Instant · Precise · Universal
34 units available
6 categories total
To convert long tons to kg: multiply by 1,016.047. To convert long tons to short tons: multiply by 1.12.
1 long ton = 2,240 lb = 1,016.047 kg = 1.016 metric tonnes = 1.12 short tons.
For example, 1 Long Ton (UK) (ton (UK)) = 6.118778e+29 Atomic Mass Unit (u).
| Long Ton (UK) (ton (UK)) | Atomic Mass Unit (u) |
|---|---|
| 0.1 | 6.118778e+28 |
| 0.5 | 3.059389e+29 |
| 1 | 6.118778e+29 |
| 2 | 1.223756e+30 |
| 5 | 3.059389e+30 |
| 10 | 6.118778e+30 |
| 25 | 1.529694e+31 |
| 50 | 3.059389e+31 |
| 100 | 6.118778e+31 |
| 500 | 3.059389e+32 |
| 1000 | 6.118778e+32 |
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).
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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