Stones to Kilograms (st to kg) Converter – 8, 10, 12, 14 stone in kg

Convert stones to kilograms and kilograms to stones. Built for body weight conversions.
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Stones to Kilograms (st to kg) – Instant Calculator

Stone (st)

Kilograms (kg)

Common Conversion Examples

8 st = 50.802345 kg

8 st = 50.802345 kg

10 st = 63.502932 kg

10 st = 63.502932 kg

12 st = 76.203518 kg

12 st = 76.203518 kg

14 st = 88.904105 kg

14 st = 88.904105 kg

Stones to Kilograms: Definition, History, Uses, and Examples

Definition

A stone (st) is an imperial unit used mainly for body weight in the UK and Ireland. 1 stone equals 6.35029318 kilograms. The st to kg formula is:

Kilograms (kg) = Stones (st) × 6.35029318

Origin or History

The stone dates back to traditional European trade weights; the kilogram is the international SI base unit. Stone persists culturally for body weight; most other domains use kg.

Current Use

  • Health & fitness: record and convert body weight.
  • Media & sports: athlete profiles in stones and pounds.
  • International comparison: switch between st and kg for global audiences.

Examples

Stones (st)Kilograms (kg)Example Use
8 st50.8023 kgLight adult
10 st63.5029 kgAverage adult
12 st76.2035 kgHeavier adult
14 st88.9041 kgHeavy adult

Step-by-step example

Convert 9 st to kilograms: 9 × 6.35029318 = 57.1526 kg.

Frequently Asked Questions

How many kilograms are in one stone?
Exactly 6.35029318 kg.
Is stone still used outside the UK?
Rarely. Most countries use kilograms or pounds.
How do I convert kilograms to stones?
Divide kilograms by 6.35029318.