Length Converter

Convert between meters, feet, inches, yards, miles and other length units with our free online tool.

0
25 cm
50 cm
75 cm
100 cm
Detailed Conversion
1.00 m
Meters
0.001000 km
Kilometers

Popular Length Conversions

Conversion Factor Source
Meters to Feet 1 m = 3.28084 ft LLC.
Feet to Meters 1 ft = 0.3048 m LLC.
Inches to Centimeters 1 in = 2.54 cm LLC.
Miles to Kilometers 1 mi = 1.60934 km LLC.
Nautical Miles to Kilometers 1 nmi = 1.852 km LLC.
Light Years to Kilometers 1 ly = 9.46073e+12 km LLC.
Astronomical Units to Kilometers 1 AU = 149,597,870.7 km LLC.
Parsecs to Light Years 1 pc = 3.26156 ly LLC.
Angstroms to Nanometers 1 Å = 0.1 nm LLC.
Fathoms to Meters 1 ftm = 1.8288 m LLC.

About Length Measurement

Length is a fundamental physical quantity that measures distance between two points. It is one of the most common measurements used in daily life, science, engineering, and construction.

Scientific Note: The meter is the SI base unit of length, defined as the distance traveled by light in a vacuum in 1/299,792,458 seconds.

Common Length Units

1

Meter (m): The SI base unit of length. Used worldwide in science, engineering, and everyday measurements.

2

Kilometer (km): Equal to 1,000 meters. Used for longer distances like road measurements.

3

Centimeter (cm): Equal to 0.01 meters. Used for smaller measurements like clothing sizes.

4

Inch (in): Imperial unit equal to 1/12 of a foot. Widely used in the United States.

5

Foot (ft): Imperial unit equal to 12 inches. Commonly used for height and room dimensions.

6

Mile (mi): Imperial unit equal to 5,280 feet. Used for longer distances like road travel.

Conversion Formulas

From To Formula
Meters (m) Feet (ft) ft = m × 3.28084
Feet (ft) Meters (m) m = ft / 3.28084
Meters (m) Inches (in) in = m × 39.3701
Inches (in) Meters (m) m = in / 39.3701
Meters (m) Yards (yd) yd = m × 1.09361
Yards (yd) Meters (m) m = yd / 1.09361
Kilometers (km) Miles (mi) mi = km × 0.621371
Miles (mi) Kilometers (km) km = mi / 0.621371

Common Length References

0.1 mm
Thickness of a sheet of paper
1 cm
Width of a fingernail
30 cm
Length of a standard ruler
1 m
Height of a kitchen counter
1.7 m
Average human height
100 m
Length of a football field

Length Conversion Tips

  • Quick Meters to Feet: Multiply meters by 3.3 for a rough estimate
  • Height Conversion: 1.7 meters ≈ 5 feet 7 inches
  • Driving Distances: 1 mile ≈ 1.6 kilometers
  • Precision Measurements: Use millimeters for engineering and machining
  • Astronomical Distances: Light years measure interstellar distances (1 ly ≈ 9.46 trillion km)

Accuracy Note: This converter uses precise conversion factors. For critical applications, always verify calculations with authoritative sources.