Question 1

What is 420 nm in eV?

Accepted Answer

420 nm = 2.952 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 2.952 eV in nm?

Accepted Answer

2.952 eV = 420.0007 nm.

nm	eV
405 nm	3.0613
410 nm	3.024
415 nm	2.9876
420	2.952
425 nm	2.9173
430 nm	2.8834
435 nm	2.8502

420 nm to eV

Formula