#Tonne kg weight converter how to#

This is at least in part due to the inconsistencies and lack of coherence that can arise through use of centimeter-gram-second systems, such as those between the systems of electrostatic and electromagnetic units. SI is a system based on the meter-kilogram-second system of units rather than a centimeter-gram-second system. Unlike the other SI base units, the kilogram is the only SI base unit with an SI prefix. History/origin: The name kilogram was derived from the French 'kilogramme,' which in turn came from adding Greek terminology meaning 'a thousand,' before the Late Latin term 'gramma' meaning 'a small weight.' The changes were intended to improve the definitions of SI base units, not to actually change how the units are used throughout the world. Even though the definition of the kilogram was changed in 2019, the actual size of the unit remained the same. The meter and the second are defined in terms of c, the speed of light, and cesium frequency, Δ νCs. It is currently defined based on the fixed numerical value of the Planck constant, h, which is equal to 6.62607015 × 10 -34 in the units of J Kilogramĭefinition: A kilogram (symbol: kg) is the base unit of mass in the International System of Units (SI). The UK also often uses both pounds and stones when describing body weight, where a stone is comprised of 14 pounds. Many versions of the pound existed in the past in the United Kingdom (UK), and although the UK largely uses the International System of Units, pounds are still used within certain contexts, such as labelling of packaged foods (by law the metric values must also be displayed).

This convenience could be the reason that the system was more popular than other systems of the time that used 10, 12, or 15 subdivisions.Ĭurrent use: The pound as a unit of weight is widely used in the United States, often for measuring body weight. This prototype weight could be divided into 16 ounces, a number that had three even divisors (8, 4, 2). It is a system that was based on a physical standardized pound that used a prototype weight. It was updated to its current form in 1959. The avoirdupois system is a system that was commonly used in the 13 th century. History/origin: The pound descended from the Roman libra, and numerous different definitions of the pound were used throughout history prior to the international avoirdupois pound that is widely used today. The avoirdupois pound is equivalent to 16 avoirdupois ounces. The international avoirdupois pound (the common pound used today) is defined as exactly 0.45359237 kilograms. Please visit all weight and mass units conversion to convert all weight and mass units.Definition: A pound (symbol: lb) is a unit of mass used in the imperial and US customary systems of measurement. Kilogram is the base unit of mass in the metric system. To convert UK long tons to kg, please visit UK long tons to kg converter.

#Tonne kg weight converter how to#

How to convert kilograms to UK long tons?ġ Kilogram is equal to 0.00098420652761 UK long ton. To convert US short tons to kg, please visit US short tons to kg converter. How to convert kilograms to US short tons?ġ Kilogram is equal to 0.0011023113109 short ton. To convert Metric tons to kg, please visit metric tons to kg converter. To convert kilograms to tonnes, multiply the kilogram value by 0.001 or divide by 1000.įor example, to convert 100 kg to tonnes, multiply 100 by 0.001, that makes 0.1 tonne is 100 kg.

How to convert kilograms to metric tons?ġ Kilogram is equal to 0.001 Metric ton (tonne). To convert kilograms to tons (kg to T) or to convert tons to kilograms (T to kg), you may use the converter above.īelow, you will find information of how to convert kg to metric tons, how to convert kg to United States short tons and how to convert kg to UK long tons, including the formulas and example conversions.