Stone to KG Converter

Convert your weight from stones to kilograms instantly and accurately without any page reloads.

st
kg

Enter a weight to see conversion

Quick Answer

1 stone = 6.35029 kg

stone × 6.35029 = kg

Quick Reference Chart (1–15 Stone)

Stone (st) Kilograms (kg)
1 6.35
2 12.70
3 19.05
4 25.40
5 31.75
6 38.10
7 44.45
8 50.80
9 57.15
10 63.50
11 69.85
12 76.20
13 82.55
14 88.90
15 95.25

What is a Stone?

The stone (st) is a unit of mass traditionally used in the 🇬🇧 UK and 🇮🇪 Ireland, primarily for measuring human body weight. One stone is equal to exactly 14 pounds or 6.35029 kilograms. While the UK officially transitioned to the metric system decades ago, the stone remains deeply embedded in everyday British culture for weight measurement.

The Conversion Formula

To convert stones to kilograms yourself, simply multiply your stone value by the exact conversion factor of 6.35029 (or 6.35 for a mental estimate).

Visual Formula

STONE
×
6.35029
=
KG
10 stone × 6.35029 = 63.50 kg

Why Convert to Kilograms?

Understanding your weight in kilograms is essential in the modern world. The NHS and medical professionals strictly use metric measurements for medical records, BMI calculations, and medication dosages. Furthermore, almost all modern gym equipment, barbells, and digital fitness tracking apps default to kilograms worldwide.

Frequently Asked Questions

How many kg is a stone?

One stone is exactly 6.35029 kilograms.

How do I convert stone to kg?

Multiply your stone value by 6.35029 to get the weight in kilograms.

What is 10 stone in kg?

10 stone is equal to 63.50 kilograms.

What is 14 stone in kg?

14 stone is equal to 88.90 kilograms.

Is stone used outside the UK?

The stone is primarily used in the UK and Ireland for measuring human body weight, and is rarely used elsewhere.

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