Question 1

What is 21 nm in eV?

Accepted Answer

21 nm = 59.0401 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 59.0401 eV in nm?

Accepted Answer

59.0401 eV = 21 nm.

nm	eV
15 nm	82.6561
17 nm	72.9319
19 nm	65.2548
21	59.0401
23 nm	53.9062
25 nm	49.5937
27 nm	45.9201

21 nm to eV

Formula