How do I convert ounces to stones?

Multiply the ounce value by 0.00446429. So x oz × 0.00446429 = the equivalent in st.

What is 5 ounces in stones?

5 ounces equals 0.0223214 stones.

What is 10 ounces in stones?

10 ounces equals 0.0446429 stones.

What is 100 ounces in stones?

100 ounces equals 0.446429 stones.

How do I convert back from stones to ounces?

Multiply the stone value by 224. For example, 1 st = 224 oz.

Is the ounce bigger than the stone?

No. 1 ounce is smaller than 1 stone. It takes 224 ounces to equal 1 stone.

Are these conversion factors exact?

Yes. Since the 1959 international yard and pound agreement, imperial/US units are defined exactly in terms of metric units, so the factor used here (0.00446429) is exact within IEEE 754 double precision.

Ounces to Stones Converter

1 oz = 0.00446429 st

1 ounce equals 0.00446429 stones. To convert ounces to stones, multiply the ounce value by 0.00446429. For quick reference: 1 oz = 0.00446429 st, 5 oz = 0.0223214 st, 10 oz = 0.0446429 st, 100 oz = 0.446429 st.

From

0.00446429

FormulaStones = Ounces × 0.00446429

Quick

How to convert ounces to stones

Take your value
Start with your value in ounces.
Multiply by 0.00446429
Multiply the ounce value by 0.00446429. This is the exact conversion factor from ounces to stones.
Read the result
The product is your value in stones. For example, 5 oz × 0.00446429 = 0.0223214 st.

Conversion formula

The exact factor from ounces to stones is 0.00446429.

Stones = Ounces × 0.00446429

Ounces to Stones conversion table

Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.

Conversion table from ounces to stones
Ounces (oz)	Stones (st)
0.1 oz	0.00044643 st
0.25 oz	0.0011161 st
0.5 oz	0.0022321 st
1 oz	0.0044643 st
1.5 oz	0.0066964 st
2 oz	0.0089286 st
2.5 oz	0.011161 st
3 oz	0.013393 st
4 oz	0.017857 st
5 oz	0.022321 st
6 oz	0.026786 st
7 oz	0.03125 st
8 oz	0.035714 st
9 oz	0.040179 st
10 oz	0.044643 st
12 oz	0.053571 st
15 oz	0.066964 st
18 oz	0.080357 st
20 oz	0.089286 st
25 oz	0.11161 st
30 oz	0.13393 st
35 oz	0.15625 st
40 oz	0.17857 st
45 oz	0.20089 st
50 oz	0.22321 st
60 oz	0.26786 st
70 oz	0.3125 st
75 oz	0.33482 st
80 oz	0.35714 st
90 oz	0.40179 st
100 oz	0.44643 st
120 oz	0.53571 st
125 oz	0.55804 st
150 oz	0.66964 st
175 oz	0.78125 st
180 oz	0.80357 st
200 oz	0.89286 st
225 oz	1.0045 st
250 oz	1.1161 st
275 oz	1.2277 st
300 oz	1.3393 st
350 oz	1.5625 st
400 oz	1.7857 st
450 oz	2.0089 st
500 oz	2.2321 st
600 oz	2.6786 st
750 oz	3.3482 st
1000 oz	4.4643 st
2000 oz	8.9286 st
5000 oz	22.321 st

Real-world reference

A slice of bread is about 1 oz. A baseball weighs around 5 oz.

Frequently asked questions

How many stones are in 1 ounce?: 1 ounce equals 0.00446429 stones.
How do I convert ounces to stones?: Multiply the ounce value by 0.00446429. So x oz × 0.00446429 = the equivalent in st.
What is 5 ounces in stones?: 5 ounces equals 0.0223214 stones.
What is 10 ounces in stones?: 10 ounces equals 0.0446429 stones.
What is 100 ounces in stones?: 100 ounces equals 0.446429 stones.
How do I convert back from stones to ounces?: Multiply the stone value by 224. For example, 1 st = 224 oz.
Is the ounce bigger than the stone?: No. 1 ounce is smaller than 1 stone. It takes 224 ounces to equal 1 stone.
Are these conversion factors exact?: Yes. Since the 1959 international yard and pound agreement, imperial/US units are defined exactly in terms of metric units, so the factor used here (0.00446429) is exact within IEEE 754 double precision.

About the ounce and the stone

The ounce

The avoirdupois ounce (oz) is a unit of mass in the imperial and US customary systems, defined as exactly 28.349523125 grams (1/16 of an avoirdupois pound). It is the standard small-mass unit in the United States for food packaging, recipes, and postal weights. Do not confuse it with the troy ounce (used for precious metals, 31.1035 g) or the fluid ounce (a volume).

The stone

The stone (st) equals exactly 14 pounds (about 6.35 kg). It is still widely used in the United Kingdom and Ireland to state body weight, even though it is no longer legal for trade. The stone was originally a real stone used by merchants as a counterweight on balances; its weight varied by region and trade until standardized in the late 19th century.