Question 1

What is 561 nm in eV?

Accepted Answer

561 nm = 2.2101 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 2.2101 eV in nm?

Accepted Answer

2.2101 eV = 560.9891 nm.

nm	eV
546 nm	2.2708
551 nm	2.2502
556 nm	2.2299
561	2.2101
566 nm	2.1905
571 nm	2.1714
576 nm	2.1525

561 nm to eV

Formula