Question 1

What is 440 nm in eV?

Accepted Answer

440 nm = 2.8178 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 2.8178 eV in nm?

Accepted Answer

2.8178 eV = 440.0035 nm.

nm	eV
425 nm	2.9173
430 nm	2.8834
435 nm	2.8502
440	2.8178
445 nm	2.7862
450 nm	2.7552
455 nm	2.7249

440 nm to eV

Formula