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Essential for body weight tracking and international fitness comparisons. Results update in real-time and can be shared via URL.\n\nStone (st)\n\nst\n\nKilograms (kg)\n\nkg\n\n—\n\nPopular Conversions:\n\n0.5 st 1 st 2 st 3 st 4 st 5 st 6 st 7 st 8 st 9 st 10 st 11 st 12 st 13 st 14 st 15 st 18 st 20 st 25 st 30 st\n\nYour recent:\n\n## Conversion Formula\n\n**st → kg:** `kg = st × 6.35029`\n\n**kg → st:** `st = kg × 0.15747`\n\n## Reference Table\n\nStone (st)Kilograms (kg)Notes\n\nShow more rows ↓\n\n## Frequently Asked Questions\n\n### How many kg in a stone?\n\nOne stone is equal to 6.35029 kilograms. This is the internationally recognized conversion factor.\n\n### Where is stone still used?\n\nStone is primarily used in the United Kingdom and Ireland for expressing body weight. The NHS and most UK scales show weight in stone and pounds.\n\n### How to convert stone and pounds to kg?\n\nMultiply the stone value by 6.35029, then add the remaining pounds multiplied by 0.4536. For example, 10 st 7 lbs = (10 × 6.35029) + (7 × 0.4536) = 66.68 kg.\n\n### What is the origin of the stone unit?\n\nThe stone was a medieval trade weight that varied by commodity and locality. It was standardized to 14 pounds in 1835 in the UK.\n\n### What is the best free stone to kg converter?\n\nTejji.com provides a completely free stone-to-kilograms converter that runs instantly in your browser — no registration, no app required, and precise to multiple decimal places.\n\n### Can I share my conversion result?\n\nYes. After converting, use the share button to send your result as a direct link, or click copy to paste the value anywhere you need it.\n\n### Body Weight Ranges (Adults)\n\nUnderweight (\u0026lt;8 st)\u0026lt;50.8 kg\n\nNormal (8-12 st)50.8-76.2 kg\n\nOverweight (12-15 st)76.2-95.3 kg\n\nVery heavy (\u0026gt;15 st)\u0026gt;95.3 kg\n\n### Related Conversions\n\n[⇄ Kilograms to Stone](/convert/kg-to-stone) [⇄ Kilograms to Pounds](/convert/kg-to-lbs) [⇄ Pounds to Kilograms](/convert/lbs-to-kg) [⇄ Stone to Pounds](/convert/stone-to-lbs)\n\n## Related Products\n\n[⚖️ Digital Bathroom Scales →](https://www.amazon.com/s?k=bathroom%20scale%20digital\u0026tag=tejji-20) [📱 Smart Body Scales →](https://www.amazon.com/s?k=body%20weight%20scale%20smart\u0026tag=tejji-20) [🧳 Luggage Scales →](https://www.amazon.com/s?k=luggage%20scale%20digital\u0026tag=tejji-20)\n\n*As an Amazon Associate, tejji.com earns from qualifying purchases.*\n\n### Key Facts\n\n- 📏 1 stone = 6.35029 kg\n- 📏 1 stone = 14 pounds\n- 🇬🇧 Used primarily in UK and Ireland\n- 📅 Legal unit in UK for body weight\n- ⚖️ Originally varied by commodity in medieval times\n\n[All mass conversions →](/convert/mass-conversion)\n\nCopied to clipboard!\n\n📱\n\nQuick Access\n\nInstall this tool on your device for instant access\n\nInstall App\n\n- Temperature\n- [Temperature](/convert/temperature-conversion)\n\n\u003c!--THE END--\u003e\n\n- Length\n- [Length](/convert/length-conversion)\n\n\u003c!--THE END--\u003e\n\n- Length (Metric)\n- [Length (Metric)](/convert/length-metric-conversion)\n\n\u003c!--THE END--\u003e\n\n- Metric\n- [Metric](/convert/metric-conversion)\n\n\u003c!--THE END--\u003e\n\n- Bytes\n- [Bytes](/convert/bytes-conversion)\n\n\u003c!--THE END--\u003e\n\n- Bytes Widgets\n- [Bytes Widgets](/convert/bytes-conversion/widgets)\n\n\u003c!--THE END--\u003e\n\n- Number\n- [Number](/convert/number-conversion)\n\n\u003c!--THE END--\u003e\n\n- Angle\n- [Angle](/convert/angle-conversion)\n\n\u003c!--THE END--\u003e\n\n- Astronomical\n- [Astronomical](/convert/astronomical-conversion)\n\n\u003c!--THE END--\u003e\n\n- Frequency\n- [Frequency](/convert/frequency-conversion)\n\n\u003c!--THE END--\u003e\n\n- Mileage\n- [Mileage](/convert/mileage-conversion)\n\n\u003c!--THE END--\u003e\n\n- Mass / Weight\n- [Mass / Weight](/convert/mass-conversion)\n- [kg → lbs](/convert/kg-to-lbs)\n- [lbs → kg](/convert/lbs-to-kg)\n- [kg → oz](/convert/kg-to-oz)\n- [oz → g](/convert/oz-to-g)\n- [g → oz](/convert/g-to-oz)\n- [kg → stone](/convert/kg-to-stone)\n- [stone → kg](/convert/stone-to-kg)\n\n\u003c!--THE END--\u003e\n\n- Mass (Metric)\n- [Mass (Metric)](/convert/mass-metric-conversion)\n\n\u003c!--THE END--\u003e\n\n- Speed\n- [Speed](/convert/speed-conversion)","footer":"\n\n📱 Install Tejji for quick access to this tool Install\n\nTools\n\n- [All Apps](/apps/)\n- [Converters](/convert/)\n- [IP Tools](/ip/)\n- [Calculator](/apps/calculator)\n\nExplore\n\n- [Time \u0026 Date](/time-date/)\n- [Postal Codes](/zip-codes/)\n- [Typing](/typing/)\n- [Extensions](/browser/chrome/extensions/)\n\nCompany\n\n- [About](/home/about)\n- [Contact](/home/contact)\n- [Privacy](/home/privacy)\n- [Terms](/home/terms)\n\nSupport\n\n- [Feedback](/home/contact)\n- [Buy me a coffee](https://buymeacoffee.com/tejji)\n\n© 2026 [Tejji.com](/) — Free online tools for everyone.\n\nWe use cookies for analytics and ads. By clicking \"Accept\", you consent to our use of cookies. [Privacy Policy](/home/privacy)\n\nReject Accept"},"metadata":{"title":"Stone to Kilograms Converter | Free Online Calculator | Tejji","description":"Free online stone to kilograms converter — instant, accurate, no sign-up required. Enter a weight in stone to get kg instantly. Includes formula, reference table, and FAQs.","imageUrl":"https://tejji.com/page/og-default.png","author":null,"published":null,"modified":null},"rate":{"price":{"priceMicros":0,"currency":""},"license":{"cuid":"","licenseType":"","licensePath":"","permissions":[],"validUntil":""},"error":""}}]