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  2. Metric prefix - Wikipedia

    en.wikipedia.org/wiki/Metric_prefix

    Metric prefixes have also been used with some non-metric units. The SI prefixes are metric prefixes that were standardised for use in the International System of Units (SI) by the International Bureau of Weights and Measures (BIPM) in resolutions dating from 1960 to 2022. [1] [2] Since 2009, they have formed part of the ISO/IEC 80000 standard.

  3. Orders of magnitude (length) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(length)

    The term myriometer (abbr. mom, equivalent to 100 micrometers; frequently confused with the myriameter, 10 kilometers) [98] is deprecated; the decimal metric prefix myrio-[99] is obsolete [100] [101] [102] and was not included among the prefixes when the International System of Units was introduced in 1960. 100 μm – 1/10 of a millimeter

  4. List of metric units - Wikipedia

    en.wikipedia.org/wiki/List_of_metric_units

    Metric units are units based on the metre, gram or second and decimal (power of ten) multiples or sub-multiples of these. According to Schadow and McDonald, [ 1 ] metric units, in general, are those units "defined 'in the spirit' of the metric system, that emerged in late 18th century France and was rapidly adopted by scientists and engineers.

  5. Unit prefix - Wikipedia

    en.wikipedia.org/wiki/Unit_prefix

    The prefixes of the metric system precede a basic unit of measure to indicate a decadic multiple and fraction of a unit. Each prefix has a unique symbol that is prepended to the unit symbol. Some of the prefixes date back to the introduction of the metric system in the 1790s, but new prefixes have been added, and some have been revised.

  6. Metric system - Wikipedia

    en.wikipedia.org/wiki/Metric_system

    These can be made into larger or smaller units with the use of metric prefixes. SI derived units are named combinations – such as the hertz (cycles per second), newton (kg⋅m/s 2), and tesla (1 kg⋅s −2 ⋅A −1) – or a shifted scale, in the case of degrees Celsius. Certain units have been officially accepted for use with the SI.

  7. Orders of magnitude (time) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(time)

    The smallest meaningful increment of time is the Planck timeā€•the time light takes to traverse the Planck distance, many decimal orders of magnitude smaller than a second. [ 1 ] The largest realized amount of time, based on known scientific data, is the age of the universe , about 13.8 billion years—the time since the Big Bang as measured in ...

  8. Template:Metric prefixes (inline table) - Wikipedia

    en.wikipedia.org/wiki/Template:Metric_prefixes...

    Prefix name N/A deca hecto kilo mega giga tera peta exa zetta yotta ronna quetta; Prefix symbol da h k M G T P E Z Y R Q Factor 10 0: 10 1: 10 2: 10 3: 10 6: 10 9: 10 12: 10 15: 10 18: 10 21: 10 24: 10 27: 10 30

  9. Orders of magnitude (data) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(data)

    In casual usage, when 1024 is a close enough approximation of 1000, some of the decimal prefixes have been used in relation to computer memories to mean the binary power, but increasingly from 1998, standards bodies have chosen to limit the resultant confusion by disallowing when software displays a binary quantity with a decimal prefix.