Convert Stones to Kilograms

1 st = 6.35029 kg

Conversion Formula

1 st = 6.35029 kg

Common Stone to Kilogram Conversions

Stones (st)Kilograms (kg)
0.53.17515
16.35029
212.7006
319.0509
425.4012
531.7515
1063.5029
1595.2544
20127.006
25158.757
50317.514
75476.272
100635.029
2501587.57
5003175.14
7504762.72
10006350.29
250015875.7
500031751.5
1000063502.9

How to Convert Stones to Kilograms

To convert stones to kilograms, multiply the stone value by 6.35029.

For example, 5 stones is equal to 5 × 6.35029 = 31.7515 kilograms.

The stone (st) and the kilogram (kg) are both units of weight. Understanding the relationship between these units is helpful for everyday conversions, scientific calculations, and engineering applications.

Understanding Stones and Kilograms

What is a Stone (st)?

The stone (st) is a British unit of mass equal to 14 pounds (6.35 kg).

Stones are commonly used in the UK and Ireland for expressing body weight.

What is a Kilogram (kg)?

The kilogram (kg) is the base unit of mass in the International System of Units (SI). It is defined by the fixed numerical value of the Planck constant, h = 6.62607015×10⁻³⁴ J·s.

Kilograms are used worldwide for measuring body weight, food, and everyday objects. It is the standard unit in science, medicine, and international trade.

Frequently Asked Questions

How many Kilograms are in 1 Stone?

1 Stone (st) is equal to 6.35029 Kilograms (kg).

How do I convert Stones to Kilograms?

To convert Stones to Kilograms, multiply the value by 6.35029. For example, 10 st = 63.5029 kg.

How many Stones are in 1 Kilogram?

1 Kilogram (kg) is equal to 0.157473 Stones (st).

What is the formula to convert Stones to Kilograms?

The formula is: Kilograms = Stones × 6.35029. This means you multiply the number of Stones by 6.35029 to get the equivalent in Kilograms.

How much is 100 Stones in Kilograms?

100 Stones (st) is equal to 635.029 Kilograms (kg). You can use the converter above for any custom value.

What is a Stone?

The stone (st) is a British unit of mass equal to 14 pounds (6.35 kg). Stones are commonly used in the UK and Ireland for expressing body weight.

What is a Kilogram?

The kilogram (kg) is the base unit of mass in the International System of Units (SI). It is defined by the fixed numerical value of the Planck constant, h = 6.62607015×10⁻³⁴ J·s. Kilograms are used worldwide for measuring body weight, food, and everyday objects. It is the standard unit in science, medicine, and international trade.

Is converting Stones to Kilograms a common conversion?

Yes, converting between Stones and Kilograms is a common weight conversion used in everyday life, science, and engineering. Our converter provides instant, accurate results.

Related Conversions

Conversion factors sourced from SI (BIPM) and NIST standards. Reviewed by the MicroCalcTools engineering team.

Last updated: April 2026