Stone to KG Converter

Quick Reference Chart (1–15 Stone)

If your weight falls outside this preview, view our comprehensive 1 to 100 stone table, or calculate exact figures backwards using the kg to stone calculator.

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. If you know your exact weight in mixed units, our stone and lbs to kg calculator makes finding your metric equivalent effortless.

Stone to Kilogram 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). If you prefer not to do the math, simply consult our visual weight chart, or refer to the reverse formula for going from metric back to imperial.

Why Convert Stone to KG?

While the stone remains the cultural standard for body weight in the UK, kilograms act as the global standard for medical and scientific measurement. Converting is essential for accurately using a BMI calculator, monitoring health trends, or setting up international fitness tracking apps. If you already know your metric weight, you can easily convert kg to stone back to imperial, or use our mixed unit tool for applying precise pounds.

How to Use the Stone to KG Calculator

1. Enter value: Type your metric or imperial weight into the converter tool.
2. Instant results: The opposite field calculates and updates instantly as you type.
3. Quick reference: Use the interactive chart above for extremely fast lookups.

Stone to KG FAQs

Find answers to the most common queries below. For other calculations, use our metric to stone converter, explore our stones and pounds tool, or browse the interactive reference chart.