An Imperial long ton equals exactly 2,240 pounds (1,016.0469 kg).
Definition & Scientific Metrology
The long ton (or British ton) is traditional in the UK and Commonwealth. It is defined as 20 hundredweight of 112 lbs each (2,240 lbs).
SI Kilogram Base Factor
1 ton (UK) =
1016.0469088 kgOrigins & Historical Evolution
Originated in medieval England based on 160 stones (160 × 14 lbs = 2,240 lbs).
1 Long Ton (Imperial Ton) in Other Mass Units
Direct standard conversion equivalents for 1 ton (UK):
| Target Unit | Equivalent Value | Multiplier Equation |
|---|---|---|
| Pounds (lbs) | 2,240 | 1 ton (UK) × 2240 |
| Kilograms (kg) | 1,016.047 | 1 ton (UK) × 1016.0469 |
| Metric Tons (t) | 1.016 | 1 ton (UK) × 1.016047 |
| US Short Tons | 1.12 | 1 ton (UK) × 1.12 |
Common Real-World Applications
- Historical naval displacement tonnage (e.g. Washington Naval Treaty)
- Traditional British heavy commodities
Did You Know?
Interesting Metrology Facts
The long ton is only 1.6% heavier than a modern metric ton (1,016 kg vs 1,000 kg).
Battleship armor and warship sizes were historically rated in Imperial Long Tons.
Measurement Standards & Accuracy
Standard MultipliersFactors based on the 1959 International Yard and Pound Agreement and NIST SP 811.
Sources
- BIPM International Metrology Treaty
- NIST Guide for SI Units
- ISO 80000-4 Quantities and Units — Mass
Accuracy & Policy
Standard Exact Multipliers (e.g., 1 lb = 0.45359237 kg)
Related Tools & Resources for Long Ton (Imperial Ton)
Discover calculation widgets, unit comparisons, and printable lookup sheets for ton (UK):
Unit Encyclopedia
Calculators
Weight Difference Calculator (Absolute & Percentage Gap)Weight Difference Calculator (Absolute & Percentage Gap) calculation tool
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Weight Percentage Calculator (Mass Proportion & Share Tool)Weight Percentage Calculator (Mass Proportion & Share Tool) calculation tool
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Weight Increase Calculator (Gain & Percentage Growth)Weight Increase Calculator (Gain & Percentage Growth) calculation tool
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Guides & Formulas
How to Convert Kilograms to Pounds (kg to lbs): Step-by-Step GuideConversion guide & practical formula
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How to Convert Pounds to Kilograms (lbs to kg): The Complete GuideConversion guide & practical formula
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How to Convert Grams to Ounces (g to oz): Baking & Kitchen GuideConversion guide & practical formula
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