Length Units Online Calculator
The calculator below can used to convert between some common length units:
Length Unit Conversion Table
The table below can be used to convert between some common length units:
| Multiply with | ||||||
| Convert from | Convert to | |||||
| inches | feet | yards | miles | nautical miles | cables | |
| meter | 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 | 0.083 | 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 | 5283 | 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 |
| Multiply with | |||||||||
| Convert from | Convert to | ||||||||
| meters | decimeters | centimeters | millimeters | micrometers | nanometers | ångströms | hectometers | kilometers | |
| meter | 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.
Related Mobile Apps from The Engineering ToolBox 
- free apps for offline use on mobile devices.
Other Length Units
- 1 meter = 118.106 barleycoms
- 1 meter = 0.04971 chains (surveyors)
- 1 meter = 1.14286 ells (UK)
- 1 meter = 236.22 ems (pica)
- 1 meter = 0.5468 fathoms
- 1 meter = 0.00497 furlongs
- 1 meter = 9.8425 hands
- 1 meter = 39370 mil
- 1 meter = 1012 picometers
- 1 Scandinavian (Norway & Sweden) mil = 10000 meters
- 1 astronomical unit (AU) = 149598550000 meters
- 1 light year = 9460528405000000 meters
- 1 parsec = 30856776000000000 meters
- 1 furlong = 40 rods
Example - Inches to Feet
4" (inches) can be converted to feet as
4 (inches) / 12 (inches/foot) = 0.33333 feet
| Inches | Feet |
| 1 | 0.08 |
| 2 | 0.17 |
| 3 | 0.25 |
| 4 | 0.33 |
| 5 | 0.42 |
| 6 | 0.5 |
| 7 | 0.58 |
| 8 | 0.67 |
| 9 | 0.75 |
| 10 | 0.83 |
| 11 | 0.92 |
| 12 | 1 |
