Pounds to Stone Calculator — lb to st
Convert any weight in pounds to stones. Shows whole stones and remaining pounds (e.g. 154 lb = 11 st 0 lb), plus kilograms and total ounces. Useful for UK and Irish body-weight displays.
lb
11 st 0 lb 0 oz
- 1
Conversion factor
141 stone = exactly 14 lb. - 2
Decimal stones = Pounds ÷ 14
154 ÷ 14 = 11
How does this calculator work?
Divide pounds by 14 to get stones: stones = floor(lb ÷ 14), remainder = lb − (stones × 14). One stone = 14 lb ≈ 6.35 kg. The stone unit is used in the UK and Ireland for body weight — 11 st 0 lb = 154 lb ≈ 69.85 kg.
Formula
How this is calculated
One stone is defined as exactly 14 international avoirdupois pounds — a unit still widely used in the United Kingdom and Ireland for adult body weight, though not in the US or most metric countries. To convert pounds to stones, divide by 14: the integer part is the number of whole stones and the fractional remainder (× 14) gives the leftover pounds.
The calculator further splits the remaining pounds into whole pounds and ounces (at 16 oz per pound), matching the three-part format used on traditional UK scales ("X st Y lb Z oz"). It also converts to kilograms using the exact definition 1 lb = 0.453 592 37 kg and to total ounces at 16 oz per pound.
The number line shows your pound value on a scale from 0 to the next whole-stone boundary, with a stone marker every 14 lb, making it easy to see how close you are to the next stone.
Frequently asked questions
There are exactly 14 avoirdupois pounds in one stone, so 1 stone ≈ 6.350 kg. To convert pounds to stones, divide by 14. To go the other way, multiply stones by 14.
The stone is used almost exclusively in the United Kingdom and Ireland for measuring adult body weight. It is not common in the US (which uses pounds only) or in metric countries. British bathroom scales often show weight in stones and pounds (e.g. 11 st 4 lb).
200 ÷ 14 = 14.286 stone. The whole-stone part is 14, and the remainder is 0.286 × 14 = 4.0 lb. So 200 lb = 14 st 4 lb. Enter 200 in the calculator to see the exact figure including ounces.
Also known as
TG we-Calculate Editorial Team. (2026). Pounds to Stone Calculator — lb to st [Online calculator]. TG we-Calculate. https://we-calculate.com/calculator/pounds-to-stone-calculator
TG we-Calculate Editorial Team. "Pounds to Stone Calculator — lb to st." TG we-Calculate. 2026. https://we-calculate.com/calculator/pounds-to-stone-calculator.
TG we-Calculate Editorial Team, "Pounds to Stone Calculator — lb to st," TG we-Calculate, 2026. [Online]. Available: https://we-calculate.com/calculator/pounds-to-stone-calculator
@misc{wecalculate_pounds_to_stone_calculator, title = {Pounds to Stone Calculator — lb to st}, author = {{TG we-Calculate Editorial Team}}, howpublished = {\url{https://we-calculate.com/calculator/pounds-to-stone-calculator}}, year = {2026}, note = {TG we-Calculate} }
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