Electronvolts to nanometers
Type a value in eV to get it in nm instantly.
2.254nm
That's 2.3× as long as an x-ray, while ultraviolet is 133× longer. That is outside human vision, at 550 eV per photon.
Convert the other way: nm to eV
What it means
What color is that?
Wavelengths are for a vacuum. In glass or water light slows down and the wavelength shortens, while the frequency stays put.
The math
How to convert eV to nm
Wavelength, frequency and energy are linked by λ × f = c and E(eV) = 1239.84 ÷ λ(nm), so shorter waves carry more energy.
Example: 550 eV = 2.25426 nm.
Every unit
Your light in every unit
Tables
eV to nm conversion table
| eV | nm |
|---|---|
| 200 eV | 6.19921 nm |
| 300 eV | 4.13281 nm |
| 400 eV | 3.0996 nm |
| 450 eV | 2.7552 nm |
| 500 eV | 2.47968 nm |
| 550 eV | 2.25426 nm |
| 600 eV | 2.0664 nm |
| 650 eV | 1.90745 nm |
| 700 eV | 1.7712 nm |
| 800 eV | 1.5498 nm |
| 1,000 eV | 1.23984 nm |
| 1,550 eV | 0.799898 nm |
nm to eV conversion table
| nm | eV |
|---|---|
| 200 nm | 6.19921 eV |
| 300 nm | 4.13281 eV |
| 400 nm | 3.0996 eV |
| 450 nm | 2.7552 eV |
| 500 nm | 2.47968 eV |
| 550 nm | 2.25426 eV |
| 600 nm | 2.0664 eV |
| 650 nm | 1.90745 eV |
| 700 nm | 1.7712 eV |
| 800 nm | 1.5498 eV |
| 1,000 nm | 1.23984 eV |
| 1,550 nm | 0.799898 eV |
Quick answers
Quick answers
- How many nm is 1 eV?
- 1 eV is 1,239.84 nm.
- How many nm is 10 eV?
- 10 eV is 123.984 nm.
- How many nm is 550 eV?
- 550 eV is 2.25426 nm.
The units
About these units
Electronvolts (eV)
Photon energy. Visible light is 1.6 to 3.3 eV; x-rays are thousands.
Nanometers (nm)
The standard unit for light: visible colors run from 380 to 750 nm.
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