This photon energy reference table shows the photon energy for a range of wavelength values. Every figure is computed with the same engine that powers our Photon Energy Calculator, so the numbers are exact.
| Wavelength | Photon energy | Energy (×10⁻¹⁹ J) |
|---|---|---|
| 130 nm | 9.5375 | 15.2807 |
| 250 nm | 4.9595 | 7.9460 |
| 380 nm | 3.2628 | 5.2276 |
| 500 nm | 2.4797 | 3.9730 |
| 750 nm | 1.6532 | 2.6487 |
| 1,000 nm | 1.2399 | 1.9865 |
| 1,500 nm | 0.8266 | 1.3243 |
| 2,500 nm | 0.4959 | 0.7946 |
| 3,500 nm | 0.3542 | 0.5676 |
| 5,000 nm | 0.2480 | 0.3973 |
How to use this table
Find the row closest to your wavelength and read across to the photon energy. For a value between two rows, the real figure sits between them — or enter your exact numbers in the Photon Energy Calculator for a precise answer.
Need a value that is not in the table? — the Photon Energy Calculator does it instantly, for free, with the formula and a worked example built in.
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