Instant · Precise · Universal
34 units available
6 categories total
To convert neutron masses to kg: multiply by 1.67492749804 × 10⁻²⁷.
mn = mp + 1.293 MeV/c². About 0.14% heavier than a proton.
For example, 1 Neutron Mass (mn) = 0.5009377997 Deuteron Mass (md).
| Neutron Mass (mn) | Deuteron Mass (md) |
|---|---|
| 0.1 | 0.05009377997 |
| 0.5 | 0.2504688998 |
| 1 | 0.5009377997 |
| 2 | 1.001875599 |
| 5 | 2.504688998 |
| 10 | 5.009377997 |
| 25 | 12.52344499 |
| 50 | 25.04688998 |
| 100 | 50.09377997 |
| 500 | 250.4688998 |
| 1000 | 500.9377997 |
The neutron mass is the rest mass of a neutron, approximately 1.675 × 10⁻²⁷ kilograms, slightly heavier than a proton.
mn = mp + 1.293 MeV/c². About 0.14% heavier than a proton.
To convert neutron masses to kg: multiply by 1.67492749804 × 10⁻²⁷.
Nuclear reactor design, neutron radiography, and neutron activation analysis for material composition.
A free neutron decays into a proton, electron, and antineutrino in about 14.7 minutes. Inside a nucleus, it can be stable for billions of years.
Assuming neutrons and protons have exactly the same mass — the neutron is 0.14% heavier, which is critical for nuclear stability.
The mn > mp mass difference allows neutron beta decay (n → p + e⁻ + ν̄ₑ). Without it, atomic nuclei as we know them wouldn't exist.
The deuteron mass is the mass of a deuterium nucleus (one proton + one neutron), approximately 3.344 × 10⁻²⁷ kilograms.
md < mp + mn by 2.224 MeV/c² (the binding energy). This 'mass defect' represents nuclear binding energy.
To convert deuteron masses to kg: multiply by 3.3435837724 × 10⁻²⁷.
Fusion energy research (deuterium-tritium and deuterium-deuterium reactions), NMR/MRI, and neutron production targets.
The deuteron's binding energy (2.224 MeV) is quite small, making it the most weakly bound stable nucleus.
Assuming md = mp + mn exactly — the mass defect (binding energy) makes the deuteron slightly lighter than the sum.
The deuteron is the simplest nucleus with more than one nucleon. Its binding energy (2.224 MeV) is E=mc² in action.



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