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Electronvolt to Joule
Convert Electronvolt to Joule and get the exact value instantly.
About this conversion
To convert Electronvolt to Joule, multiply the number of Electronvolt by 1.602177e-19.
Energy shows up as joules, calories, kilowatt-hours or BTU depending on the field (nutrition, an electricity bill, heating or physics), so a conversion makes the numbers comparable.
Conversion table
| Electronvolt (eV) | Joule (J) |
|---|---|
| 1 eV | 1.602177e-19 J |
| 2 eV | 3.204353e-19 J |
| 5 eV | 8.010883e-19 J |
| 10 eV | 1.602177e-18 J |
| 100 eV | 1.602177e-17 J |
How to use this converter
- Enter your Electronvolt value
Type any number into the Electronvolt field. It starts at 1 so you can read the rate straight away.
- Read the Joule result
The amount in Joule updates as you type, so there is no button to press and nothing to wait for.
- Swap or keep exploring
Use the swap control to flip the direction, or pick a related conversion from the list below.
Frequently asked
- How many Joule are in one Electronvolt?
- One Electronvolt equals 1.602177e-19 J. Enter any amount above to get an exact figure for your own value.
- Is this converter accurate?
- Yes. It uses the exact international definition of each unit and computes on your device, so the only rounding is for display.
- Do you upload the numbers I enter?
- No. The Electronvolt to Joule conversion runs entirely in your browser tab, and nothing you type is sent to a server.
- Does it work on my phone?
- Yes. It runs in any modern mobile browser and keeps working offline once the page has loaded.
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