SI prefix

An SI prefix is a prefix that can be applied to an SI unit to form a decimal multiple or submultiple.

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Many SI prefixes predate the introduction of the SI in 1960. They can be applied correctly to many non-SI units.

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As part of the SI system they are officially determined by the Bureau International des Poids et Mesures.

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As an example, the prefix kilo multiplies by one thousand, so a kilometre is 1,000 metres, and a kilowatt is 1,000 watts. The prefix milli subdivides by a thousand, so a millimetre is one-thousandth of a metre (1000 millimetres in a metre), and a millilitre is one-thousandth of a litre. The ability to apply the same prefixes to any SI unit is one of the key strengths of the SI, since it considerably simplifies the system's learning and use.

Prefix: Prefix has meanings in linguistics, mathematics and computer science, and telecommunications....

SI: The International System of Units (abbreviated SI from the French phrase, Syst?me International d'Unit?s) is the most widely used system of units. It is the most common system for everyday commerce in the world, and is almost universally used in the realm of science....

Metre: :This article is about the unit of length. For other uses of metre or meter, see meter (disambiguation)....

SI prefix related Images and Photos (experimental)

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