Stone to Pounds
Stone to Pounds (st to lb) Converter
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1 stone = 14 pounds
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 st = 14 lb
- 5 st = 70 lb
- 10 st = 140 lb
- 25 st = 350 lb
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How it’s calculated
A stone is exactly 14 lb (6.35029318 kg). It is used for body weight in the UK and Ireland, often written like 11 st 4 lb.
1 st = 14 lb (exact) · 1 lb ≈ 0.071428571 st
lb = st × 14
- Multiply the value in stone by 14.
- To go back, divide by 14 (or multiply by 0.07142857143).
- 1 st = 14 lb · 1 lb = 0.07142857143 st
Step by step
Find the conversion factor
By definition 1 st = 6.35029318 kg and 1 lb = 0.45359237 kg, so 1 st = 14 lb. Source: NIST SP 811 / Handbook 44.
Multiply by the factor written as a fraction
Put st in the denominator so it cancels, leaving lb.
Calculate (unrounded)
Round the answer
Rounded to 5 significant figures.
Answer: 14 lb
Formula: lb = st × 14. Factors last reviewed 2026-10-27.
Stone to pounds conversion table
1 stone = 14 pounds · 1 lb = 0.071429 st
- 1 stone = 14 pounds
- 5 stone = 70 pounds
- 10 stone = 140 pounds
- 25 stone = 350 pounds
- 100 stone = 1,400 pounds
| Stone (st) | Pounds (lb) |
|---|---|
| 0.1 st | 1.4 lb |
| 0.5 st | 7 lb |
| 1 st | 14 lb |
| 2 st | 28 lb |
| 3 st | 42 lb |
| 4 st | 56 lb |
| 5 st | 70 lb |
| 6 st | 84 lb |
| 7 st | 98 lb |
| 8 st | 112 lb |
| 9 st | 126 lb |
| 10 st | 140 lb |
| 15 st | 210 lb |
| 20 st | 280 lb |
| 25 st | 350 lb |
| 30 st | 420 lb |
| 40 st | 560 lb |
| 50 st | 700 lb |
| 75 st | 1,050 lb |
| 100 st | 1,400 lb |
| 250 st | 3,500 lb |
| 500 st | 7,000 lb |
| 1,000 st | 14,000 lb |
FAQ
How do I convert stone to pounds?
Use lb = st × 14. Multiply the value in stone by 14.
How many pounds are in 1 stone?
1 stone (st) equals 14 pounds (lb).
How many stone are in 1 pound?
1 pound (lb) equals 0.071429 stone (st); more precisely 0.07142857143.
What is 10 st in lb?
10 stone = 140 pounds.
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 stone?
Exactly 14 pounds (6.35029318 kg). Common for body weight in the UK and Ireland.
What is a pound?
The everyday (avoirdupois) pound, defined as exactly 0.45359237 kg since 1959.
About these units
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
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