# Difference Between mm and cm

Difference Between mm and cm – The metric system is an international system of measurement that is used as the fundamental system of measurement in the majority of countries.

It was intended for general use, but it was discovered to be very valuable in the disciplines of engineering, physics, astronomy, and other sciences.

It has interconnected basic units that are prefixed to produce either a bigger or a smaller unit.

Prefixes multiply or divide a unit of measurement by a factor of 10, 100, or 1,000 to give a smaller or bigger unit of measurement.

A meter is a basic unit for measuring length that is used by the International System of Units (SI).

Smaller units, such as centimetres (cm) and millimetres (mm), are derived from this basic unit by adding the prefixes “centi” (100) and “milli” (1,000).

Both the centimetre and the millimetre are part of the standard system of measurement used by scientists and the general public today.

These units of length are also set by the International System of Units (SI).

The millimetre (mm) is a unit of length equal to one-thousandth of a meter, hence one meter is comprised of 1,000 millimetres.

It is also equivalent to 1,000 micrometres and 1,000,000 nanometers, and an inch is constituted of 25.4 mm.

To give you an idea of how thick or thin a millimetre is, compare it to the thickness of a paper clip or a credit card.

It is the unit of measurement used to calculate the amount of rainfall; 2 mm of rain is not as bothersome as 15 mm of rain, which may already drench a person.

The centimetre (cm) is also a unit of length that is ten times bigger than a millimetre and equivalent to one-hundredth of a meter; hence, there are 100 centimetres in a meter.

One inch equals 2.54 cm. It is about the width of an adult fingernail, a button, or the keys of a piano.

It is used as a practical unit of measurement in daily measurements and in sewing to acquire the right measurement of patterns. It is also the unit that snowfall is measured.

## Summary of the Difference Between mm and cm

1. A millimetre is a unit of length that is equal to one-thousandth of a meter. A centimetre is a unit of length that is equal to one-hundredth of a meter.
2. Rainfall is measured in millimetres, whereas snowfall is measured in centimetres.
3. Although both use the meter as their basic unit, the centimetre is 10 times bigger than the millimetre.
4. There are 25.4 millimetres in one inch and 2.54 centimetres in one inch.
5. In everyday life, the centimetre is used to measure things instead of the millimetre.
6. A millimetre is about the thickness of a credit card or a paper clip, while a centimetre is roughly the thickness of a button or an adult’s fingernail.