Stones to Ounces Converter
Enter the weight in stones below to convert it to ounces.
Convert Stones to Ounces
Enter a value in stones (st) to convert to ounces (oz).
Stone to Ounce Conversion Table
Table showing various stone measurements converted to ounces. Click any preset value or arrow to load it into the converter.
How to Convert Stones to Ounces
To convert stones to ounces, multiply the weight by the following conversion ratio: 224 ounces/stone.
Since one stone is equal to 224 ounces, you can use this simple formula to convert:
The weight in ounces is equal to the weight in stones multiplied by 224.
For example, here's how to convert 5 stones to ounces using the formula above.
How Many Ounces Are in a Stone?
There are 224 ounces in a stone, which is why we use this value in the formula above.
Our stone to ounce calculator automatically converts your weight measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Stones and ounces are both units used to measure weight. Keep reading to learn more about each unit.
What Is a Stone?
A stone is a unit of weight equal to 6.3502932 kilograms (kg), the base unit for weight. British imperial unit equal to 14 pounds (6.35029 kg). [1]
The stone is classified as a US customary and imperial unit of weight. Stones can be abbreviated as st; for example, 1 stone can be written as 1 st.
When working with stones (st) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, stones (st) are widely used across standard weight applications within US customary and imperial workflows, engineering documentation, and technical data sheets.
What Is an Ounce?
An ounce is a unit of weight equal to 0.0283495 kilograms (kg), the base unit for weight. Equal to 1/16 of a pound (approx. 28.3495 grams). [2]
The ounce is classified as a US customary and imperial unit of weight. Ounces can be abbreviated as oz; for example, 1 ounce can be written as 1 oz.
When working with ounces (oz) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, ounces (oz) are widely used across standard weight applications within US customary and imperial workflows, engineering documentation, and technical data sheets.
When converting weight between stones (st) and ounces (oz), keep full floating-point precision (1 st = 224 oz; 1 oz = 0.0044643 st) during intermediate calculations and round only the final ounce figure to match your instrument tolerance.
More Stone & Ounce Conversions
Need to calculate in the opposite direction? Use our ounces to stones calculator to switch your starting unit immediately. You can also explore related tools such as converting ounces to stones, converting grams to ounces, or converting pounds to ounces.
Convert from Stones
Weight and volume require ingredient density (g/mL). Choose a USDA FoodData Central verified ingredient below:
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Mass)·Mass & Weight Metrology Standard — Stones (st) to Ounces (oz)
- [2]NIST HB 44 SpecificationNIST HB 44 (NIST Handbook 44 (Current Ed.))·Unit Specifications: Stone (UK) (st) & Ounce (oz)
- [3]BIPM ReferenceBIPM (SI Base Unit: Kilogram (kg))·Conversion Factors & Mathematical Basis (st to oz)