The units were interrelated. Units of one measure, such as length, increased by powers of ten (millimeters, centimeters, decimeters, meters). A liter was the volume of a cube 10 centimeters on a side.

Kilometres would be a far more appropriate unit of length. Work out what 3 m is in centimetres. To convert a larger unit to a smaller unit (eg m to cm) first check the number of small units needed ...

The sunflower is 214 cm tall. Calculate the height of the sunflower in metres and millimetres. There are 100 centimetres in a metre. Metres are larger than centimetres so the number of centimetres ...

An angstrom (Å) is a unit of length equal to 10-10 meters or 0.1 nanometers. It is named after the Swedish physicist Anders Jonas Ångström, who first used it to measure the wavelengths of light. The ...

A nanometer (nm) is a unit of length in the metric system, defined as one billionth (10-9) of a meter (m). The meter is the base unit of length in the International System of Units (SI), making the ...

Like other metric units, the new prefixes represent powers of 10 — just as 1,000 grams of mass, or 10 x 10 x 10, or 10 3, is a kilogram, and 1/1000 of a meter in length, or 10-3, is a millimeter.