Convert Electronvolt to Joule (eV to J)
Instant precision conversion from Electronvolt (eV) to Joule (J) in Energy.
⚡ Direct Answer: 1 eV to J
1 Electronvolt (eV) equals exactly 1.602000e-19 Joule (J).
To convert from Electronvolt to Joule, multiply the quantity by 1.602000e-19 (or divide by 6.242200e+18).
📐 How Electronvolt (eV) and Joule (J) Relate
In metrology, energy quantifies capacity to perform mechanical work or transfer heat ($M \cdot L^2 / T^2$). Within this domain, Electronvolt (eV) and Joule (J) originate from SI joules, nutritional/thermal calories, electrical kilowatt-hours, and British Thermal Units (BTU). Standardized under ISO 80000-5 and International Steam Table thermochemical definitions.
Because both Electronvolt and Joule belong to the linear energy domain, conversion between them is strictly proportional. The exact conversion factor (1.602000e-19) guarantees zero precision drift across mathematical calculations.
🎯 Common Practical Applications
Quantum Mechanics & Particle Physics
Converting subatomic particle kinetic energies and accelerator beam energies into SI joules.
Semiconductor Bandgap & Solar Photovoltaics
Analyzing semiconductor bandgap absorption thresholds (e.g. 1.1 eV for silicon) in joules.
Spectroscopy & Molecular Ionization
Calculating molecular bond dissociation energies and photon emission wavelengths.
Reverse Conversion Option
Need to convert other energy units? Explore all combinations in the full Energy converter.
Electronvolt to Joule Conversion Table (1 to 1000)
| Electronvolt (eV) | Joule (J) | Joule (J) | Electronvolt (eV) |
|---|---|---|---|
| 1 eV | 1.602000e-19 J | 1 J | 6.242200e+18 eV |
| 2 eV | 3.204000e-19 J | 2 J | 1.248440e+19 eV |
| 3 eV | 4.806000e-19 J | 3 J | 1.872660e+19 eV |
| 5 eV | 8.010000e-19 J | 5 J | 3.121100e+19 eV |
| 10 eV | 1.602000e-18 J | 10 J | 6.242200e+19 eV |
| 15 eV | 2.403000e-18 J | 15 J | 9.363300e+19 eV |
| 20 eV | 3.204000e-18 J | 20 J | 1.248440e+20 eV |
| 25 eV | 4.005000e-18 J | 25 J | 1.560550e+20 eV |
| 50 eV | 8.010000e-18 J | 50 J | 3.121100e+20 eV |
| 75 eV | 1.201500e-17 J | 75 J | 4.681650e+20 eV |
| 100 eV | 1.602000e-17 J | 100 J | 6.242200e+20 eV |
| 250 eV | 4.005000e-17 J | 250 J | 1.560550e+21 eV |
| 500 eV | 8.010000e-17 J | 500 J | 3.121100e+21 eV |
| 1000 eV | 1.602000e-16 J | 1000 J | 6.242200e+21 eV |
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Frequently Asked Questions
How many Joule in 1 Electronvolt?
1 Electronvolt (eV) equals exactly 1.602000e-19 Joule (J). 1 Joule (J) equals approximately 6.242200e+18 Electronvolt (eV). Formula: eV ≈ J × 6.242197e+18.
How to convert Electronvolt to Joule?
To convert from Electronvolt to Joule, multiply the quantity by 1.602000e-19 (or divide by 6.242200e+18). Mathematical formula: J = eV × 1.602000e-19.
What is an example calculation converting Electronvolt to Joule?
To convert 10 Electronvolt to Joule: multiply 10 by the conversion factor 1.602000e-19 to get exactly 1.6020e-18 Joule (J).
How to convert back from Joule to Electronvolt?
To convert from Joule to Electronvolt, multiply by the inverse factor 6.242200e+18 (or divide by 1.602000e-19). Formula: eV = J × 6.242197e+18.