18 stones to kilograms

Q: How many kilograms is 18 stones?

18 stones is 114.30528 kilograms.

18 stones = 114.30528 kilograms

Rounded to a practical precision: 114.3 kg.

stones

kilograms

How the calculation works

One stone is 6.35029 kilograms, so:

18 st × 6.35029 = 114.30528 kg

Reversing it, 114.30528 kilograms ÷ 6.35029 returns 18 stones.

Nearby values

Stones	Kilograms
14 st	88.9041 kg
15 st	95.2544 kg
16 st	101.60469 kg
17 st	107.95498 kg
18 st	114.30528 kg
19 st	120.65557 kg
20 st	127.00586 kg
21 st	133.35616 kg
22 st	139.70645 kg

About these units

Stone (st) — A stone is 14 pounds, about 6.35 kilograms, and is still how body weight is quoted in the United Kingdom and Ireland.

Kilogram (kg) — The kilogram is the SI base unit of mass, defined since 2019 in terms of the Planck constant.

Frequently asked questions

How many kilograms is 18 stones?

18 stones is 114.30528 kilograms.

How do I convert stones to kilograms myself?

Multiply by 6.35029. To go back, divide by 6.35029 — or multiply by 0.157473.

Is this figure exact?

The conversion factor between the stone and the kilogram is fixed by definition. The figure above is rounded for readability; the converter carries full precision.

Convert other values

Full stones to kilograms converter · All weight converters