A stone is 14 pounds.
Stones to Decagrams Converter — st to dag
Convert Stone (st) to Decagram (dag) using the exact conversion factor (1 stone = 635.029318 decagram). See the formula, worked examples, conversion table, history, and common uses.
Stones to Decagrams 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.
Decagram is 10 gram units.
Result = input x 6.35029318 / 0.01.
Mass uses the kilogram as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones to Decagrams
Weight conversions between Stone and Decagram 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. Stone is most often used for body weight reporting in the uk and ireland (e.g. '12 stone 5 pounds').
Formula
decagrams = stones × 635.029318
This factor comes from each unit's defined relationship to the category's base unit: 1 stone equals 6.35029318 base units, and 1 decagram equals 0.01 base units, so dividing one by the other gives the direct stone-to-decagram factor of 635.029318.
Simple example
1 st × 635.029318 = 635.029318 dag
1 stone = 635.029318 decagrams.
Real-world example
50 st × 635.029318 = 31,751.4659 dag
50 stones = 31,751.4659 decagrams.
Conversion table
| Stone (st) | Decagram (dag) |
|---|---|
| 1 st | 635.029318 dag |
| 5 st | 3,175.14659 dag |
| 10 st | 6,350.29318 dag |
| 25 st | 15,875.73295 dag |
| 50 st | 31,751.4659 dag |
| 100 st | 63,502.9318 dag |
Reverse conversion: Decagram to Stone
635.029318 dag × 0.001574730444 = 1 st
635.029318 decagrams = 1 stone.
stones = decagrams × 0.00157473044418
For a page dedicated to this direction, see Decagram to Stone.
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.
Understanding the Decagram (dag)
Decagram is 10 gram units.
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 decagrams are in 1 stone?
1 stone equals 635.029318 decagrams, using the exact defined conversion factor rather than an estimate.
How do I convert stone to decagram?
Multiply the stone value by 635.029318. The converter above does this instantly to whatever precision you set.
How do I convert decagram back to stone?
Use the reverse factor: 1 decagram equals 0.0015747304 stones. You can also use the swap control in the converter above to flip the direction instantly.
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.
What is a decagram?
Decagram (dag) is a unit of mass/weight.
Is the stone to decagram 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.
Where is the stone still used today?
United Kingdom and Ireland (body weight)