The difficulty comes mainly from the fact, that larger units seem to be an arbitrary multiple of the next smaller unit.
unit system seems quite complicated and impractical. The tables below shows the names for multiples and fractions of the base unit:įrom an European point of view, the U.S. Again, there is a scientific notation for small numbers such as 1E-6 for 0.000'001. One thousandth of the base unit has the prefix milli, for example 1 millimeter (mm) equals to 0.001 meter.Īfter that, the naming schema applies in steps of the factor 0.001, such as mikro for 0.000'001 base units, nano for 0.000'000'001 base units and so on. A tenth of the base unit has the prefix deci, for example 1 deciliter (dl) equals to 0.1 liter.Ī hundredth of the base unit has the prefix centi, for example 1 centimeter (cm) equals to 0.01 meter. 圎n is a short form of x times 10 power n (x*10^n).Ī very similar schema applies for fractions of the base units. In order to keep the numbers short and easier to read, a so called scientific notation is often used, like 1E6 for 1'000'000 or 3E9 for 3'000'000'000. One thousand base units have the prefix kilo, for example 1 kilogramm (kg) equals to 1'000 gramms.Īfter that, the naming schema applies in steps of the factor 1000, such as mega for 1'000'000 base units, giga for 1'000'000'000 base units and so on. Hundred base units have the prefix hekto, for example 1 hektoliter (hl) equals to 100 liters. Ten base units have the prefix deka (which is however rarely used), for example 1 dekameter (Dm) equals to 10 meters. There is a base unit for each type of measurement, such as meter (abbreviation m) for length, gramm (abbreviation g or gr) for weight or liter (abbreviation l or lt) for volume. The metric unit system is easy to handle because everything is a multiple or a fraction of ten.
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