Question 1

What is 400 nm in eV?

Accepted Answer

400 nm = 3.0996 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 3.0996 eV in nm?

Accepted Answer

3.0996 eV = 400.0006 nm.

nm	eV
385 nm	3.2204
390 nm	3.1791
395 nm	3.1388
400	3.0996
405 nm	3.0613
410 nm	3.024
415 nm	2.9876

400 nm to eV

Formula