At One Place

Pounds to stone

1 pound in stone
1 lb = 0.071429 st
st = lb × 1/14

To convert pounds to stone, multiply by 0.07142857143. The table below gives the values people look up most often, and the converter works for any number.

Pounds to stone table

Common pound values converted to stone.
Pounds Stone
1 lb 0.071429
2 lb 0.14286
3 lb 0.21429
4 lb 0.28571
5 lb 0.35714
10 lb 0.71429
15 lb 1.071429
20 lb 1.428571
25 lb 1.785714
30 lb 2.142857
40 lb 2.857143
50 lb 3.571429
75 lb 5.357143
100 lb 7.142857
250 lb 17.85714
500 lb 35.71429
1,000 lb 71.42857

How the conversion works

The relationship is st = lb × 1/14. Both units measure mass, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.

Common questions

How many stone are in one pound?
One pound equals 0.071429 stone. st = lb × 1/14.
How do you convert pounds to stone?
Use st = lb × 1/14. So 10 lb is 0.71429 st.
How many pounds are in one stone?
One stone equals 14 pounds, which is the reverse of the conversion above.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked