A British long ton is 2,240 pounds.
Long tons to Stones Converter — long ton to st
Convert Long ton (long ton) to Stone (st) using the exact conversion factor (1 long ton = 160 stone). See the formula, worked examples, conversion table, history, and common uses.
Long tons to Stones converter
Converter
Mass/Weight Converter
Convert SI mass, imperial weight, jewelry, atomic, and astronomy mass units.
Context values
Some unit families need one extra value for a physically accurate result.
A stone is 14 pounds.
Result = input x 1016.046909 / 6.35029318.
Mass uses the kilogram as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Long tons to Stones
Weight conversions between Long ton and Stone come up constantly in everyday commerce, shipping, and cooking, since US packaging is usually labeled in pounds while most of the rest of the world uses kilograms. Specifically: A British long ton is 2,240 pounds, and a stone is 14 pounds.
Formula
stones = long tons × 160
This factor comes from each unit's defined relationship to the category's base unit: 1 long ton equals 1016.0469088 base units, and 1 stone equals 6.35029318 base units, so dividing one by the other gives the direct long ton-to-stone factor of 160.
Simple example
1 long ton × 160 = 160 st
1 long ton = 160 stones.
Real-world example
50 long ton × 160 = 8,000 st
50 long tons = 8,000 stones.
Conversion table
| Long ton (long ton) | Stone (st) |
|---|---|
| 1 long ton | 160 st |
| 5 long ton | 800 st |
| 10 long ton | 1,600 st |
| 25 long ton | 4,000 st |
| 50 long ton | 8,000 st |
| 100 long ton | 16,000 st |
Reverse conversion: Stone to Long ton
160 st × 0.00625 = 1 long ton
160 stones = 1 long tons.
long tons = stones × 0.00625
For a page dedicated to this direction, see Stone to Long ton.
Understanding the Long ton (long ton)
A British long ton is 2,240 pounds.
Understanding the Stone
Stone (st) measures mass. A stone is 14 pounds: exactly 6.35029318 kilograms. It is classified as a UK customary unit.
Where it's used: United Kingdom and Ireland (body weight)
Uses of the Stone today
- Body weight reporting in the UK and Ireland (e.g. '12 stone 5 pounds')
- Historical wool and agricultural produce weighing
History of the Stone
The stone dates to medieval England as a general-purpose weight unit, historically varying by region and commodity (a 'stone' of wool differed from a 'stone' of meat) before settling on 14 pounds for general use. It remains in everyday use for body weight in the UK and Ireland, unlike most other English customary units which have been replaced or supplemented by metric measures.
Historical origin. Stone was not the invention of a single named person; it developed through the process described above.
Stone — sources
- UK Weights and Measures Act 1985 — Confirms the stone (14 lb) as a legally recognized UK unit for body weight.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones are in 1 long ton?
1 long ton equals 160 stones, using the exact defined conversion factor rather than an estimate.
How do I convert long ton to stone?
Multiply the long ton value by 160. The converter above does this instantly to whatever precision you set.
How do I convert stone back to long ton?
Use the reverse factor: 1 stone equals 0.00625 long tons. You can also use the swap control in the converter above to flip the direction instantly.
What is a long ton?
Long ton (long ton) is a unit of mass/weight.
What is a stone?
Stone (st) measures mass. A stone is 14 pounds: exactly 6.35029318 kilograms. It is classified as a UK customary unit.
Is the long ton to stone conversion exact?
Yes. A stone is 14 pounds: exactly 6.35029318 kilograms. That fixed definition is what the converter above uses, so any rounding you see is a display choice, not a limitation of the math.