Kilogram Converter
Convert Kilogram to Stone (uk) and more • 73 conversions
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Unit Explanations
Kilogramkg
Source UnitThe kilogram, abbreviated as kg, is the SI unit of mass and is defined as being equal to the mass of the International Prototype of the Kilogram, which is a platinum-iridium cylinder kept at the International Bureau of Weights and Measures (BIPM) in Sèvres, France. This definition was established in 1889 and was the only base unit defined by a physical object. However, in 2019, the definition of the kilogram was redefined in terms of fundamental constants, specifically the Planck constant (h), which is set at exactly 6.62607015 × 10^-34 joule seconds. This redefinition allows for more precise measurements and ensures that the kilogram remains consistent and reproducible over time.
Current Use
Today, the kilogram is widely used across the globe as the standard unit of mass in scientific, commercial, and everyday contexts. It is employed in various industries including manufacturing, agriculture, and healthcare. For instance, in the food industry, products are often sold by mass, measured in kilograms. In healthcare, medication dosages may also be prescribed based on the patient’s weight in kilograms. While most countries use the kilogram as part of the metric system, some countries, such as the United States, still use imperial units for certain applications, though the metric system is increasingly adopted in scientific and technical fields. The versatility of the kilogram makes it a vital unit in international trade and commerce.
Fun Fact
The kilogram was the first unit of measurement to be defined by a physical artifact.
Stone (UK)st
Target UnitIn the United Kingdom, the stone is a traditional unit of weight that is primarily used to measure body weight. One stone is equivalent to 14 pounds or approximately 6.35 kilograms. The unit has historical significance, originating from the practice of using actual stones for weighing goods in markets. The stone remains in popular use, especially in the UK, for measuring human body weight, despite the global preference for the metric system. The stone is also subdivided into smaller units, with 1 stone being equal to 224 ounces.
Current Use
Today, the stone is predominantly used in the UK for measuring human body weight, especially in health and fitness contexts. Many scales in the UK display weight in stones and pounds rather than kilograms. The stone is less commonly used in scientific contexts or international trade, where metric units are preferred. Despite the metrication movement, the stone remains entrenched in British culture and is often used in everyday conversation.
Fun Fact
The stone was historically used to weigh goods in markets, leading to regional variations in its definition.
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📐Conversion Formula
= × 1.00000How to Convert
To convert to , multiply the value by 1.00000. This conversion factor represents the ratio between these two units.
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💡 Pro Tip: For the reverse conversion ( → ), divide by the conversion factor instead of multiplying.
Kilogram
force • SI Unit
Definition
The kilogram, abbreviated as kg, is the SI unit of mass and is defined as being equal to the mass of the International Prototype of the Kilogram, which is a platinum-iridium cylinder kept at the International Bureau of Weights and Measures (BIPM) in Sèvres, France. This definition was established in 1889 and was the only base unit defined by a physical object. However, in 2019, the definition of the kilogram was redefined in terms of fundamental constants, specifically the Planck constant (h), which is set at exactly 6.62607015 × 10^-34 joule seconds. This redefinition allows for more precise measurements and ensures that the kilogram remains consistent and reproducible over time.
History & Origin
The kilogram originated in the late 18th century during the period of the French Revolution, as part of the efforts to standardize measurements across France and eventually the world. The need for a uniform measurement system became apparent in the wake of the Revolution, as varying local measures were causing confusion and inefficiency in trade and governance. Thus, the metric system was born, with the kilogram being one of its foundational units. The first kilogram was defined as the mass of one liter of water at its maximum density, which is approximately equal to 1,000 cubic centimeters. This practical approach to defining mass allowed for easier adoption across various sectors.
Etymology: The term 'kilogram' is derived from the Greek word 'kilo', meaning 'a thousand', and the French word 'gramme', which itself comes from the Late Latin 'gramma', meaning 'small weight'.
Current Use
Today, the kilogram is widely used across the globe as the standard unit of mass in scientific, commercial, and everyday contexts. It is employed in various industries including manufacturing, agriculture, and healthcare. For instance, in the food industry, products are often sold by mass, measured in kilograms. In healthcare, medication dosages may also be prescribed based on the patient’s weight in kilograms. While most countries use the kilogram as part of the metric system, some countries, such as the United States, still use imperial units for certain applications, though the metric system is increasingly adopted in scientific and technical fields. The versatility of the kilogram makes it a vital unit in international trade and commerce.
💡 Fun Facts
- •The kilogram was the first unit of measurement to be defined by a physical artifact.
- •The International Prototype of the Kilogram lost mass over time, leading to the redefinition in 2019.
- •The kilogram is the only SI base unit with a prefix ('kilo') included in its name.
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Stone (UK)
weight • Non-SI
Definition
In the United Kingdom, the stone is a traditional unit of weight that is primarily used to measure body weight. One stone is equivalent to 14 pounds or approximately 6.35 kilograms. The unit has historical significance, originating from the practice of using actual stones for weighing goods in markets. The stone remains in popular use, especially in the UK, for measuring human body weight, despite the global preference for the metric system. The stone is also subdivided into smaller units, with 1 stone being equal to 224 ounces.
History & Origin
The stone as a unit of weight can be traced back to ancient times when actual stones were used as weights in marketplaces. This practice varied regionally, leading to different definitions of a stone based on local customs and the size of the stones used. The UK adopted a standard weight of 14 pounds for the stone in the 14th century, which became widely accepted and has remained consistent throughout history.
Etymology: The word 'stone' comes from the Old English 'stan', which means a solid, hard substance. This reflects the historical practice of using stones as a physical reference for weight.
Current Use
Today, the stone is predominantly used in the UK for measuring human body weight, especially in health and fitness contexts. Many scales in the UK display weight in stones and pounds rather than kilograms. The stone is less commonly used in scientific contexts or international trade, where metric units are preferred. Despite the metrication movement, the stone remains entrenched in British culture and is often used in everyday conversation.
💡 Fun Facts
- •The stone was historically used to weigh goods in markets, leading to regional variations in its definition.
- •Despite the metric system's prevalence, many British people still prefer to express their weight in stones and pounds.
- •The stone is sometimes humorously referred to as a 'stone of weight' in casual conversations.
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Frequently Asked Questions
How do I convert to ?▼
To convert to , multiply your value by 1. For example, 10 equals 10 .
What is the formula for to conversion?▼
The formula is: = × 1. This conversion factor is based on international standards.
Is this to converter accurate?▼
Yes! MetricConv uses internationally standardized conversion factors from organizations like NIST and ISO. Our calculations support up to 15 decimal places of precision, making it suitable for scientific, engineering, and everyday calculations.
Can I convert back to ?▼
Absolutely! You can use the swap button (⇄) in the converter above to reverse the conversion direction, or visit our to converter.