Pounds to Stone
Pounds to Stone (lb to st) Converter
Convert from
- Kilogramskg
- Poundslb
- Gramsg
- Milligramsmg
- Microgramsµg
- Tonnest
- Ouncesoz
- Stone (UK)st
- US short tonston (US)
- UK long tonston (UK)
- Troy ouncesoz t
- Grainsgr
- Caratsct
- Slugsslug
1 pound = 0.071429 stone
Default is 5 significant figures. “Units typed as” decides what words like gallon, pint or cup mean when you type them. Scientific input such as 1e15 or 2.5e-3 works in the value box; type unit names or a whole conversion in the unit picker’s search.
- 1 lb = 0.071429 st
- 5 lb = 0.35714 st
- 10 lb = 0.71429 st
- 25 lb = 1.7857 st
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How it’s calculated
Divide pounds by 14. The whole number is the stone and the remainder is the pounds, so 160 lb = 11 st 6 lb.
1 lb ≈ 0.071428571 st · 1 st = 14 lb (exact)
st = lb ÷ 14
- Divide the value in pounds by 14.
- Equivalently, multiply by 0.07142857143.
- 1 lb = 0.07142857143 st · 1 st = 14 lb
Step by step
Find the conversion factor
By definition 1 lb = 0.45359237 kg and 1 st = 6.35029318 kg, so 1 st = 14 lb. Source: NIST SP 811 / Handbook 44.
Multiply by the factor written as a fraction
Put lb in the denominator so it cancels, leaving st.
Calculate (unrounded)
Round the answer
Rounded to 5 significant figures.
Answer: 0.071429 st
Formula: st = lb ÷ 14. Factors last reviewed 2026-10-27.
Pounds to stone conversion table
1 pound = 0.071429 stone · 1 st = 14 lb
- 1 pound = 0.071429 stone
- 5 pounds = 0.35714 stone
- 10 pounds = 0.71429 stone
- 25 pounds = 1.7857 stone
- 100 pounds = 7.1429 stone
| Pounds (lb) | Stone (st) |
|---|---|
| 0.1 lb | 0.0071429 st |
| 0.5 lb | 0.035714 st |
| 1 lb | 0.071429 st |
| 2 lb | 0.14286 st |
| 3 lb | 0.21429 st |
| 4 lb | 0.28571 st |
| 5 lb | 0.35714 st |
| 6 lb | 0.42857 st |
| 7 lb | 0.5 st |
| 8 lb | 0.57143 st |
| 9 lb | 0.64286 st |
| 10 lb | 0.71429 st |
| 15 lb | 1.0714 st |
| 20 lb | 1.4286 st |
| 25 lb | 1.7857 st |
| 30 lb | 2.1429 st |
| 40 lb | 2.8571 st |
| 50 lb | 3.5714 st |
| 75 lb | 5.3571 st |
| 100 lb | 7.1429 st |
| 250 lb | 17.857 st |
| 500 lb | 35.714 st |
| 1,000 lb | 71.429 st |
FAQ
How do I convert pounds to stone?
Use st = lb ÷ 14. Divide the value in pounds by 14.
How many stone are in 1 pound?
1 pound (lb) equals 0.071429 stone (st); more precisely 0.07142857143.
How many pounds are in 1 stone?
1 stone (st) equals 14 pounds (lb).
What is 10 lb in st?
10 pounds = 0.71429 stone.
Is the stone a US or a UK unit?
Unitglide uses the British imperial stone. Exactly 14 pounds (6.35029318 kg). Common for body weight in the UK and Ireland. US and UK units with the same name can differ, so check which one your source uses.
What is a pound?
The everyday (avoirdupois) pound, defined as exactly 0.45359237 kg since 1959.
What is a stone?
Exactly 14 pounds (6.35029318 kg). Common for body weight in the UK and Ireland.
About these units
Pound (lb)
US & imperial (identical)
1 lb = 0.45359237 kg (exact)
The everyday (avoirdupois) pound, defined as exactly 0.45359237 kg since 1959.
Source: NIST SP 811 / Handbook 44
Stone (st)
British imperial
1 st = 6.35029318 kg (exact)
Exactly 14 pounds (6.35029318 kg). Common for body weight in the UK and Ireland.
Source: NIST SP 811 / Handbook 44