Stone to Ounce Conversion Calculator: Free Online Tool
Convert stones to ounces with our free online weight converter.
Stone to Ounce Calculator
How to Use the Calculator:
- Enter the value you want to convert in the 'From' field (Stone).
- The converted value in 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 Ounce
Converting Stone to Ounce involves multiplying the value by a specific conversion factor, as shown in the formula below.
Formula:
1 Stone = 224 ouncesExample Calculation:
Convert 5 stones: 5 × 224 = 1120 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 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 ounce (oz) is a unit of mass used in the British imperial and United States customary systems of measurement. The most common type today is the international avoirdupois ounce, defined as exactly 1/16 of an avoirdupois pound, or approximately 28.35 grams.
Note: The Stone is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Ounce belongs to the imperial/US customary system.
History of the Stone and 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 term "ounce" derives from the Roman "uncia", which was one-twelfth of the Roman pound. Its value varied throughout history and regions. The avoirdupois ounce became standardized in the English-speaking world for general trade.
Common Uses for stones and ounces
Explore the typical applications for both Stone (imperial/US) and 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 ounces
- Cooking & Recipes: Standard unit in the US for measuring food ingredients like flour, sugar, spices, and non-liquid items in recipes.
- Packaged Foods: Used for labeling the net weight of many packaged food products (e.g., cereal boxes, canned goods, snacks).
- Postal Services: Used for determining the weight and cost of letters and small parcels, especially in the US.
- Deli & Groceries: Common unit for measuring small portions of items like cheese, deli meats, and specialty foods.
- Precious Metals: Often used to measure the weight of gold, silver, and other precious metals in jewelry and bullion.
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 Ounce (oz)
How many ounces are in a pound?
There are 16 avoirdupois ounces (oz) in 1 pound (lb).
Is an ounce the same as a fluid ounce?
No. The ounce (oz) measures mass/weight, while the fluid ounce (fl oz) measures volume.
Where is the ounce commonly used?
It is primarily used in the United States for everyday measurements, and to some extent in the UK and Canada, though metric units are more prevalent globally.
Conversion Table: Stone to Ounce
| Stone (st) | Ounce (oz) |
|---|---|
| 1 | 224 |
| 5 | 1,120 |
| 10 | 2,240 |
| 25 | 5,600 |
| 50 | 11,200 |
| 100 | 22,400 |
| 500 | 112,000 |
| 1,000 | 224,000 |
All Weight Conversions
Other Units from Weight
- Kilogram (kg)
- Gram (g)
- Milligram (mg)
- Pound (lb)
- Ton (metric) (t)
- Ton (US) (ton)
- Ton (UK) (long ton)
- Microgram (µg)
- Carat (ct)
- Slug (sl)
- Troy Ounce (oz t)
- 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)