 eV | 4.0054e-18 J |
| 30 eV | 4.8065e-18 J |
| 40 eV | 6.4087e-18 J |
| 50 eV | 8.0109e-18 J |
| 75 eV | 1.2016e-17 J |
| 100 eV | 1.6022e-17 J |
| Joule | Electronvolt |
|---|---|
| 1 J | 6.2415e+18 eV |
| 2 J | 1.2483e+19 eV |
| 3 J | 1.8725e+19 eV |
| 4 J | 2.4966e+19 eV |
| 5 J | 3.1208e+19 eV |
| 6 J | 3.7449e+19 eV |
| 7 J | 4.3691e+19 eV |
| 8 J | 4.9932e+19 eV |
| 9 J | 5.6174e+19 eV |
| 10 J | 6.2415e+19 eV |
| 15 J | 9.3623e+19 eV |
| 20 J | 1.2483e+20 eV |
| 25 J | 1.5604e+20 eV |
| 30 J | 1.8725e+20 eV |
| 40 J | 2.4966e+20 eV |
| 50 J | 3.1208e+20 eV |
| 75 J | 4.6811e+20 eV |
| 100 J | 6.2415e+20 eV |
๐ Standard Benchmark Reference Values
2019 SI fundamental quantum redefinition constant.
Exact RatioAbout Electronvolt (eV)
The kinetic energy gained by an electron accelerating through an electric potential difference of one volt (exactly 1.602176634 ร 10โปยนโน J).
History: Adopted in early 20th-century quantum physics; fixed to an exact value in the 2019 SI redefinition.
Common Uses: Atomic physics, particle accelerators, photon energy levels, semiconductor bandgaps.
About Joule (J)
The SI coherent derived unit of energy, equal to the work done by a force of one newton over a distance of one meter (1 Nยทm or 1 Wยทs).
History: Named in honor of English physicist James Prescott Joule for his experiments on the mechanical equivalent of heat.
Common Uses: Physics, mechanical work, kinetic energy, laser pulse energy.
โ Frequently Asked Questions
How many Joules are in 1 Electronvolt?
There are exactly 1.602177e-19 Joules in 1 Electronvolt (1 eV = 1.602177e-19 J).
What is the formula to convert Electronvolt to Joule?
The formula is: Joule = Electronvolt / 6.241509e+18. Since 1 Joule = 6.241509e+18 Electronvolts, divide the value in Electronvolts by 6.241509e+18.
How do I convert 1 eV to J manually?
To convert 1 eV to J: apply the formula Joule = Electronvolt / 6.241509e+18. Substituting gives: 1 / 6.241509e+18 = 1.6022e-19 J.