Convert Troy Ounce to Stone (UK)
Convert troy ounces to stones (uk) instantly. 1 troy ounce = 0.0048979592 stone (uk) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Stone (UK) to Troy Ounce converter for the reverse conversion.
Units explained
Troy Ounce
The troy ounce (ozt) equals about 31.103 grams, one-twelfth of a troy pound.
From the Troy system of weights associated with Troyes, France.
The global standard for pricing gold, silver, platinum, and palladium.
Established in the medieval Troy system and retained for precious metals.
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.
Troy Ounce to Stone (UK) conversion formula
The relationship between troy ounces and stones (uk):
To convert troy ounces to stones (uk), multiply the value in troy ounces by 0.0048979592. To reverse, multiply stones (uk) by 204.1666666667.
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 Troy Ounce converter for the reverse direction.
Step-by-step: convert troy ounces to stones (uk)
- Write down the value in troy ounces (oz t).
- Multiply that value by the factor 0.0048979592.
- The product is the equivalent value in stones (uk) (st).
- To reverse, multiply the stone (uk) value by 204.1666666667.
Worked examples
Example 1 — Convert 1 oz t to st:
1 × 0.0048979592 = 0.0048979592 st
Example 2 — Convert 100 oz t to st:
100 × 0.0048979592 = 0.4897959184 st
Real-world example — Children's height milestones
A 150-troy 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 t × 0.0048979592 = 0.7346938776 st
Real-world example — Body height conversion
You enter your height as 180 troy 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 t × 0.0048979592 = 0.8816326531 st
Real-world example — Furniture and large objects
A 72-troy 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 t × 0.0048979592 = 0.3526530612 st
Troy Ounce to Stone (UK) conversion table
Standard reference values for converting troy ounces to stones (uk):
| Troy Ounce [oz t] | Stone (UK) [st] |
|---|---|
| 0.01 | 4.897959e-5 |
| 0.1 | 0.0004897959 |
| 1 | 0.0048979592 |
| 2 | 0.0097959184 |
| 3 | 0.0146938776 |
| 4 | 0.0195918367 |
| 5 | 0.0244897959 |
| 10 | 0.0489795918 |
| 20 | 0.0979591837 |
| 30 | 0.1469387755 |
| 40 | 0.1959183673 |
| 50 | 0.2448979592 |
| 100 | 0.4897959184 |
| 500 | 2.4489795918 |
| 1000 | 4.8979591837 |
Frequently asked questions
How many stones (uk) is 1 troy ounce?
How do I convert troy ounces to stones (uk)?
How do I convert stones (uk) back to troy ounces?
How many stones (uk) is 100 troy ounces?
Popular weight unit conversions
Convert Troy Ounce to other weight units
Show all Troy Ounce conversions
Metric / SI (18 units)
Avoirdupois (15 units)
Troy & Apothecary (9 units)
Indian / South Asian (6 units)
Scientific / Atomic (9 units)
Astronomical (4 units)
Biblical / Ancient (14 units)
Sources & references
Conversion factor (1 oz t = 0.0048979592 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.