Atomic mass units to megaelectron volts
Type a value in u to get it in MeV instantly.
931.5MeV
That's 1,823× as much as an electron, while a proton is 1.01× more. That energy would run about 1.184×10⁻²⁰ homes for a year.
Convert the other way: MeV to u
What it means
How much energy is that?
This is the full rest energy. No process releases all of it: fission converts about 0.1% of the fuel’s mass, and chemical burning around a billionth.
The math
How to convert u to MeV
To convert atomic mass units to megaelectron volts, multiply by 931.494.
Example: 1 u × 931.494 = 931.494 MeV.
In the other direction, 1 MeV = 0.00107354 u.
Every unit
Your mass in every unit
Tables
u to MeV conversion table
| u | MeV |
|---|---|
| 1×10⁻³⁰ u | 9.315×10⁻²⁸ MeV |
| 1×10⁻²⁰ u | 9.315×10⁻¹⁸ MeV |
| 1×10⁻¹⁰ u | 9.315×10⁻⁸ MeV |
| 1×10⁻⁶ u | 0.000931494 MeV |
| 0.001 u | 0.931494 MeV |
| 1 u | 931.494 MeV |
| 10 u | 9,314.94 MeV |
| 1,000 u | 931,494 MeV |
| 1,000,000 u | 931,494,000 MeV |
MeV to u conversion table
| MeV | u |
|---|---|
| 1×10⁻³⁰ MeV | 1.074×10⁻³³ u |
| 1×10⁻²⁰ MeV | 1.074×10⁻²³ u |
| 1×10⁻¹⁰ MeV | 1.074×10⁻¹³ u |
| 1×10⁻⁶ MeV | 1.074×10⁻⁹ u |
| 0.001 MeV | 1.074×10⁻⁶ u |
| 1 MeV | 0.00107354 u |
| 10 MeV | 0.0107354 u |
| 1,000 MeV | 1.07354 u |
| 1,000,000 MeV | 1,073.54 u |
Quick answers
Quick answers
- How many MeV is 1 u?
- 1 u is 931.494 MeV.
- How many MeV is 10 u?
- 10 u is 9,314.94 MeV.
The units
About these units
Atomic mass units (u)
The nuclear physicist’s mass unit. One u is 931.5 MeV.
Megaelectron volts (MeV)
The nuclear scale. A proton is 938 MeV.
Keep going