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Stone to Kg

Welcome to stone to kg, our article about the stones to kilograms conversion.

For the imperial and English unit of mass stone we use the abbreviation st, and for the metric unit of mass kilogram we use the symbol kg.

So, if you have been looking for st to kg or how many kg in a stone, then you have come to the right page, too. 🙂

Note that the plural of stone is either stones or stone – without the trailing “s”.

Read on to learn everything about stones to kilos.



How many Kg in a Stone?

We consider that a stone equals 14 pounds known as international avoirdupois pound, defined as 0.45359237 kg.

Thus, the formula is:

[kg] = [st] × 6.35029318

Insert 1 in the [st] field of our formula above, and it follows that the answer to the question how much is a stone in kg is 6.35029318 kilograms.

Similarly, replace the stone placeholder with 3.5 if you want to change 3 1/2 stones to kilograms.

The result of this example mass conversion will be approximately 22.233 kg.

Here you can convert kg to stone.

Now, take a moment to have a look at our search form in the sidebar.

Assumed x stands for your mass in stone, there you might look up x stone into kg for example.

In the following part of our article we are going to have another look at the math, and also discuss stones to kg and grams.

How to Convert Stones to Kg?

To change the “weight” unit to kilograms multiply the mass in stones by 6.35029318, which is equal to 14 international avoirdupois pounds in a stone weight.

In case you want to convert the mass to kg and grams combined, then do the math as explained above, taking into account that one kilogram is thousand grams.

Thus, the integer part of the conversion denotes the kg and the first three decimals of the decimal part of the conversion stand for the grams, as explained in the following example:

4 st = 4 × 6.35029318 kg = 25.40117272 kg = 25 kilograms and 401 grams, approximately. The exact gram part is 401.17272 g.

Frequent conversions on our site include:We recommend to always use our weight converter at the top of this page.

Frequently Asked Questions

Is it better to weigh yourself in stone or KG?

People in the UK tend to use stones and lbs for their body mass, elsewhere pounds or kilograms is recommended

Do British people use kg or stone?

In the UK and Ireland the unit stone is frequently used for human body weights

Why do British use stones for weight?

The use of the stone weight measurement in the UK is a custom

If something remains unclear leave us a comment using the form at the bottom of this article.

About our App

Our calculator at the beginning of this article is straightforward:

Enter the mass using a decimal point for fractions, then our tool does the math for you automatically.

Note that our app works both ways!

If you need the result in kilograms and grams combined, then proceed as explained in our example above.

We would like to suggest to you bookmarking our site or installing it onto your home.

Ahead is the summary of our page.


The following image sums all up:
Observe that our website is also an app; instead of bookmarking us you may simply install our site onto your home screen.

For questions and comments you could also send us an email with a meaningful subject line, and if you find our article and the calculator useful please hit the like buttons.Thanks for visiting stones to kilos.

Here you can convert stone to pounds and vice versa.

– Article written by Mark, last updated on February 29th, 2024