Length Converter

To use this length conversion tool, enter your desire unit you want the outcome to be. Then enter the value. The length converter then instantaneously gives your results for each unit. If you wish to convert length to a unit other than the ones the Myfavetools has preset as the default, click on the unit name in the dropdown field.

Length Conversion Factors

The following units and associated conversion factors in metres (SI units for length) are used by this length converter:

SI Metric Length Units

• yoctometre (ym) – 1 x 10-24 m
• zeptometre (zm) – 1 x 10-21 m
• attometre (am) – 1 x 10-18 m
• femtometre (fm) – 1 x 10-15 m
• picometre (pm) – 1 x 10-12 m
• nanometre (nm) – 1 x 10-9 m
• micrometre (µm) – 0.000001 m
• millimetre (mm) – 0.001 m
• centimetre (cm) – 0.01 m
• decimetre (dm) – 0.1 m
• metre (m) – 1 m
• decametre (dam) – 10 m
• hectometre (hm) – 100 m
• kilometre (km) – 1,000 m
• megametre (Mm) – 1,000,000 m
• gigametre (Gm) – 1 x 10+9 m
• terametre (Tm) – 1 x 10+12 m
• petametre (Pm) – 1 x 10+15 m
• exametre (Em) – 1 x 10+18 m
• zettametre (Zm) – 1 x 10+21 m
• yottametre (Ym) – 1 x 10+24 m

Imperial & US Length Units

• thousandth of an inch (thou) – 0.0000254 m
• inch (in) – 0.0254 m
• foot (ft) – 0.3048 m
• yard (yd) – 0.9144 m
• mile (mi) – 1,609.344 m
• nautical mile (nmi) – 1,852 m

Astronomical Length Units

• astronomical unit (au) – 149,597,870,700 m
• light-year (ly) – 9,460,730,472,580,800 m
• parsec (pc) – 30,856,775,814,913,672.789… m
• kiloparsec (kpc) – 3.0856775814913672789… x 10+19 m
• megaparsec (Mpc) – 3.0856775814913672789… x 10+22 m
• gigaparsec (Gpc) – 3.0856775814913672789… x 10+25 m

Below are the most popular length conversions - frequently asked:

Meters to feet / feet to meters: How many feet there are in a meter?

• 1 meter ≈ 3.281 feet, which is 3 feet 3⅜ inches
• 1 foot = 0.3048 meter

cm to inches / inches to cm: How many centimeters are in an inch?

• 1 centimeter ≈ 0.3937 inches
• 1 inch = 2.54 centimeters
•  

Feet to inches / inches to feet: Converting inches and feet and vice versa:

• 1 foot = 12 inches
• 1 inch ≈ 0.08333 feet 1/12 of a foot

Feet to yards / yards to feet: How many feet in a yard?

• 1 yard = 3 feet
• 1 foot ≈ 0.3333 yards, 1/3 of a yard

Feet to miles / miles to feet: How many feet there are in a mile?

• 1 foot ≈ 0.00018939 mile
• 1 yard = 5280 feet

Meter

Several metric systems, such as the International System of Units, use the meter (British English: metre) as their fundamental unit of length (SI).

The definition of a meter evolved as measurement techniques used in science advanced. The length of the path that light takes in a vacuum in 1/299,792,458 of a second is how it is now defined.

Feet

The foot is a unit of length in the Imperial/US metric system (abbreviated as ft or '). As the name suggests, it is also a measurement based on the human body. Since the 1950s, when the unit was established, it has exactly equaled 0.3048 meters:

1 ft = 0.3048 m = 304.8 mm

Many diverse cultures have used feet since the beginning of time, but their actual lengths varied. The foot was utilized, for instance, in:

Ancient Rome: 1 foot = 11.6 inches (295.7 mm). That was a standard foot, but in some provinces it could be as much as 13.2 inches (334 mm)
Greece: 1 foot = 10.6-13.8 inches (270 - 350 mm)
Indus cities during the Bronze Age: 1 foot = 13.2 inches (333.5 mm)
Egypt: the foot equivalent = 12 inches (304.8 mm)

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