Convert stones to kilograms accurately for body weight, fitness tracking, and health measurements. Precise calculator with real-world examples for healthcare and sports.
1 stone equals 6.3502949712014125 kilogram
Formula: kg = st × 6.35029
The stone-to-kilogram conversion is essential for understanding body weight across different measurement systems. With 1 stone equaling 6.35029 kilograms, this conversion is critical for healthcare professionals, fitness enthusiasts, and anyone comparing their weight internationally. The UK and Ireland still commonly use stones for personal weight measurement, while most of the world uses kilograms.
Accurate weight conversion is crucial for medical diagnoses, pharmaceutical dosing, fitness goals, and international health records. A 1% error in converting body weight can lead to incorrect medication dosages or misdiagnosed health conditions. For a person weighing 12 stone (76.2 kg), a conversion error could mean the difference between proper and improper medical treatment.
Medical professionals in UK and Ireland frequently convert patient weights from stones to kilograms for international medical records, pharmaceutical calculations, and clinical research. Accurate conversion is essential for determining correct medication dosages, which are typically prescribed in mg/kg body weight. Hospitals maintain records in both units for patient safety and regulatory compliance.
Personal trainers, nutritionists, and sports scientists in UK and Commonwealth countries use stone-to-kilogram conversions for training programs, nutrition planning, and athletic performance analysis. Accurate weight tracking is essential for calculating body composition percentages, determining appropriate training loads, and monitoring progress toward fitness goals.
| stones | kilograms |
|---|---|
| 1 st | 6.350295 kg |
| 10 st | 63.50295 kg |
| 25 st | 158.757374 kg |
| 50 st | 317.514749 kg |
| 100 st | 635.029497 kg |
Formula: kg = st × conversion factor
The stone is a widely used unit for measuring weight. It is commonly used in various applications and industries worldwide.
The kilogram is a widely used unit for measuring weight. It is commonly used in various applications and industries worldwide.
This stone to kilogram converter uses high-precision conversion factors to ensure accurate results for professional and academic use.
Our calculator provides results with up to 10 decimal places for maximum accuracy.
10 stone equals exactly 63.5029 kilograms. To convert any weight in stones to kilograms, multiply the stone value by 6.35029. For example, 10 stone × 6.35029 = 63.5029 kg. This conversion is commonly needed when converting UK body weight measurements to international medical records or fitness applications that use metric units.
The UK officially adopted the metric system in 1965, but personal body weight remained culturally entrenched in stones and pounds. Unlike other measurements (distances, volumes, temperatures), weight in stones is deeply embedded in personal identity and social conversation. Healthcare providers use kilograms professionally, but patients continue to think and discuss their weight in stones, creating a persistent dual system.
Browse our collection of 6 Weight converters. Each converter provides instant, accurate results for professional and academic use.