Convert Ounce to Stone (UK)
Convert ounces to stones (uk) instantly. 1 ounce = 0.0044642857 stone (uk) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Stone (UK) to Ounce converter for the reverse conversion.
Units explained
Ounce
The (avoirdupois) ounce (oz) equals one-sixteenth of a pound, about 28.35 grams.
From Latin 'uncia', meaning a twelfth part.
US food portions, postal weights, and boxing weight classes.
Standardized as 1/16 of the international pound from 1959.
Stone (UK)
The UK stone (st) equals 14 pounds, about 6.35 kilograms.
From standardized market 'stones' once used for weighing goods.
Body weight in the United Kingdom and Ireland.
Fixed at 14 pounds by British statute in 1835.
Ounce to Stone (UK) conversion formula
The relationship between ounces and stones (uk):
To convert ounces to stones (uk), multiply the value in ounces by 0.0044642857. To reverse, multiply stones (uk) by 224.0000001975.
How to use this converter
Type a value into the calculator. The result in stones (uk) 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 (UK) to Ounce converter for the reverse direction.
Step-by-step: convert ounces to stones (uk)
- Write down the value in ounces (oz).
- Multiply that value by the factor 0.0044642857.
- The product is the equivalent value in stones (uk) (st).
- To reverse, multiply the stone (uk) value by 224.0000001975.
Worked examples
Example 1 — Convert 1 oz to st:
1 × 0.0044642857 = 0.0044642857 st
Example 2 — Convert 100 oz to st:
100 × 0.0044642857 = 0.446428571 st
Real-world example — Furniture and large objects
A 72-ounce piece of furniture converts to a value in stones (uk) that's easier to mentally compare with room dimensions. This is the typical workflow when shopping internationally and product specs use a different unit than your room measurements.
72 oz × 0.0044642857 = 0.3214285711 st
Real-world example — Children's height milestones
A 150-ounce-tall child measures a value in stones (uk) that's commonly used for theme-park ride height requirements when travelling between countries that use different measurement units.
150 oz × 0.0044642857 = 0.6696428566 st
Real-world example — Body height conversion
You enter your height as 180 ounces into an international job or visa application. The form then asks for the same value in stones (uk) — converting between these adjacent units is one of the most-used length conversions globally.
180 oz × 0.0044642857 = 0.8035714279 st
Ounce to Stone (UK) conversion table
Standard reference values for converting ounces to stones (uk):
| Ounce [oz] | Stone (UK) [st] |
|---|---|
| 0.01 | 4.464286e-5 |
| 0.1 | 0.0004464286 |
| 1 | 0.0044642857 |
| 2 | 0.0089285714 |
| 3 | 0.0133928571 |
| 4 | 0.0178571428 |
| 5 | 0.0223214286 |
| 10 | 0.0446428571 |
| 20 | 0.0892857142 |
| 30 | 0.1339285713 |
| 40 | 0.1785714284 |
| 50 | 0.2232142855 |
| 100 | 0.446428571 |
| 500 | 2.2321428552 |
| 1000 | 4.4642857103 |
Frequently asked questions
How many stones (uk) is 1 ounce?
How do I convert ounces to stones (uk)?
How do I convert stones (uk) back to ounces?
How many stones (uk) is 100 ounces?
Popular weight unit conversions
Convert Ounce to other weight units
Show all Ounce 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 oz = 0.0044642857 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.