Stones to Kilograms Converter | UK Weight to Metric Calculator
Convert British stones to kilograms instantly with our free online tool. Ideal for Canadian medical forms in metric, UK fitness plans, boxing weigh-ins, and Woodbine race cards. Accurate st to kg results in real-time.
Canadian Weight Converter: Metric & ImperialThe quick answer for 1 Stones — type any value below for the exact result
Stones
Kilograms
st to kg Conversion Formula
To convert stones to kilograms, multiply the stone value by 6.35029. One imperial stone is defined as 14 pounds — the unit most Canadian bathroom scales actually read — and 14 pounds equal 6.35029 kilograms.
Stones and Kilograms Explained
Stones (st)
A stone (st) is an imperial unit of weight equal to 14 pounds, or 6.35029 kilograms — about the weight of a bowling ball or a car tire. Uniquely among surviving imperial units, it is used almost entirely for one purpose: human body weight. A typical British adult weighs somewhere between 8 st and 20 st, and UK bathroom scales, slimming clubs, and tabloids all speak in stones and pounds. The stone never caught on in Canada, where pounds rule the bathroom scale and kilograms rule the clinic.
Where it is used: The stone is the everyday body-weight unit in the United Kingdom and Ireland. It also lives on in horse racing handicaps — including the cards Canadian tracks like Woodbine publish — and in boxing broadcasts with British heritage.
Origin: Stones were regional market weights for wool and meat since medieval times; in 1385 England fixed the wool stone at 14 lb, and that value survived as the single legal stone.
Kilograms (kg)
A kilogram (kg) is the base unit of mass in the metric system, equal to 1000 grams. It covers the full human scale — a 4 kg house cat, a 32 kg golden retriever, a 70 kg adult, a 105 kg hockey defenceman — and is the unit medicine, science, and Canadian medical records use for body weight. One kilogram is 2.20462 lb, so 14 lb (one stone) makes 6.35029 kg.
Where it is used: Kilograms are the official unit for body weight across Canada, mandatory in hospital charts, medical records, and prescriptions from Vancouver Island to Newfoundland — even though everyday conversation still leans on pounds.
Origin: The kilogram was created in 1790s France as the mass of a litre of water and became the SI base unit of mass, redefined in 2019 using the Planck constant.
Stones to Kilograms Conversion Table
| Stones (st) | Kilograms (kg) |
|---|---|
| 0.5 st | 3.175145 kg |
| 1 st | 6.35029 kg |
| 2 st | 12.70058 kg |
| 3 st | 19.05087 kg |
| 4 st | 25.40116 kg |
| 5 st | 31.75145 kg |
| 6 st | 38.10174 kg |
| 7 st | 44.45203 kg |
| 8 st | 50.80232 kg |
| 9 st | 57.15261 kg |
| 10 st | 63.5029 kg |
| 11 st | 69.85319 kg |
| 12 st | 76.20348 kg |
| 13 st | 82.55377 kg |
| 14 st | 88.90406 kg |
| 15 st | 95.25435 kg |
| 16 st | 101.60464 kg |
| 17 st | 107.95493 kg |
| 18 st | 114.30522 kg |
| 20 st | 127.0058 kg |
Kilograms to Stones Conversion Table
| Kilograms (kg) | Stones (st) |
|---|---|
| 1 kg | 0.1574731233 st |
| 10 kg | 1.5747312327 st |
| 20 kg | 3.1494624655 st |
| 30 kg | 4.7241936982 st |
| 40 kg | 6.298924931 st |
| 50 kg | 7.8736561637 st |
| 55 kg | 8.6610217801 st |
| 60 kg | 9.4483873965 st |
| 65 kg | 10.2357530129 st |
| 70 kg | 11.0231186292 st |
| 75 kg | 11.8104842456 st |
| 80 kg | 12.597849862 st |
| 90 kg | 14.1725810947 st |
| 100 kg | 15.7473123275 st |
Stones to Kilograms in Everyday Objects
Common real-world examples that make Stones and Kilograms easy to picture at a glance.
| Stones (st) | Kilograms (kg) | |
|---|---|---|
| A house cat | 0.6298924931 st | 4 kg |
| A bowling ball | 0.9999543328 st | 6.35 kg |
| A beagle | 1.5747312327 st | 10 kg |
| A bag of dog food | 1.8896774793 st | 12 kg |
| A golden retriever | 5.0391399448 st | 32 kg |
| A washing machine | 11.0231186292 st | 70 kg |
When You Need Stones to Kilograms Conversions
Filling Out Medical Forms in Kilograms
A walk-in clinic in Ottawa or a hospital intake desk in Vancouver asks for weight in kilograms, but the British fitness report you brought quotes 15 st. Converting to 95.254 kg fills the box accurately — and matters for anesthesia and dosing.
