ConvBolt — Unit ConverterPounds to Stone Converter
Converting pounds to stone is a multiplication by a fixed factor: 1 lb = 0.07142857 st. The table below covers the values people look up most often, and the formula section shows exactly where that factor comes from.
Because one pound works out to 0.07142857 st, the stone is the much smaller unit of the two: a figure given in stone always carries a smaller number than the same measurement in pound. A chart drawn in lb can hide that, so check which label the axis uses before you compare two readings.
Cooking and shipping are the two places this pair appears most: a kitchen scale reads in pounds while a recipe or label is written in stone, and a courier tariff built on stone still has to be checked against a scale showing pounds.
The conversion factor used here is 0.07142857 st per pound (8 significant digits as shown). Kept to seven figures it covers professional measurement; if you round it to two or three decimals for a spreadsheet, the error scales with the input — at a value of 1,000 lb a factor rounded to three decimals can be off by a measurable amount. The reverse direction uses 14 lb per st, the exact reciprocal, so a round trip through both pages returns your original number.
Pounds to Stone formula
Use this formula to convert any pound value to stone:
Worked example: 100 lb × 0.07142857 = 7.142857 st.
Pounds to Stone conversion table
| Pounds (lb) | Stone (st) |
|---|---|
| 0.5 lb | 0.03571429 st |
| 1 lb | 0.07142857 st |
| 2 lb | 0.1428571 st |
| 5 lb | 0.3571429 st |
| 10 lb | 0.7142857 st |
| 20 lb | 1.428571 st |
| 50 lb | 3.571429 st |
| 100 lb | 7.142857 st |
| 500 lb | 35.71429 st |
| 1000 lb | 71.42857 st |
How to convert pounds to stone
Multiply the pound value by 0.07142857 to get the equivalent in stone. This single factor works for every value in the table above and for anything else you need — there is no per-value adjustment, which is why a conversion table and a calculator always agree.
If you need the opposite direction, use the Stone to Pounds converter instead of dividing by hand; both pages use the same source factors. For every other lb conversion in one place, see the lb conversion hub.
Frequently asked questions
How many stone are in 1 pound?
1 pound = 0.07142857 st.
What is 100 pounds in stone?
100 lb = 7.142857 st.
Is converting pounds to stone the same as stone to pounds?
No — the direction changes the multiplier. The reverse conversion (1 st = 14 lb) is on the Stone to Pounds page.
Related conversions
Try the ConvBolt Unit Converter for any other weight unit, browse the Weight conversions, or read our conversion guides.