Convert pounds (lbs) to stone with a traditional st-lb breakdown. Includes a comprehensive lbs-to-stone table and kilograms equivalents.
This converter translates pounds into the stone-and-pounds format commonly used in the United Kingdom and Ireland for body weight. One stone equals exactly 14 pounds, so weights are often spoken as a combination such as "11 stone 6 pounds" rather than a single decimal number. It is the same weight, just grouped into a friendlier UK-style format.
The tool shows both the decimal stone value and the traditional stone-plus-pounds breakdown. It also provides metric equivalents so you can move easily between US customary, UK customary, and SI weight formats. That is useful when comparing scale readings, fitness goals, or medical notes from different countries. The grouped result is often easier to say, read, and compare than a long decimal. It is also the format many UK scale displays and health charts use.
The included reference table covers a broad range of typical body weights so users can find a familiar conversion quickly without doing mental arithmetic.
Use this converter when you need to restate body weight between pounds and the UK stone-plus-pounds format without doing the 14-pound grouping by hand. It is especially helpful when a scale or chart expects stone, but your source number is in pounds. It also avoids the awkward step of rounding a decimal stone value when the grouped format is what people actually expect.
Stone = Pounds ÷ 14. Remaining pounds = Pounds mod 14. Kilograms = Pounds × 0.453592.
Result: 160 lb = 11.43 st = 11 st 6 lb = 72.57 kg
160 ÷ 14 = 11.43 stone. 11 × 14 = 154, so the remainder is 6 pounds. Thus, 11 stone 6 pounds.
Dividing by 14 is not easy mental math. Quick trick: multiples of 14 (14, 28, 42, 56, 70, 84, 98, 112, 126, 140, 154, 168, 182, 196, 210) map to exact stone values. Find the nearest multiple below your weight, then count the remaining pounds.
In the UK, saying "I weigh 11 stone 5" is as natural as an American saying "I weigh 159 pounds." British fitness apps, weight-loss shows, and doctor's offices all use stone. Americans traveling to the UK will encounter stone on gym equipment and bathroom scales.
The three body-weight systems — pounds (US), stone-and-pounds (UK), and kilograms (metric) — each have advantages. Pounds are granular, stone groups pounds into manageable chunks, and kilograms align with the global scientific system.
One stone is exactly 14 pounds. That fixed value makes the stone system easy to group by hand.
Divide pounds by 14. The whole number is stone; the remainder is pounds. Example: 175 lb ÷ 14 = 12 st 7 lb. That is the standard way to read the UK-style result.
150 ÷ 14 = 10.71 stone, or 10 stone 10 pounds. The decimal form and the grouped form mean the same thing.
200 ÷ 14 = 14.29 stone, or 14 stone 4 pounds. The grouped version is usually easier to say out loud.
Yes. In the UK and Ireland, stone is still widely used for body weight in conversation, on scales, and in many fitness contexts. It remains a normal everyday unit there.
The British Weights and Measures Act of 1835 standardized 1 stone as 14 pounds. Before that, the stone varied by commodity (8 lb for meat, 16 lb for cheese, etc.). That older variability is why the modern fixed stone matters.