---
title: "Stone to Kilograms — st to kg converter"
description: "1 stone = 6.350293 kilograms. Convert stone to kilograms with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/stone-to-kg/
site: "At One Place"
---

# Stone to kilograms

**1 stone in kilograms: 1 st = 6.350293 kg**

kg = st × 6.35029318

To convert stone to kilograms, multiply by 6.35029318. The table below gives the values people look up most often, and the converter works for any number.

## Stone to kilograms table

*Common stone values converted to kilograms.*

| Stone | Kilograms |
| --- | --- |
| 1 st | 6.350293 |
| 2 st | 12.70059 |
| 3 st | 19.05088 |
| 4 st | 25.40117 |
| 5 st | 31.75147 |
| 10 st | 63.50293 |
| 15 st | 95.2544 |
| 20 st | 127.0059 |
| 25 st | 158.7573 |
| 30 st | 190.5088 |
| 40 st | 254.0117 |
| 50 st | 317.5147 |
| 75 st | 476.272 |
| 100 st | 635.0293 |
| 250 st | 1,587.5733 |
| 500 st | 3,175.1466 |
| 1,000 st | 6,350.2932 |

## How the conversion works

The relationship is kg = st × 6.35029318. 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 kilograms are in one stone?

One stone equals 6.350293 kilograms. kg = st × 6.35029318.

### How do you convert stone to kilograms?

Use kg = st × 6.35029318. So 10 st is 63.50293 kg.

### How many stone are in one kilogram?

One kilogram equals 0.15747 stone, which is the reverse of the conversion above.

## Related pages

- [Kilograms to Stone](https://atoneplace.net/convert/kg-to-stone/)
- [Stone to Grams](https://atoneplace.net/convert/stone-to-grams/)
- [Stone to Milligrams](https://atoneplace.net/convert/stone-to-mg/)
- [Stone to Tonnes](https://atoneplace.net/convert/stone-to-tonnes/)
- [Stone to Pounds](https://atoneplace.net/convert/stone-to-lbs/)
- [Stone to Ounces](https://atoneplace.net/convert/stone-to-oz/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)