Stone to Troy Ounce Conversion Calculator: Free Online Tool
Convert stones to troy ounces with our free online weight converter.
Stone to Troy Ounce Calculator
How to Use the Calculator:
- Enter the value you want to convert in the 'From' field (Stone).
- The converted value in Troy Ounce will appear automatically in the 'To' field.
- Use the dropdown menus to select different units within the Weight category.
- Click the swap button (⇌) to reverse the conversion direction.
How to Convert Stone to Troy Ounce
Converting Stone to Troy Ounce involves multiplying the value by a specific conversion factor, as shown in the formula below.
Formula:
1 Stone = 204.167 troy ouncesExample Calculation:
Convert 5 stones: 5 × 204.167 = 1020.84 troy ounces
Disclaimer: For Reference Only
These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.
Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.
What is a Stone and a Troy Ounce?
The stone (st) is a unit of mass in the British imperial system, defined as exactly 14 avoirdupois pounds. This is equivalent to approximately 6.35 kilograms.
The troy ounce (oz t) is a unit of mass traditionally used for precious metals (like gold, silver, platinum) and sometimes gemstones. It is defined as exactly 31.1034768 grams.
Note: The Stone is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Troy Ounce belongs to the imperial/US customary system.
History of the Stone and Troy Ounce
The stone has historical roots in trade, where actual stones were used as weights. Its value varied significantly by commodity and region before being standardized at 14 pounds in Britain for general purposes.
The troy weight system likely originated in Troyes, France, a major trading town in the Middle Ages. It became a standard in England for precious metals and coinage. Unlike the more common avoirdupois ounce (approx. 28.35 g), the troy ounce persists in the precious metals market.
Common Uses for stones and troy ounces
Explore the typical applications for both Stone (imperial/US) and Troy Ounce (imperial/US) to understand their common contexts.
Common Uses for stones
- Body Weight: Primarily used in the UK and Ireland to express human body weight.
- Animal Weighing: Occasionally used informally for weighing large animals or agricultural produce in some Commonwealth countries.
- Historical Usage: Largely historical or colloquial use outside of body weight context.
Common Uses for troy ounces
- Precious Metals: The standard unit for quoting prices and weighing gold, silver, and platinum bullion (bars, coins).
- Gemstones: Sometimes used, although carat is more common for individual stones.
Frequently Asked Questions
Questions About Stone (st)
How many pounds are in a stone?
There are 14 pounds (lb) in 1 stone (st).
Is the stone used outside the UK and Ireland?
Its use is very limited outside the UK and Ireland, mainly for historical context or by people familiar with imperial body weight measurements.
Why is it called a stone?
The name originates from the historical practice of using stones of a standardized size as weight standards in trade.
About Troy Ounce (oz t)
Is a troy ounce the same as a regular ounce?
No. A troy ounce (approx. 31.10 g) is heavier than an avoirdupois ounce (the common "ounce" used for food, etc., approx. 28.35 g).
How many troy ounces are in a troy pound?
There are 12 troy ounces in one troy pound (which is lighter than an avoirdupois pound).
How many grams are in a troy ounce?
There are exactly 31.1034768 grams in 1 troy ounce.
Conversion Table: Stone to Troy Ounce
| Stone (st) | Troy Ounce (oz t) |
|---|---|
| 1 | 204.167 |
| 5 | 1,020.833 |
| 10 | 2,041.667 |
| 25 | 5,104.167 |
| 50 | 10,208.333 |
| 100 | 20,416.667 |
| 500 | 102,083.333 |
| 1,000 | 204,166.667 |
All Weight Conversions
Other Units from Weight
- Kilogram (kg)
- Gram (g)
- Milligram (mg)
- Pound (lb)
- Ounce (oz)
- Ton (metric) (t)
- Ton (US) (ton)
- Ton (UK) (long ton)
- Microgram (µg)
- Carat (ct)
- Slug (sl)
- Pennyweight (dwt)
- Grain (gr)
- Dram (dr)
- Quintal (q)
- Atomic Mass Unit (u)
- Pavan (India) (pavan)
- Kati (India) (kati)
- Masha (India) (masha)
- Dina (India) (dina)
- Pras (India) (pras)
- Lota (India) (lota)