Question 1

What is 690 nm in eV?

Accepted Answer

690 nm = 1.7969 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 1.7969 eV in nm?

Accepted Answer

1.7969 eV = 689.9894 nm.

nm	eV
675 nm	1.8368
680 nm	1.8233
685 nm	1.81
690	1.7969
695 nm	1.7839
700 nm	1.7712
705 nm	1.7586

690 nm to eV

Formula