About the st to oz calculation
One stone is exactly 224 ounces, so converting between them is a single multiplication. Enter any value above and the result updates as you type. A British unit of exactly 14 pounds, still the normal way to state bodyweight in the UK. Common in US recipes and for postal weights. Not the same as a fluid ounce.
Formula
oz = st × 224
1 st = 224 oz
1 oz = 0.00446429 stWorked example
To convert 11 st, multiply by 224: 11 × 224 = 2,464 oz.
Frequently asked questions
How many ounces are in a stone?
There are 224 ounces in one stone. To convert any amount, multiply the number of stone by 224.
How do I convert ounces back to stone?
Divide instead of multiplying, or equivalently multiply by 0.00446429. One ounce is 0.00446429 stone.
Is this conversion exact?
Yes. Since the international agreement of 1959, the relationship between stone and ounces is defined exactly rather than measured, so the only rounding here is in how many decimal places we show.
Where is each of these units used?
Stone: a British unit of exactly 14 pounds, still the normal way to state bodyweight in the UK. Ounces: common in US recipes and for postal weights. Not the same as a fluid ounce.
Sources
- NIST Special Publication 811 — Guide for the Use of the International System of Units