How to convert stone to ounces
To convert a measurement in stone to ounces, multiply the value by 224. The conversion factor comes from the relationship between both units and the kilogram.
For example, to convert 5 st to ounces: 5 × 224 = 1,120 oz.
What is a stone?
A stone is a British imperial unit of mass equal to 14 pounds or exactly 6.35029318 kilograms. The stone was historically used across Europe with regionally varying values before Britain standardized it at 14 pounds. It remains in everyday use in the UK and Ireland for body weight despite metrication.
Common uses of stone include: Body weight in the UK and Ireland; Weigh-ins for sports and fitness in Britain; Historical and livestock weight references; Everyday conversational weight in the British Isles.
What is a ounce?
An ounce is an imperial and US customary unit of mass equal to 1/16 of a pound or exactly 28.349523125 grams. The avoirdupois ounce descends from the Roman 'uncia' (one twelfth). It is distinct from the troy ounce used for precious metals, which is heavier at about 31.1 grams.
Common uses of ounces include: Food portions and recipe ingredients in the US; Postal and letter weights; Packaged goods net weight (cereal, snacks); Baby birth weights in the US.
Stone to ounces worked examples
Here are some common values converted:
1 st = 224 oz 5 st = 1,120 oz 10 st = 2,240 oz 50 st = 11,200 oz 100 st = 22,400 oz
Frequently asked questions
How many ounces are in one stone?
One stone (st) equals 224 ounces (oz). Multiply any value in stone by 224 to convert to ounces.
How do I convert stone to ounces?
Multiply the value in stone by 224. For example, 5 st × 224 = 1,120 oz.
How do I convert ounces to stone?
Multiply the value in ounces by 0.004464285714, or divide by 224. Use the swap button on the converter above to reverse the direction.
Is the stone to ounce conversion exact?
Yes. Since 1959 the international pound is defined as exactly 0.45359237 kg, so all weight conversions between metric and avoirdupois units use exact factors.
What is the formula for stone to ounces?
The formula is: oz = st × 224. This comes from the definition of both units relative to the kilogram.