Convert stone and pounds to lbs, kilograms, ounces, and grams. Enter stone + extra pounds for accurate UK-to-US weight conversion.
The stone to lbs converter translates the British body-weight format into total pounds. One stone equals exactly 14 pounds, and the converter accepts both stone and extra pounds so it matches the everyday UK format of "X stone Y". That mixed format is important because many people do not write stone as a decimal; they write the whole stone count and then the leftover pounds.
It also shows kilograms and related breakdowns so the result is easier to use in US, UK, and metric contexts. This is useful when reading British health articles, sports coverage, or fitness forums where weight is still commonly expressed in stone. It also makes the answer immediately usable when you need a single pounds value for a form or comparison chart.
Use it when a weight is written in stone and pounds and you need the total in pounds or kilograms immediately. The calculator keeps the body-weight notation clear while converting it into the format your next system expects.
Use this converter when a weight is written in stone and pounds and you need the total in pounds or kilograms immediately.
It is useful for health content, training logs, TV references, and international weight comparisons where the UK format would otherwise slow down the reading. It also removes the chance of adding the stone and pounds incorrectly before converting to the final unit.
Pounds = (Stone × 14) + Extra Pounds. Kilograms = Pounds × 0.453592.
Result: 11 st 7 lb = 161 lb = 73.03 kg
11 × 14 = 154 pounds. Plus 7 = 161 pounds. 161 × 0.453592 = 73.03 kg.
7 st = 98 lb, 8 st = 112 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, 16 st = 224 lb. Memorize the ones closest to your weight for instant conversion.
When a British person says "I lost two stone," they mean they lost 28 pounds (12.7 kg). Weight loss reality shows in the UK always use stone, and understanding this unit makes the results more meaningful for international viewers.
Americans express body weight in pounds only. Brits use stone-and-pounds. Most of the rest of the world uses kilograms. A person weighing "12 stone 7" = 175 lbs = 79.4 kg. All three formats appear in international health media.
1 stone = 14 pounds (lbs). That fixed ratio is what the converter uses for every stone value.
10 stone = 140 lbs. The result is simply the stone count multiplied by 14.
12 stone 5 pounds = 173 lbs. The leftover pounds are added after the stone-to-pound conversion.
15 stone = 210 lbs. That is the same calculation the page uses for any stone input.
Stone is primarily used in the UK and Ireland for body weight. It is not commonly used in the US, Canada, Australia, or mainland Europe, although people elsewhere may still encounter it in media or imported fitness content.
Stone is abbreviated "st." — both singular and plural. "11 st 7 lb" means eleven stone seven pounds, which is the format the calculator accepts directly.