Question 1

What is 1,240 nm in eV?

Accepted Answer

1,240 nm = 0.9999 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 0.9999 eV in nm?

Accepted Answer

0.9999 eV = 1,239.966 nm.

nm	eV
1,225 nm	1.0121
1,230 nm	1.008
1,235 nm	1.0039
1,240	0.9999
1,245 nm	0.9959
1,250 nm	0.9919
1,255 nm	0.9879

1,240 nm to eV

Formula