Question 1

What is 399 nm in eV?

Accepted Answer

399 nm = 3.1074 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 3.1074 eV in nm?

Accepted Answer

3.1074 eV = 398.9966 nm.

nm	eV
384 nm	3.2288
389 nm	3.1873
394 nm	3.1468
399	3.1074
404 nm	3.0689
409 nm	3.0314
414 nm	2.9948

399 nm to eV

Formula