Convert Stone to Troy Ounces
1 stone (st) equals 204.1666667 troy ounces (oz t).
1 st = 204.1666667 oz t
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk stone to troy ounce converter to paste a column from Excel.
How to Convert Stone to Troy Ounce
- 1 st = 204.1666667 oz t
- 1 oz t = 0.004897959184 st
- Example: convert 15 st to oz t: 15 st = 15 × 204.1666667 oz t = 3062.5 oz t
Reference conditions. st: Avoirdupois system: 1 lb = 16 oz = 7000 grains = 0.45359237 kg exactly (1959 agreement).
Formula
oz t = st × 204.1666666667
Derivation from SI units:
- 1 st = 14 lb = 6.35029318 kg (exact)
- 1 oz t = 480 gr = 31.1034768 g (exact)
- 1 st = 6.35029318 kg ÷ 0.0311034768 kg per oz t = 204.1666666667 oz t
Both units are defined exactly, so the factor is exact. Stone definition: stone; Troy Ounce definition: troy ounce.
Worked examples
- A reading of 10 st converts to 2041.666667 oz t.
10 st × 204.1666667 = 2041.666667 oz t - A value of 14 st is 2858.333333 oz t.
14 st × 204.1666667 = 2858.333333 oz t
Stone to Troy Ounce conversion table
| Stone (st) | Troy Ounces (oz t) |
|---|---|
| 1 st | 204.1666667 oz t |
| 5 st | 1020.833333 oz t |
| 7 st | 1429.166667 oz t |
| 8 st | 1633.333333 oz t |
| 9 st | 1837.5 oz t |
| 10 st | 2041.666667 oz t |
| 10.5 st | 2143.75 oz t |
| 11 st | 2245.833333 oz t |
| 12 st | 2450 oz t |
| 13 st | 2654.166667 oz t |
| 14 st | 2858.333333 oz t |
| 15 st | 3062.5 oz t |
| 16 st | 3266.666667 oz t |
| 18 st | 3675 oz t |
| 20 st | 4083.333333 oz t |
Where it's used
Stone are used for body weight in the UK and Ireland (e.g. 11 st 6 lb), while troy ounces appear in gold, silver and platinum prices. Both measure mass (commonly called weight), so the conversion is a fixed factor.
Stone to other weight and mass units
| Conversion | 1 st equals |
|---|---|
| stone to kilogram | 6.35029318 kg |
| stone to gram | 6350.29318 g |
| stone to milligram | 6350293.18 mg |
| stone to microgram | 6350293180 µg |
| stone to metric ton | 0.00635029318 t |
| stone to pound | 14 lb |
| stone to ounce | 224 oz |
| stone to short ton | 0.007 ton (US) |
| stone to long ton | 0.00625 ton (UK) |
| stone to grain | 98000 gr |
| stone to troy ounce | 204.1666667 oz t |
| stone to carat | 31751.4659 ct |
Frequently asked questions
How many troy ounces are in 1 stone?
1 st = 204.1666667 oz t.
How do I convert stone to troy ounces?
Multiply the value in st by 204.1666667. For example, 15 st × 204.1666667 = 3062.5 oz t.
Is the st to oz t conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, pound (avoirdupois).
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "ounce (troy or apothecary)".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Stone to Troy Ounces. Retrieved October 17, 2026, from https://scientificconverters.com/mass/stone-to-troy-ounces/
IEEE
Scientific Converters, "Convert Stone to Troy Ounces," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/mass/stone-to-troy-ounces/