/convert/electron-volts-to-joules/ Convert electron volts (eV) to joules instantly. Includes a reference table and formula. article electron volts (eV) to joules Converter — 247QuickTools ,{ "@context": "https://schema.org", "@type": "SpeakableSpecification", "cssSelector": [".tool-intro", ".info-gain-section"] }
⚡ Energy

electron volts (eV) to joules Converter

Convert electron volts (eV) to joules instantly. Includes a reference table and formula.

Quick answer: To convert electron volts (eV) to joules, multiply by 1.60218e-19. For example, 1 electron volts (eV) = 1.60218e-19 joules. Use the calculator below for any value.
electron volts (eV) to joules
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Common conversions
electron volts (eV) joules
Formula:

How to convert electron volts (eV) to joules

1

Enter your value

Type the number of electron volts (ev) you want to convert into the left box. The result in joules appears instantly in the right box. You can also type into the right box to convert in the other direction.

2

Use the swap button

Click the ⇄ Swap button to reverse the conversion — joules to electron volts (eV). Your current value carries across so you don't have to re-enter anything.

3

About electron volts (eV) and joules

electron volts (eV) and joules are measurement units. Use this converter to switch between them instantly.

💡 Did you know?

1 eV = 1.602 × 10⁻¹⁹ J. Tiny but important: the energy of visible light photons is 1.6-3.5 eV. X-rays: 100 eV-100 keV. LHC proton collisions: ~13 TeV = 2.1 × 10⁻⁶ J — less than a flying mosquito, but in an incredibly small volume.

📊 Common conversions at a glance
electron volts (eV) joules
1 1.602e-19
100 1.602e-17
1000 1.602e-16
1000000.0 1.602e-13
1000000000.0 1.602e-10
1000000000000.0 1.602e-07
Reviewed for 2026. electron volts (eV) ↔ joules conversion factor verified against published reference data. Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project.