Stone to Pounds
Convert stone to pound instantly — type a value and read the result, with the exact formula shown.
Example
1 st = 14 lb, 5 st = 70 lb, 10 st = 140 lb.
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.
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