Convert Quarter (UK) to Stone (US)
Convert quarters (uk) to stones (us) instantly. 1 quarter (uk) = 2.24 stone (us) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Stone (US) to Quarter (UK) converter for the reverse conversion.
Units explained
Quarter (UK)
The UK quarter equals one-fourth of a long hundredweight, 28 pounds (about 12.7 kg).
A 'quarter' of the hundredweight in the British imperial system.
Historical British trade in coal, grain, and agricultural goods.
Defined within the imperial hundredweight system.
Stone (US)
A less common US definition of the stone, about 5.67 kilograms.
A variant stone weight used in some historical US trade.
Rare; appears mainly in historical or specialized contexts.
Derived from older English stone weights that varied by commodity.
Quarter (UK) to Stone (US) conversion formula
The relationship between quarters (uk) and stones (us):
To convert quarters (uk) to stones (us), multiply the value in quarters (uk) by 2.24. To reverse, multiply stones (us) by 0.4464285714.
How to use this converter
Type a value into the calculator. The result in stones (us) updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Stone (US) to Quarter (UK) converter for the reverse direction.
Step-by-step: convert quarters (uk) to stones (us)
- Write down the value in quarters (uk) (qr).
- Multiply that value by the factor 2.24.
- The product is the equivalent value in stones (us) (st).
- To reverse, multiply the stone (us) value by 0.4464285714.
Worked examples
Example 1 — Convert 1 qr to st:
1 × 2.24 = 2.24 st
Example 2 — Convert 100 qr to st:
100 × 2.24 = 224 st
Quarter (UK) to Stone (US) conversion table
Standard reference values for converting quarters (uk) to stones (us):
| Quarter (UK) [qr] | Stone (US) [st] |
|---|---|
| 0.01 | 0.0224 |
| 0.1 | 0.224 |
| 1 | 2.24 |
| 2 | 4.48 |
| 3 | 6.72 |
| 4 | 8.96 |
| 5 | 11.2 |
| 10 | 22.4 |
| 20 | 44.8 |
| 30 | 67.2 |
| 40 | 89.6 |
| 50 | 112 |
| 100 | 224 |
| 500 | 1120 |
| 1000 | 2240 |
Frequently asked questions
How many stones (us) is 1 quarter (uk)?
How do I convert quarters (uk) to stones (us)?
How do I convert stones (us) back to quarters (uk)?
How many stones (us) is 100 quarters (uk)?
Popular weight unit conversions
Convert Quarter (UK) to other weight units
Show all Quarter (UK) conversions
Metric / SI (18 units)
Avoirdupois (14 units)
Troy & Apothecary (10 units)
Indian / South Asian (6 units)
Scientific / Atomic (9 units)
Astronomical (4 units)
Biblical / Ancient (14 units)
Sources & references
Conversion factor (1 qr = 2.24 st) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.