Question 1

What is 490 nm in eV?

Accepted Answer

490 nm = 2.5303 eV. Use the converter on this page to convert to other photon energy units instantly.

Question 2

How do you convert nm to eV?

Accepted Answer

Formula: E(eV) = 1239.84 ÷ λ(nm) · f(THz) = E(eV) × 241.799 · E = hc/λ = hf. Multiply your nm value by the appropriate factor to get eV, or use the interactive converter above.

Question 3

What is 2.5303 eV in nm?

Accepted Answer

2.5303 eV = 489.998 nm.

nm	eV
475 nm	2.6102
480 nm	2.583
485 nm	2.5564
490	2.5303
495 nm	2.5047
500 nm	2.4797
505 nm	2.4551

490 nm to eV

Formula