Question 1

What is 221 nm in eV?

Accepted Answer

221 nm = 5.6101 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 5.6101 eV in nm?

Accepted Answer

5.6101 eV = 221.0018 nm.

nm	eV
206 nm	6.0187
211 nm	5.876
216 nm	5.74
221	5.6101
226 nm	5.486
231 nm	5.3673
236 nm	5.2536

221 nm to eV

Formula