Quick Answer
10 stone = 63.50 kg
(exactly 63.5029 kg)
Converting to the metric system reveals that 10 stones is exactly equal to 63.5 kilograms or with precise accuracy, 63.5029 kilograms. This page helps you:
People often look up the conversion of 10 stone to kilograms (63.5 kg) due to practical needs, such as a gym app that only accepts metric input, an NHS form that does not accept stone, or a boxing weigh-in specified in kilograms.
While the ‘stone’ remains a common unit of weight in everyday use across the UK and Ireland, healthcare providers, fitness platforms, and international publications predominantly rely on kilograms. This page bridges that gap by clearly outlining the precise conversion and all related units below.
It is very easy to convert stones to kilograms. You just need to follow these two steps.
Step 1: Convert stone to pounds.
Multiply the number of stones by 14 (since 1 stone = 14 pounds).
10 st × 14 = 140 lb
Step 2: Convert pounds to kilograms.
Multiply the pounds by 0.45359237 (this is the internationally accepted value for converting 1 pound to kilograms).
140 lb × 0.45359237 = 63.5029318 kg
Result:
10 stone = 63.50 kilograms
If you prefer, you can skip the pound step and convert stone directly to kilograms. The conversion factor used on this page follows the internationally recognized standards maintained by the International Bureau of Weights and Measures (BIPM).
Accuracy is important in situations such as following a medical diet, adhering to airline baggage restrictions, or participating in a weight class sport. In such cases, even a few hundred grams can make a difference to a person’s rank or eligibility.
Here are some real life examples that will help you better understand the difference between kilograms and stones. You can view all the examples provided below.
Most gyms display weight plates and body composition scales in kilograms (kg). So, people or trainers who think in stones convert their current or target weight to make it easier to track progress on gym equipment and fitness apps.
In the UK, medical professionals record a patient’s weight in kilograms (kg), whereas patients think and state their weight in stones. If someone weighs 10 stones, they will see it recorded as 63.5 kg in their NHS records, medication dosage calculations, or BMI reports.
Weight classes in boxing, MMA, and wrestling are usually set in kilograms internationally, while UK amateur boxing has historically used stone and pounds. A fighter at 10 stone (63.5 kg) needs to know both figures to compete across different federations.
A weight of 63.5 kg falls within or near the healthy weight range for the average height of most adults. However, this assessment can vary significantly depending on muscle mass, age, and body composition. Therefore, BMI alone should not be considered a comprehensive measure of health.
This table summarizes the conversion of stones to kg. Here, you can check the conversions of different stones easily.
| Stone (st) | Kilograms (kg) |
|---|---|
| 9.5 st | 60.33 kg |
| 9.6 st | 60.96 kg |
| 9.7 st | 61.60 kg |
| 9.8 st | 62.23 kg |
| 9.9 st | 62.87 kg |
| 10.0 st | 63.50 kg |
| 10.1 st | 64.14 kg |
| 10.2 st | 64.77 kg |
| 10.3 st | 65.41 kg |
| 10.4 st | 66.04 kg |
| 10.5 st | 66.68 kg |
There are about 63.5029 kilograms in 10 stones. You can use this formula to convert stones into kilograms: Kilograms = Stone × 6.35029
Yes, 63.5 kg is almost exactly equal to 10 stone. It makes 63.5 kg the standard rounded equivalent used in everyday weight measurements.
You can convert 10 stone to kg with this formula: Stones × 6.35 = Kilograms
Whether 10 stones (140 lbs or ~63.5 kg) is considered overweight depends entirely on your height. Body weight cannot be classified on its own. It must be evaluated using Body Mass Index (BMI).
12 stone is equal to 76.2 kg after rounding. If you need the exact value, it is 76.2035 kg.
The United Kingdom and Ireland are the countries that use the stone (abbreviated as st) for measuring human body weight.
For KG to Stone conversion divide the weight in kilograms with 6.35029
Example: To convert 60 kg into stones:
60 ÷ 6.35029 = 9.45 stones
Convert the decimal (0.45) into pounds: 0.45 × 14 = 6.3 pounds.