Instant · Precise · Universal
34 units available
6 categories total
To convert muon masses to kg: multiply by 1.883531627 × 10⁻²⁸.
mμ ≈ 206.77 × mₑ ≈ 0.1126 × mₚ (proton mass) = 105.66 MeV/c².
For example, 1 Muon Mass (mμ) = 0.1134289259 Atomic Mass Unit (u).
| Muon Mass (mμ) | Atomic Mass Unit (u) |
|---|---|
| 0.1 | 0.01134289259 |
| 0.5 | 0.05671446294 |
| 1 | 0.1134289259 |
| 2 | 0.2268578518 |
| 5 | 0.5671446294 |
| 10 | 1.134289259 |
| 25 | 2.835723147 |
| 50 | 5.671446294 |
| 100 | 11.34289259 |
| 500 | 56.71446294 |
| 1000 | 113.4289259 |
The muon mass is the rest mass of the muon particle, approximately 1.884 × 10⁻²⁸ kilograms or about 207 times the electron mass.
mμ ≈ 206.77 × mₑ ≈ 0.1126 × mₚ (proton mass) = 105.66 MeV/c².
To convert muon masses to kg: multiply by 1.883531627 × 10⁻²⁸.
Muon tomography (imaging volcanoes, pyramids), muon-catalyzed fusion, and cosmic ray detection.
The muon's discovery prompted physicist I.I. Rabi to quip 'Who ordered that?' — it was completely unexpected.
Muons are not mesons — they're leptons (like electrons), not quark-antiquark pairs.
Think of a muon as a 'fat electron' — same charge, same spin, but 207× heavier. It decays in about 2.2 microseconds.
The atomic mass unit (unified) is defined as 1/12 the mass of a carbon-12 atom, approximately 1.661 × 10⁻²⁷ kilograms.
1 u = 1.6605390666 × 10⁻²⁷ kg = 1/Nₐ grams ≈ 931.494 MeV/c².
To convert u to kg: multiply by 1.6605390666 × 10⁻²⁷. To convert u to MeV/c²: multiply by 931.494.
Molecular weight calculations, mass spectrometry data interpretation, and chemical stoichiometry.
A proton has a mass of ~1.007 u, a neutron ~1.009 u. The discrepancy from 1.000 reflects nuclear binding energy.
Confusing 'amu' (the old, obsolete term) with 'u' (the unified standard). Also, forgetting that 1 u ≠ 1 gram.
Think of u as 'approximately the mass of one proton or neutron.' Carbon-12 = 12 u exactly (by definition).



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