Stones to Kilograms Converter

What is Stone (st)?

The stone is a unit of weight in the imperial system, commonly used in the United Kingdom and Ireland for measuring body weight. One stone is equal to 14 pounds (lbs) or approximately 6.35 kilograms.

The stone is primarily used for personal weight measurements and is less common in scientific or commercial contexts. It remains popular in British and Irish culture for expressing human body weight.

What are kilograms (kg)?

The kilogram (kg) serves as a fundamental unit within the metric system for measuring object weight. A single kilogram consists of 1000 grams, positioning it as a higher-level measurement unit compared to grams, which are employed for lighter weights.

The kilogram finds widespread application in physics and engineering disciplines, as well as in everyday usage across nations that utilize the metric system.

How do you convert stones to kilograms (kg)?

The Conversion Formula

To convert stones to kilograms, multiply the number of stones by 6.35029:
Formula: Kilograms = Stones × 6.35029

Step-by-Step Process

• Take your weight in stones
• Multiply by 6.35029
• The result is your weight in kilograms

Examples

• 10 st to kg:
  10 st × 6.35029 = 63.50 kg
• 5 st to kg:
  5 st × 6.35029 = 31.75 kg
• 8 st to kg:
  8 st × 6.35029 = 50.80 kg
• 12 st to kg:
  12 st × 6.35029 = 76.20 kg
• 15 st to kg:
  15 st × 6.35029 = 95.25 kg

Quick Reference

• 1 st = 6.35029 kg
• 1 kg = 0.157473 st

Why This Conversion Works

The conversion factor 6.35029 is the exact number of kilograms in one stone. This is a standard used primarily in the UK and Ireland for measuring body weight. Since one stone equals 14 pounds, and one pound equals approximately 0.453592 kilograms, one stone equals 14 × 0.453592 = 6.35029 kilograms.

Tips for Mental Math

For quick calculations, you can use 6.35 as an approximation:

10 st ≈ 63.5 kg (10 × 6.35)
5 st ≈ 31.75 kg (5 × 6.35)

This simple multiplication makes converting stones to kilograms straightforward for everyday use.

Stones to Kilograms Conversion Table

The conversion of stones to kilograms for certain values are provided below: