Convert ounces to stones

1 oz=0.004464st

Use the converter below to change any ounces value into stones instantly — with formula, conversion table, and real-world examples.

You have

Equals

0.0044643

Conversion formula

Forward

stones = ounces × 0.004464

Reverse

ounces = stones × 224

Example: 10 oz × 0.004464 = 0.04464 st.

About both units

From

Ounce

The ounce equals 28.35 grams and is 1/16 of a pound. It is common in American and British cooking for small ingredient weights. The fluid ounce (29.57 ml in the US, 28.41 ml in the UK) is a volume unit and is completely different from the mass ounce.

Real-world: A US tin of tuna is 5 oz (142 g). A Starbucks grande coffee is 16 fl oz (473 ml). Gold is traded in troy ounces (31.10 g).

Read full ounce reference →

Stone

The stone equals 14 pounds or 6.35 kilograms. It is used almost exclusively in the UK and Ireland to express human body weight. A 70 kg person is described as "11 stone" in British English. The stone is not used in trade, science or any other context.

Real-world: A 70 kg adult is about 11 stone. A British NHS weight chart marks stones alongside kg. A heavyweight boxer over 14 stone is typical.

Read full stone reference →

Ounce to Stone conversion table

Common ounces to stones values for quick reference.

Ounce (oz)	Stone (st)
1 oz	0.004464 st
5 oz	0.02232 st
10 oz	0.04464 st
25 oz	0.1116 st
50 oz	0.2232 st
100 oz	0.4464 st
250 oz	1.11607 st
500 oz	2.23214 st
1,000 oz	4.46429 st
5,000 oz	22.3214 st

Tips & common mistakes

Quick tips

1 oz = 28.35 g exactly (avoirdupois); 1 troy oz = 31.10 g.
16 oz = 1 lb in the avoirdupois system used for food.
When converting a US recipe, 1 oz ≈ 2 tablespoons of a liquid ingredient.

Avoid these

Confusing mass ounces (28.35 g) with fluid ounces (volume).
Using avoirdupois ounces (28.35 g) for precious-metal pricing — gold is in troy ounces (31.10 g).
Multiplying lb × 16 and calling the result oz — correct only for weight, not volume.

Frequently asked questions

How many stones in a ounce?

One ounce equals 0.004464 stones.

How do I convert ounces to stones?

Multiply the ounce value by 0.004464 to get the equivalent in stones.

What is 100 ounces in stones?

100 ounces equals 0.4464 stones.

Is a ounce bigger than a stone?

No. 1 ounce equals 0.004464 stones, so one ounce is smaller.

How to convert ounces to stones without a calculator?

Multiply by 0 for a quick estimate; use a calculator for precise results.

Related weight conversions

📊 See full comparison matrix →

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