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Electronvolt to Joule Converter
Converts electronvolt to joule instantly. One electronvolt equals 1.602177e-19 joule. Includes a reference table and the reverse conversion.
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Enter a value to convert.
In short
One electronvolt equals 1.602177e-19 joule. To convert electronvolt to joule, multiply by 1.602177e-19. To go the other way, multiply joule by 6.241509e+18. So 5 electronvolt is 8.010883e-19 joule, 10 is 1.602177e-18 and 100 is 1.602177e-17. Both units measure energy and work, so the conversion is a single exact multiplication with no offset — the same factor works in a spreadsheet or in code.
How to use the Electronvolt to Joule Converter
- Type the value you want to convert.
- Pick the unit you are converting from and the unit you want.
- The converted value and the exact conversion factor are shown instantly.
About the Electronvolt to Joule Converter
The Electronvolt to Joule Converter converts electronvolt to joule instantly. One electronvolt equals 1.602177e-19 joule. Includes a reference table and the reverse conversion. It runs as plain JavaScript inside the page, which means there is no upload step, no queue and no size limit imposed by a server — the only limit is your own device.
What people use it for
- Converting a single electronvolt figure without opening a spreadsheet.
- Checking a specification written in electronvolt against equipment rated in joule.
- Getting the factor itself so you can reuse it in a formula.
Details
| 1 Electronvolt | 1.602177e-19 Joule |
|---|---|
| 1 Joule | 6.241509e+18 Electronvolt |
| Conversion type | Exact multiplication — no offset needed |
| Measures | Energy and work |
The maths behind it
This tool uses joule = electronvolt × 1.602177e-19, because both units are defined against the Joule. Every intermediate value is shown on screen, so the result can be checked by hand.
Frequently asked questions
Is there a limit on how often I can use the Electronvolt to Joule Converter?
Free, unlimited, and no email address required. You can use it a hundred times a day and nothing changes.
Is what I paste into the Electronvolt to Joule Converter stored?
No. The Electronvolt to Joule Converter runs entirely in your browser using JavaScript. Because the work happens locally, the page also keeps working if your connection drops, and closing the tab is all it takes to discard everything.
How is the result calculated?
It uses joule = electronvolt × 1.602177e-19, because both units are defined against the Joule. The full working is printed under the result, so you can follow every step rather than trusting a black box.
What do I get if I try it?
Enter 10 electronvolt and the Electronvolt to Joule Converter returns 1.602177e-18 joule.
What do people use the Electronvolt to Joule Converter for most?
The jobs it is built for: converting a single electronvolt figure without opening a spreadsheet. Checking a specification written in electronvolt against equipment rated in joule. Getting the factor itself so you can reuse it in a formula. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
What figures does the Electronvolt to Joule Converter work from?
1 Electronvolt is 1.602177e-19 Joule. 1 Joule is 6.241509e+18 Electronvolt. Conversion type is Exact multiplication — no offset needed. These are printed on the page itself, so you do not have to take them on trust.
How precise is the result?
The calculation runs in double precision and the result is shown to ten significant figures, so converting a value and converting it back returns the original. What is displayed is rounded for readability; what is copied is not.
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