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Length - Online Unit Converter

Convert between length units like meters, feet, inches, nautical miles and more.

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Length Units Online Calculator

The calculator below can used to convert between common length units:

Length Units Conversion Table

The table below can be used to convert between some common length units:

For full table - rotate the screen!

Length Units Converter
Convert from Multiply with
Convert to
inches feet yards miles nautical miles cables
metre 39.37 3.28 1.09 6.21 10-4 5.4 10-3 5.4 10-3
decimeter 3.937 0.328 0.109 6.21 10-5 5.4 10-4 5.4 10-4
centimeter 0.394 0.0328 0.0109 6.21 10-6 5.4 10-5 5.4 10-5
millimeter 0.039 0.00328 0.00109 6.21 10-7 5.4 10-6 5.4 10-6
micrometer 3.9 10-5 3.28 10-6 1.09 10-6 6.2 10-10 5.4 10-10 5.4 10-9
nanometer 3.9 10-8 3.28 10-9 1.09 10-9 6.21 10-13 5.4 10-13 5.4 10-12
ångströms 3.9 10-9 3.28 10-10 1.09 10-10 6.21 10-14 5.4 10-14 5.4 10-13
hectometer 3937 328 109.4 0.0621 0.054 0.54
kilometer 39370 3280 1094 0.621 0.54 0.54
inch 1 0.0833 0.0278 1.58 10-5 1.37 10-5 1.37 10-4
foot 12 1 0.33 1.89 10-4 1.65 10-4 1.65 10-3
yard 36 3 1 5.7 10-4 4.9 10-4 4.9 10-3
mile 63398 5280 1761 1 0.87 8.7
nautical mile 72908 6076 2025 1.15 1 10
cable 7291 607.6 203 0.11 0.1 1

 

For full table - rotate the screen!

Length Units Converter
Convert from Multiply with
Convert to
metre decimeters centimeters millimeters micrometers nanometers ångströms hectometers kilometers
metre 1 10 100 1000 106 109 1010 0.01 0.001
decimeter 0.1 1 10 100 105 108 109 0.001 0.0001
centimeter 0.01 0.1 1 10 104 107 108 0.0001 0.00001
millimeter 0.001 0.01 0.1 1 103 106 107 0.00001 0.000001
micrometer 10-6 10-5 10-4 10-3 1 103 104 10-8 10-9
nanometer 10-9 10-8 10-7 10-6 10-3 1 10 10-11 10-12
ångströms 10-10 10-9 10-8 10-7 10-4 0.1 1 10-12 10-13
hectometer 100 1000 104 105 108 1011 1012 1 0.1
kilometer 1000 104 105 106 109 1012 1013 10 1
inch 0.0254 0.254 2.54 25.4 2.54 104 2.54 107 2.54 108 2.54 10-4 2.54 10-5
foot 0.3048 3.048 30.48 304.8 3.05 105 3.05 108 3.05 109 3.05 10-3 3.05 10-4
yard 0.914 9.14 91.4 914 9.14 105 9.14 108 9.14 109 9.14 10-3 9.14 10-4
mile 1610 1.61 104 1.61 105 1.61 106 1.61 107 1.61 1012 1.61 1013 1.61 102 1.61
nautical mile 1852 1.85 104 1.85 105 1.85 106 1.85 107 1.85 1012 1.85 1013 1.85 102 1.85
cable 185 1.85 103 1.85 104 1.85 105 1.85 106 1.85 1011 1.85 1012 1.85 0.185

Note that since the metrification of the inch the inch has been specified as exactly 25.4 mm.

Length Units Converter

Download and print Length Units Converter

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Other Length Units

  • 1 metre = 118.106 barleycoms
  • 1 metre = 0.04971 chains (surveyors)
  • 1 metre = 1.14286 ells (UK)
  • 1 metre = 236.22 ems (pica)
  • 1 metre = 0.5468 fathoms
  • 1 metre = 0.00497 furlongs
  • 1 metre = 9.8425 hands
  • 1 metre = 39370 mil
  • 1 metre = 1012 picometers
  • 1 Scandinavian (Norway & Sweden) mil = 10000 metre
  • 1 astronomical unit (AU) = 149598550000 metre
  • 1 light year = 9460528405000000 metre
  • 1 parsec = 30856776000000000 metre
  • 1 furlong = 40 rods

A nautical mile is now 1852 m (6080 feet) - it was originally defined as one minute of arc of a great circle - or 1/60 of 1/360 of the earth's circumference. The ordinary mile is more precisely known as the statute mile - as defined by statute or law.

Example - Inches to Feet

4" (inches) can be converted to feet by multiplying inches with factor 0.0833 from the table above 

4 (inches) 0.0833 (feet/inch) = 0.333 feet

Inches to Feet
InchesFeet
fractiondecimal
1 1/12 0.08
2 2/12 0.17
3 3/12 0.25
4 4/12 0.33
5 5/12 0.42
6 6/12 0.5
7 7/12 0.58
8 8/12 0.67
9 9/12 0.75
10 10/12 0.83
11 11/12 0.92
12 12/12 1

Note that the standard reference temperature for industrial length measurement is 20 oC (68 oF).

Miles to Km Converter

Miles to km converter

Download and print miles to km Converter!

Feet to m Converter

Feet to m converter

Download and print feet to m Converter!

Inches to mm Converter

Inches to mm converter

Download and print inches to mm Converter!

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