Question 1

What is 278.5 nm in eV?

Accepted Answer

278.5 nm = 4.4519 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 4.4519 eV in nm?

Accepted Answer

4.4519 eV = 278.4973 nm.

nm	eV
263.5 nm	4.7053
268.5 nm	4.6177
273.5 nm	4.5332
278.5	4.4519
283.5 nm	4.3733
288.5 nm	4.2975
293.5 nm	4.2243

278.5 nm to eV

Formula