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) = 1.674927e-36 Teragram (Tg).
| Neutron Mass (mn) | Teragram (Tg) |
|---|---|
| 0.1 | 1.674927e-37 |
| 0.5 | 8.374637e-37 |
| 1 | 1.674927e-36 |
| 2 | 3.349855e-36 |
| 5 | 8.374637e-36 |
| 10 | 1.674927e-35 |
| 25 | 4.187319e-35 |
| 50 | 8.374637e-35 |
| 100 | 1.674927e-34 |
| 500 | 8.374637e-34 |
| 1000 | 1.674927e-33 |
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 teragram equals 10¹² grams or one million tonnes (one megatonne).
1 Tg = 10¹² g = 10⁹ kg = 10⁶ tonnes = 1 megatonne.
To convert Tg to tonnes: multiply by 10⁶. To convert Tg to Gg: multiply by 1,000.
Global carbon budgets (~10,000 Tg C/year from fossil fuels), volcanic eruption plume masses.
Earth's atmosphere has a total mass of about 5.15 × 10⁶ Tg (5.15 × 10¹⁸ kg).
Confusing Tg with Pg (petagram): 1 Pg = 1,000 Tg. Climate papers use both — check carefully.
Global CO₂ emissions ≈ 36,000 Tg/year (or 36 Pg/year). This is a key climate number to remember.



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