Question 1

What is 309.5 nm in eV?

Accepted Answer

309.5 nm = 4.006 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 4.006 eV in nm?

Accepted Answer

4.006 eV = 309.4963 nm.

nm	eV
294.5 nm	4.21
299.5 nm	4.1397
304.5 nm	4.0717
309.5 nm	4.006
314.5 nm	3.9423
319.5 nm	3.8806
324.5 nm	3.8208

309.5 nm to eV

Formula