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) = 1.853784e-31 Long Ton (UK) (ton (UK)).
| Muon Mass (mμ) | Long Ton (UK) (ton (UK)) |
|---|---|
| 0.1 | 1.853784e-32 |
| 0.5 | 9.268921e-32 |
| 1 | 1.853784e-31 |
| 2 | 3.707568e-31 |
| 5 | 9.268921e-31 |
| 10 | 1.853784e-30 |
| 25 | 4.634460e-30 |
| 50 | 9.268921e-30 |
| 100 | 1.853784e-29 |
| 500 | 9.268921e-29 |
| 1000 | 1.853784e-28 |
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 long ton (imperial ton) is a unit of mass equal to 2,240 pounds or approximately 1,016 kilograms.
1 long ton = 2,240 lb = 1,016.047 kg = 1.016 metric tonnes = 1.12 short tons.
To convert long tons to kg: multiply by 1,016.047. To convert long tons to short tons: multiply by 1.12.
Ship displacement tonnage (historical, some naval vessels still use it), and some UK agricultural contexts.
Naval ship displacement is traditionally given in long tons. HMS Titanic displaced about 52,310 long tons.
Assuming a 'ton' is a 'ton' — the long ton is 12% heavier than a short ton and 1.6% heavier than a metric tonne.
Easy memory: Long ton = British = 2,240 lb (long = larger). Short ton = US = 2,000 lb (short = smaller).



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