Convert pound to stone
1 pound = 0.07142857 stone. Enter any value below for an exact conversion.
1 lb =
0.07142857 st
stone
Need the reverse? Convert stone to pound →
Formula
1 pound = 0.07142857 stone stone = pounds × 0.07142857 pound = stone × 14
pound to stone conversion table
About converting pounds to stone
Pounds to stone is a UK body-weight conversion: weight is commonly spoken in stone and pounds there, while scales and forms often show pounds alone. One stone is 14 pounds, so 168 lb is exactly 12 stone and 175 lb is 12 st 7 lb.
Method & sources
Conversions use exact legal definitions rather than rounded approximations: 1 inch = 2.54 cm and 1 pound = 0.45359237 kg (fixed by the 1959 international yard and pound agreement), 1 mile = 1.609344 km, and 1 US liquid gallon = 3.785411784 litres. Temperatures convert with °F = °C × 9⁄5 + 32 and K = °C + 273.15. Results are rounded only for display.
- NIST Special Publication 811 — Guide for the Use of the SI
- NIST Handbook 44, Appendix C — General Tables of Units of Measurement
Page last updated: October 1, 2026
Frequently asked questions
How many stone are in a pound?
One pound equals 0.07142857 stone. So 10 pounds is 0.7142857 stone. Use the converter above for any value.
What is the formula to convert pounds to stone?
1 pound = 0.07142857 stone stone = pounds × 0.07142857 pound = stone × 14
Is the pound-to-stone conversion exact?
Yes. The conversion factor between pounds and stone is defined exactly, so results are precise — only rounded for display.
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