Kilogram to Stone (kg to st)
Result
0.1574730444 Stone
Formula
st = kg × 0.1574730444
1 kg = 0.1574730444 st, and 1 st = 6.35029318 kg.
The kilogram is the SI base unit of mass, defined through the Planck constant since 2019. The international avoirdupois pound is exactly 0.45359237 kg; the ounce is 1/16 lb and the stone 14 lb.
Worked examples
- 1 kg × 0.1574730444 = 0.15747304 st
- 10 kg × 0.1574730444 = 1.5747304 st
- 100 kg × 0.1574730444 = 15.747304 st
Common mistakes
- Precious metals use the troy ounce (31.1034768 g), about 10% heavier than the avoirdupois ounce (28.349523125 g) used for food and parcels.
- "Ton" is ambiguous: the metric tonne used here is 1,000 kg, the US short ton 907.18474 kg and the UK long ton 1,016.0469088 kg.
- Kilograms and pounds measure mass. Pound-force (lbf) and newtons measure force — they are not interchangeable with kg.
Kilogram to Stone table
| Kilogram (kg) | Stone (st) |
|---|---|
| 1 | 0.15747304 |
| 2 | 0.31494609 |
| 5 | 0.78736522 |
| 10 | 1.5747304 |
| 20 | 3.1494609 |
| 50 | 7.8736522 |
| 100 | 15.747304 |
| 1,000 | 157.47304 |
The units
- Kilogram (kg)
- The SI base unit of mass, defined through the Planck constant since May 2019.
- Stone (st)
- 14 pounds, exactly 6.35029318 kg. Used for body weight in the UK and Ireland.
Sources for these factors
- The International System of Units (SI Brochure), 9th edition — BIPM
- Handbook 44 (2024), Appendix C: General Tables of Units of Measurement — NIST
- Guide for the Use of the International System of Units (SP 811), Appendix B: conversion factors — NIST
Last reviewed against these sources. An automated check recomputes every factor from its definition on each build. How we check accuracy