Ounce to Stone Converter
Convert Ounce (oz) to Stone (st) instantly. 1 oz = 0.004464 st.
Mass Converter
26 units available
1 oz = 0.004464 st
Formula:
st = oz × 0.0044642857With your value: 1 oz = 0.00446429 st
How big is that?
Everyday references on a logarithmic scale, all expressed in ounce so you can sanity-check the result.
Other Ounce to Stone conversions
Ounce to Stone Conversion Table
| Ounce (oz) | Stone (st) |
|---|---|
| 0.5 | 0.002232 |
| 1 | 0.004464 |
| 2 | 0.008929 |
| 5 | 0.022321 |
| 10 | 0.044643 |
| 15 | 0.066964 |
| 20 | 0.089286 |
| 25 | 0.111607 |
| 50 | 0.223214 |
| 100 | 0.446429 |
| 250 | 1.116071 |
| 500 | 2.232143 |
| 1000 | 4.464286 |
Stone to Ounce Conversion Table
| Stone (st) | Ounce (oz) |
|---|---|
| 0.5 | 112 |
| 1 | 224 |
| 2 | 448 |
| 5 | 1,120 |
| 10 | 2,240 |
| 15 | 3,360 |
| 20 | 4,480 |
| 25 | 5,600 |
| 50 | 11,200 |
| 100 | 22,400 |
| 250 | 56,000 |
| 500 | 112,000 |
| 1000 | 224,000 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Ounce (oz)
Mass
1 avoirdupois ounce = 1/16 lb = 0.028 349 523 125 kg exactly.
Source: International Yard and Pound Agreement of 1959; NIST Federal Register Notice 59-5442
US, UK, Canada, Australia, New Zealand, South Africa · Reviewed 2026-07-01
Stone (st)
Mass
Traceable to the kilogram, defined by fixing the Planck constant at 6.626 070 15 × 10⁻³⁴ J·s. Avoirdupois masses derive from the 1959 international pound (0.453 592 37 kg exactly).
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
How to Convert Ounce to Stone
To convert from Ounce (oz) to Stone (st), multiply the value by 0.0044642857.
Formula: st = oz × 0.0044642857
Reverse: oz = st × 224
Step-by-Step Example
- Start with your value in Ounce. For example: 5 oz
- Multiply by the conversion factor: 5 x 0.0044642857
- The result is: 0.022321 st
About Ounce
The ounce (oz) equals 1/16 of a pound or approximately 28.35 grams. It is used for food portions and small weight measurements.
Common uses: food portions, postal mail, precious metals.
About Stone
The stone equals 14 pounds or about 6.35 kg. It is primarily used in the UK and Ireland for expressing body weight.
Fun Fact: The stone varied in weight depending on the commodity being weighed until it was standardized at 14 pounds in 1835.
Common uses: body weight (UK), agriculture.
Frequently Asked Questions
How many Stone are in 1 Ounce?
There are exactly 0.0044642857 Stone in 1 Ounce. This means the conversion factor from Ounce to Stone is 0.0044642857.
What is the formula to convert Ounce to Stone?
The formula to convert Ounce to Stone is: st = oz × 0.0044642857. For example, to convert 10 Ounce to Stone, you would multiply 10 by 0.0044642857.
What is a Ounce?
The ounce (oz) equals 1/16 of a pound or approximately 28.35 grams. It is used for food portions and small weight measurements.
What is a Stone?
The stone equals 14 pounds or about 6.35 kg. It is primarily used in the UK and Ireland for expressing body weight.
What are the common uses of Ounce?
The Ounce is commonly used in food portions, postal mail, precious metals.
Related Mass Conversions
Cite this page
UnitConvertLab. (2026). Ounce to Stone converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/ounce-to-stone