# Convert Stones to Kilos (st to kg)

Welcome to the internet's favourite converter site. Here you can convert stones to kilos (st to kg) with absolute ease and accuracy. Convert Stones to Kilos by using the form below. If you want to convert kilos to stones, click here.

Alternatively, if you are looking for a calculator that converts stone to kilos that would be a good place to start. It also converts many different kinds of weight as well!

#### Enter Stones and pounds here

kg =
 st 0.15747

### st -> kg

 kg = st * 6.35029
 kg = * 6.35029
 kg =

### st -> lb

 lb = ( st * 14 ) + lb
 lb = ( * 14 ) + lb
 lb = +
 lb =

### lb -> kg

kg =
 lb 2.204623
kg =
 2.204623
 kg =

### Stones Information

• st
• Weight
##### Worldwide use:
• The stone is also used in horse racing to describe the weight that a horse has to carry (not necessarily just the jockey, this weight can also include penalties and suchlike).
• The stone is still habitually used to express human bodyweight in some sports in the UK and Ireland, such as boxing and wrestling.
• A British or Irish person will commonly express their weight in stone and pounds (eg. 12 st 6 lbs) instead of purely in pounds as would be the case in the United States (174 lbs).
• The stone is now used almost exclusively in the UK and Ireland, as a popular - if informal - way of expressing a person's weight. The stone has not been officially recognised as a unit of weight in the UK since 1985.
##### Description:

The stone is a unit of weight in the imperial system used informally in the UK and Ireland, almost exclusively as a measure of body weight. Although sanctioned by the EU for use as a supplementary unit it is essentially obsolete outside the UK and Ireland.

##### Definition:

A stone is a unit of weight equal to 14 pounds averdupois (or international lbs). By turn, this makes a stone equivalent to 6.35029kg.

##### Origin:

The name 'stone' derives from the practice of using stones as weights, a common practice worldwide for two millennia or more.

The actual unit of the stone was commonly used as a measure of weight for trade purposes across Europe until the 19th century when most countries adopted the metric system, however, the actual weight of the stone varied from country to country, region to region, and even depending on what was being weighed or traded.

In 1389 in England a stone of wool was defined as weighing fourteen pounds, and although a stone of other materials could weigh significantly more or less (in pounds), the stone in general usage became accepted as weighing equal to 14 lbs.

##### Common references:
• A 5ft 8in (173cm) tall woman of average build would be expected to weigh between eight and twelve stone.
• A 6ft 0in (183cm) tall man of average build would normally weigh between ten and thirteen stone.
##### Multiples:
• 2 stone = 1 quarter
• 8 stone = 1 hundredweight
• 160 stone = 1 long ton

### Kilograms Information

##### Abbreviation/Symbol:
• kg
• kilo (informal)
##### Unit of:
• Mass
• Weight (in non-scientific affairs)
• Global
##### Description:

The kilogram is the base unit of mass in the International (SI) System of Units, and is accepted on a day-to-day basis as a unit of weight (the gravitational force acting on any given object).

The kilogram is almost exactly equal to the mass of one litre of water.

##### Definition:

The kg is defined as being equal to the mass of the International Prototype of the Kilogram (IPK), a block of platinum-iridium alloy manufactured in 1889 and stored at the International Bureau of Weights and Measures in Sèvres, France.

It is the only SI unit that is defined by a physical object rather than a fundamental physical property that can be reproduced in laboratories.

##### Origin:

For a short period the grave (also a metallic reference standard) was used to define one thousand grams, until it was replaced by the kilogram in 1799.

In 1795 metric measurement systems were introduced in France and the gram was defined as "the absolute weight of a volume of pure water equal to a cube of one hundredth of a metre, and at the temperature of the melting ice".

The kilogramme (derived from the Greek chilioi [thousand] and gramma [a small weight] was named as a more practical measure of mass for larger quantities in trade, and came to be used as the base unit of mass in all metric measurement systems.

The International (SI) System of Units published in 1960 used the kilogramme as the base unit of mass, and has been adopted by almost every country on earth (with a few notable the exceptions such as the United States).

##### Common references:
• A kilogram is the approximate weight of a one litre bottle of soft drink.
• Sugar is commonly sold in 1kg measures.
• A typical basketball weighs approximately 1kg.
##### Usage context:

The kilogram is used globally on a day-to-day basis as a unit of measurement for mass and weight.

It is also the bass unit of mass for all m.k.s. measurement systems, where the metre, the kilogram and the second are used in relation to one another in order to define other concepts, such as the newton for force and the pascal as a measurement of pressure.

##### Component units:
• 1kg = 1000g (grams or grammes)
##### Multiples:
• 1000kg = 1 metric tonne (US: metric ton)
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