Ounces to Stone (oz to st) Converter and Formula

1 ounce equals 0.00446429 stone — multiply the number of ounces by 0.00446429, or divide by 224, to convert. A stone is 14 pounds and each pound is 16 ounces, so one stone is 224 ounces, which makes an ounce a tiny 1/224 of a stone.

The formula

To convert ounces to stone, multiply by 0.00446429:

st = oz × 0.00446429

For example, 112 oz is 112 × 0.00446429 = 0.5 st (half a stone). To reverse it, divide by 0.00446429 (or multiply by 224).

Conversion table

How to convert online

1. Type the number of ounces into the first box.
2. Read the equivalent value in stone instantly in the second box.
3. Or enter a stone value to convert back to ounces — it works both ways.

Use the Ounce to Stone Converter — free and instant in your browser.

Where this conversion is used

The stone is a British and Irish unit still used for body weight, so converting ounces to stone is mostly relevant when translating fine imperial weights into everyday UK body-weight figures, or when reconciling ounce-based scale readings with stone-and-pound charts used in health and fitness. Because a stone is a large 224 ounces, ounce-to-stone results are small decimals: 112 oz is exactly half a stone, and 56 oz is a quarter stone. To read a decimal-stone answer as the traditional stones-and-pounds format, take the whole number as stones and multiply the remaining fraction by 14 to get pounds. For everyday body-weight tracking most people convert stone from kilograms or pounds rather than ounces, but the converter below makes the ounce route just as quick when you need it.

FAQ

How many ounces are in a stone?

There are exactly 224 ounces in one stone, so 1 oz = 0.00446429 st and 224 oz = 1 st.

What is the formula to convert ounces to stone?

st = oz × 0.00446429. For example, 10 oz = 0.0446429 st and 100 oz = 0.4464286 st.

How do I convert stone back to ounces?

Divide the stone value by 0.00446429, or multiply by 224. So 0.0446429 st = 10 oz.

Is the conversion exact?

The relationship 1 stone = 224 ounces is exact; 0.00446429 is the rounded reciprocal and the tool applies full precision.

Related converters

• Stone to Ounce Converter
• Ounce to Pound Converter
• Ounce to Kilogram Converter
• Ounce to Gram Converter

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