Convert kilograms to stones accurately for body weight, health records, and fitness tracking. Essential for UK and Ireland users. Precise calculator with real-world examples.
1 kilogram equals 0.157473 stone
Formula: st = kg × 0.157473
With 1 stone equaling approximately 6.35029 kilograms, converting between these units is essential for health professionals, fitness enthusiasts, and anyone comparing body weight across regions. The kilogram dominates scientific and medical contexts worldwide, while the stone remains deeply embedded in UK and Irish culture. Understanding this conversion prevents medical errors and ensures accurate fitness tracking.
Accurate weight conversion is critical in healthcare where dosage calculations and medical records depend on precise measurements. A 5% error in converting a patient's weight could result in incorrect medication doses. In fitness, misunderstanding the conversion leads to unrealistic goal-setting: someone targeting 70 kg might not realize that's 11 stone 1 pound, not 10 stone. For international athletes and expatriates, this conversion bridges health systems and personal health goals.
Healthcare professionals in the UK and Ireland must convert patient weights between kilograms (used in medical literature, drug dosing, and international standards) and stones (used in patient communication and historical medical records). Accurate conversion prevents medication errors, ensures proper anesthesia dosing, and maintains consistent medical records. Hospital systems often require entry in both units for international patient data compatibility.
Fitness professionals, personal trainers, and athletes in UK, Ireland, and Commonwealth nations work with body weight targets expressed in stones while consulting international training programs and nutrition science published in kilograms. Gyms maintain records in both units, and athletes competing internationally must understand their weight in both systems. Accurate conversion ensures realistic goal-setting and proper training progression tracking.
| kilograms | stones |
|---|---|
| 10 kg | 1.57473 st |
| 50 kg | 7.87365 st |
| 100 kg | 15.7473 st |
| 500 kg | 78.7365 st |
| 1000 kg | 157.473 st |
Formula: st = kg × conversion factor
The kilogram is a widely used unit for measuring weight. It is commonly used in various applications and industries worldwide.
The stone is a widely used unit for measuring weight. It is commonly used in various applications and industries worldwide.
This kilogram to stone 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.
One stone equals precisely 6.35029318 kilograms. For practical purposes, 6.35 kg is sufficiently accurate. This means a person weighing 10 stones weighs 63.5 kg. The stone originated from medieval grain measurements and was standardized to 14 pounds avoirdupois, which converts to this kilogram equivalent. Remember: 1 stone = 14 pounds = 6.35029 kg exactly.
The UK never fully metricated body weight measurements despite adopting the metric system for most other purposes. The stone has deep cultural significance in British and Irish society—it's what people grew up with and what their families use. Healthcare systems officially use kilograms for medical records and drug calculations, but patients communicate in stones because it's familiar and traditional. This creates a unique dual-system where medical professionals must work in both units.
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