Question 1

What is 720 nm in eV?

Accepted Answer

720 nm = 1.722 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 1.722 eV in nm?

Accepted Answer

1.722 eV = 720.0012 nm.

nm	eV
705 nm	1.7586
710 nm	1.7463
715 nm	1.734
720	1.722
725 nm	1.7101
730 nm	1.6984
735 nm	1.6869

720 nm to eV

Formula