Einstein's equation

Given that 1u has a mass of 1.65511×10-27kg, we can calculate the energy of 1u.

E = mc2 = (1.65511×10-27) × (3.0×108)2 J
= 1.489599 × 10-10 J

However, 1eV = 1.6×10-19J, so

E = 1.48959 × 10-10 / 1.6×10-19 eV
= 9.31 × 108 eV
= 931 MeV

 

 

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