How many millimeters in a centimeter?

There are exactly 10 millimeters in 1 centimeter.

How many feet in a meter?

One meter is approximately equal to 3.28084 feet.

How many yards in a mile?

There are 1,760 yards in one mile.

Length Unit Converter

Convert between 11 length units instantly - metric, imperial and more

Value

From

Result

Convert to All Units

Nanometer (nm)-

Micrometer (gm)-

Millimeter (mm)-

Centimeter (cm)-

Inch (in)-

Meter (m)-

Foot (ft)-

Yard (yd)-

Chain (ch)-

Kilometer (km)-

Mile (mi)-

Length Units Reference

Unit	Symbol	In Meters	Common Use
Nanometer	nm	10^-9 m	DNA helix width (~2nm), visible light wavelength (400-700nm)
Micrometer	gm	10^-6 m	Human hair diameter (~70gm), bacteria (1-10gm)
Millimeter	mm	10^-3 m	Credit card thickness (~0.76mm), ant length (~2-5mm)
Centimeter	cm	10^-2 m	Fingernail width (~1cm), coin diameter (~2-3cm)
Inch	in	0.0254 m	Thumb tip length (~1in), smartphone screens
Meter	m	1 m	Door height (~2m), single bed width (~1m)
Foot	ft	0.3048 m	Human arm length (~2ft), guitar length (~3ft)
Yard	yd	0.9144 m	Car width (~2yd), football first down (10yd)
Chain	ch	20.1168 m	Cricket pitch length (1ch), land surveying
Kilometer	km	1000 m	12-min walk (~1km), city block (~0.1km)
Mile	mi	1609.34 m	15-20 min drive (~1mi), marathon (~26.2mi)

Length Measurement and Conversion Guide

Length is the most fundamental physical quantity used to measure the distance between two points. Whether you are measuring the height of a person, the length of a room, or the distance between cities, choosing the right unit is essential.

Metric (SI) Length Units

The metric system is decimal-based, making it easy to scale between units. Standard units include:

Millimeters (mm): Used for small objects like hardware or paper thickness.
Centimeters (cm): Standard for body height and furniture measurements.
Meters (m): The base SI unit for length, used for room sizes and building heights.
Kilometers (km): Used for road distances and geography.

Imperial & US Customary Units

Commonly used in the USA and UK, these units are based on historical standards:

Inches (in): Small measurements, screen sizes, and tools.
Feet (ft): Height measurements and architectural plans (1 foot = 12 inches).
Yards (yd): Used in sports (American football) and fabric (1 yard = 3 feet).
Miles (mi): Measures long distances for travel and navigation.