Question 1

What is 642 eV in nm?

Accepted Answer

642 eV = 1.9312 nm. Use the converter on this page to convert to other photon energy units instantly.

Question 2

How do you convert eV to nm?

Accepted Answer

Formula: E(eV) = 1239.84 ÷ λ(nm) · f(THz) = E(eV) × 241.799 · E = hc/λ = hf. Multiply your eV value by the appropriate factor to get nm, or use the interactive converter above.

Question 3

What is 1.9312 nm in eV?

Accepted Answer

1.9312 nm = 642.006 eV.

eV	nm
627 eV	1.9774
632 eV	1.9618
637 eV	1.9464
642	1.9312
647 eV	1.9163
652 eV	1.9016
657 eV	1.8871

642 eV to nm

Formula