Stone to Pounds
Convert stone to pound instantly — type a value and read the result, with the exact formula shown.
Reviewed by the CalcCafe editorial team · Last updated 1 July 2026 · How we test our tools
Example
1 st = 14 lb, 5 st = 70 lb, 10 st = 140 lb.
Common conversions: stone to pound
Quick reference for the st → lb values you are most likely to need, computed with the exact factor the converter above uses. It includes the specific values people most often look up (10 st, 12 st, 11 st, 14 st, 15 st). See also the reverse converter: Pound to Stone.
| Stone (st) | Pound (lb) |
|---|
| 1 st | 14 lb |
| 2 st | 28 lb |
| 3 st | 42 lb |
| 5 st | 70 lb |
| 9 st | 126 lb |
| 10 st | 140 lb |
| 11 st | 154 lb |
| 12 st | 168 lb |
| 13 st | 182 lb |
| 14 st | 196 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 |
| 60 st | 840 lb |
| 70 st | 980 lb |
| 75 st | 1,050 lb |
| 80 st | 1,120 lb |
| 90 st | 1,260 lb |
| 100 st | 1,400 lb |
| 150 st | 2,100 lb |
| 200 st | 2,800 lb |
| 250 st | 3,500 lb |
| 500 st | 7,000 lb |
| 1,000 st | 14,000 lb |
Pound to Stone
| Pound (lb) | Stone (st) |
|---|
| 1 lb | 0.071429 st |
| 5 lb | 0.357143 st |
| 10 lb | 0.714286 st |
| 50 lb | 3.5714 st |
| 100 lb | 7.1429 st |
How it works
Pound = Stone × 14. Every value is converted through a single kilogram base unit using internationally defined conversion factors, so any from/to pair stays consistent.
Good to know
Stone-to-pounds conversion comes up most often when you read a body weight in British or Irish style and need it in a single number. In the UK and Ireland people still say things like "11 stone 4" at the doctor's office or gym, but fitness apps, US-based programs, and weight charts usually want a flat pound figure, so converting 11 st 4 lb into 158 lb makes the two systems line up.
Both units are imperial, which is why the relationship is a clean whole number rather than a messy decimal. The pound (lb) is the everyday avoirdupois unit, and the stone is simply a bundle of exactly 14 of them — a leftover of old British trade weights that the metric world never adopted. Because both sit on the same imperial base, 1 stone is defined as precisely 14 pounds, with no approximation involved.
The rule of thumb is the easiest part: multiply stone by 14, or break it down as "ten times plus four times." For 9 stone, that's 90 + 36 = 126 lb. To go the other way quickly, divide pounds by 14, and remember that every 7 lb is exactly half a stone.
The most common mistake is treating the stone-and-pounds notation as a decimal. "11 st 5" does NOT mean 11.5 stone — the part after the stone is a count of pounds out of 14, not tenths. So 11 st 5 lb is 159 lb (11 × 14 + 5), whereas 11.5 stone would be 161 lb. Mixing those up throws results off by several pounds.
Frequently asked questions
How do you convert stone to pound?
Multiply the number of stones by 14 to get pounds. For example, 1 st = 14 lb.
What is 1 stone in pounds?
1 stone equals 14 pounds (1 st = 14 lb).
How many stones are in 1 pound?
There are 0.07142857 stones in 1 pound.
Is this converter free and private?
Yes. It runs entirely in your browser, so your inputs never leave your device, there is no sign-up, and it works offline once loaded.
Are the conversions exact?
Conversions use internationally defined factors and are exact where the definitions are exact (for example, 1 inch = 2.54 cm). Displayed results are rounded for readability.
People also ask
How many pounds are in a stone?
There are exactly 14 pounds in 1 stone, so 1 st = 14 lb. This is a fixed definition, not a rounded figure.
What is 12 stone in pounds?
12 stone equals 168 pounds (12 × 14 = 168).
How do I convert stone and pounds to total pounds?
Multiply the stone by 14 and add the leftover pounds. For example, 10 st 7 lb = (10 × 14) + 7 = 147 lb.
What is 14 stone in pounds?
14 stone equals 196 pounds (14 × 14 = 196).
How many pounds is 8 stone?
8 stone equals 112 pounds (8 × 14 = 112).
Is half a stone 7 pounds?
Yes. Half of 14 is 7, so half a stone is exactly 7 pounds, and a quarter stone is 3.5 pounds.
Why is a stone 14 pounds and not 10?
The stone is an old British trade weight that was standardized at 14 avoirdupois pounds for weighing goods like wool and people. It predates the metric system and was never decimalized, so it kept the 14-pound value.
What is 11 stone 4 in pounds?
11 stone 4 pounds is 158 pounds, because (11 × 14) + 4 = 154 + 4 = 158 lb.
Why do the British use stones for weight?
The stone is a survival of old British trading weights, when goods like wool were sold by the stone and the size varied by commodity; the Weights and Measures Act of 1835 fixed it at 14 pounds. It fell out of commercial use after metrication, but body weight in Britain and Ireland is still spoken in stones and pounds out of habit, so 11 st 4 lb is 11 × 14 + 4 = 158 lb. Official contexts such as medicine now use kilograms.
What is 182 lbs in stones and pounds?
182 lb is exactly 13 stone, with no pounds left over, because 182 ÷ 14 = 13. To do it by hand, divide by 14 and keep the remainder as pounds; here the remainder is 0. In metric, 182 lb is about 82.6 kg.
How heavy is 500 lbs in stones?
500 lb is 35 stone 10 lb. Divide by 14: 500 ÷ 14 = 35 with a remainder of 10, since 35 × 14 = 490 and 500 − 490 = 10. As a decimal that is 35.71 stone, and in metric about 226.8 kg.
What is 600 lbs in stones and pounds?
600 lb is 42 stone 12 lb. Working it out, 600 ÷ 14 = 42.857, and 42 × 14 = 588, leaving 600 − 588 = 12 pounds. In kilograms that is about 272.2 kg.
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Sources & references
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