Pounds to stone (lb to st)
Convert pounds to stone. For mass, 1 lb equals 0.07142857143 st.
Converter
lb to st conversion table
| Pounds | Stone |
|---|---|
| 1 lb | 0.071428571 st |
| 2 lb | 0.14285714 st |
| 5 lb | 0.35714286 st |
| 10 lb | 0.71428571 st |
| 25 lb | 1.7857143 st |
| 50 lb | 3.5714286 st |
| 100 lb | 7.1428571 st |
| 1000 lb | 71.428571 st |
Formula
st = lb × 0.07142857143
Worked example
25 lb × 0.07142857143 = 1.785714286 st
Popular conversion examples
Choose an example to open this converter with the value filled in. These are useful examples, not a claim about search rankings.
- 1 lb to st = 0.0714286 st
- 5 lb to st = 0.357143 st
- 100 lb to st = 7.14286 st
- 150 lb to st = 10.7143 st
- 20 st to lb = 280 lb
- 16 st to lb = 224 lb
About pounds and stone
Pound (lb)
The avoirdupois pound is defined as exactly 0.45359237 kilograms. It is used for body weight, groceries and shipping in the US and UK.
Stone (st)
The stone is a British unit equal to 14 avoirdupois pounds (6.35029318 kg). It is used mainly for body weight in the UK and Ireland.
Both are units of mass; the base unit used internally is kg.
Notes
- Ounces and pounds are avoirdupois units of mass (1 lb = 0.45359237 kg exactly).
- The stone is the British unit of 14 avoirdupois pounds (6.35029318 kg). The troy ounce (31.1034768 g, used for precious metals) is a different unit from the avoirdupois ounce, and the grain is exactly 1/7000 of a pound (64.79891 mg).
- Mass cannot be negative.
lb to st FAQs
How do I convert pounds to stone?
Multiply the number of pounds by 0.07142857143 (equivalently, divide by 14) to get stone. For example, 25 lb × 0.07142857143 = 1.78571 st.
How many stone are in one pound?
1 lb = 0.07142857143 st and 1 st = 14 lb. To go the other way, use the stone to pounds converter.
How many stone are in 20 pounds?
20 lb = 1.42857 st, rounded to 6 significant digits. Change the value in the converter above for any other amount.
How many stone are in 200 pounds?
200 lb = 14.2857 st, rounded to 6 significant digits.
Is the lb to st conversion exact?
The ratio is exact by definition, but its decimal form does not end (0.0714285714286… to 12 significant digits). The converter keeps full precision internally and rounds only the displayed answer, which you can set from 4 to 12 significant digits.
What is the difference between pounds and stone?
The avoirdupois pound is defined as exactly 0.45359237 kilograms. It is used for body weight, groceries and shipping in the US and UK. The stone is a British unit equal to 14 avoirdupois pounds (6.35029318 kg). It is used mainly for body weight in the UK and Ireland.
Does this convert weight or mass?
Strictly it converts mass. The pound, ounce and stone here are units of mass, which is what scales and everyday “weight” refer to on Earth. Pound-force and other units of force are different and are not handled by this converter.
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