Following British Weight-Loss Shows
UK programs celebrate milestones in stones while Canadian viewers track kilograms and pounds. A 20 st starting weight is 127.006 kg, the figure you can compare directly against your own bathroom scale at home.
Reading Horse Racing Handicaps
Race cards assign jockeys their carry in stones. A 10 st handicap at Woodbine in Toronto is 63.5029 kg including tack, the number international form guides print for bettors on both sides of the border.
Boxing Weights on Mixed Broadcasts
British fight promos quote fighters in stones while Canadian broadcasts use pounds and sanctioning bodies use kilograms. A 14 st 6 lb cruiserweight converts to 91.626 kg for the tale of the tape on fight night.
Related Weight Conversions
How to Use
-
1
Enter Your Weight in Stones
Type the stone value — for example, enter 12 for the classic 12 st (168 lb) reading on a British bathroom scale
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2
See the Kilogram Equivalent
The result appears instantly: 12 st = 76.2035 kg, the figure Canadian medical records and fitness apps actually want
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3
Copy or Reverse
Copy the result or click Swap to convert kilograms back to stones
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4
Check the Table
Browse the conversion table for common values like 10 st = 63.5029 kg or 14 st = 88.9041 kg
Why Use Be Converter?
Instant Conversion
Get accurate stone to kilogram results in real-time as you type — enter 12 and see 76.2035 kg before your Tim Hortons double-double has cooled
Exact Imperial Standard
Uses the defined relation of 1 st = 14 lb = 6.35029 kg, so a 10 st reading converts to 63.5029 kg exactly the way Canadian medical records and clinic charts expect
Body Weight Reference Table
Every whole stone from 6 st to 20 st at a glance — the range British BMI charts and UK bathroom scales actually cover
Swap with One Click
Toggle between st and kg instantly — ideal when a British relative quotes their weight in stones but your fitness app and family doctor want kilograms
Free & Unlimited
No registration required. Convert as many weights as you need, from Woodbine jockey lightweights to heavyweight boxers — always free
Completely Private
All calculations run locally in your browser. Your body weight data never leaves your device
Frequently Asked Questions
How many kilograms are in 1 stone?
How do I convert my weight from stones to kilograms?
What is 10 stone in kilograms?
What is 14 stone in kg?
Which countries still use stones for body weight?
What is 13 stone in kilograms?
How many stones is 70 kg?
Is a stone exactly 14 pounds?
About Stones to Kilograms Converter
Our free online stones to kilograms converter provides instant, accurate conversions between Britain's body-weight unit and the metric system that runs Canadian medicine and official paperwork. Most Canadians weigh themselves in pounds, yet every hospital chart, prescription record, and Health Canada BMI guideline is written in kilograms — while British TV shows, UK fitness plans, and relatives across the pond still speak in stones. Whether you are filling out intake forms at a walk-in clinic, following a British weight-loss program, comparing boxing weigh-ins, or reading a race card from Woodbine, this tool delivers reliable results. The stone equals 14 pounds or 6.35029 kilograms.
Expert Tips for st to kg Conversion
Anchor on two marks: 10 st = 63.5 kg and 11 st = 69.85 kg. Most adult weights fall within a stone of these, so interpolation gets easy — each stone adds 6.35 kg, or 14 lb on the scale most Canadians actually read.
British scales often show stones and pounds together. Convert both parts: 13 st 4 lb is 82.554 kg plus 1.814 kg (4 lb), totaling 84.368 kg for precise clinic records.
Canadian BMI calculators — from Health Canada and provincial health services — accept kilograms. If you only know 16 st, enter 101.605 kg rather than guessing; small errors shift you across BMI category boundaries.
Horse racing handicaps are written in stones, and Canadian tracks like Woodbine in Toronto follow the British convention. A 9 st carry is 57.1526 kg, the figure international form guides publish beside the imperial card.
For quick mental conversion, bridge through pounds: 14 st = 196 lb, halve it to 98, then take off 10 percent for about 88 kg — close enough for conversation. Save the exact 6.35029 factor for medical forms and competition weigh-ins.