Length Conversion Formulas
Master length conversions with precise formulas and conversion factors for metric, imperial, and other measurement systems.
1Basic Length Conversion Formula
Example: Convert 5 meters to feet
Example: Convert 12 inches to cm
2Metric System Conversions
Base Unit: Meter (m)
Kilometer (km)
Hectometer (hm)
Dekameter (dam)
Smaller Units
Decimeter (dm)
Centimeter (cm)
Millimeter (mm)
3Imperial System Conversions
Common Imperial Units
Mile
Yard
Foot
Metric-Imperial Conversions
Inch to Centimeter
Foot to Meter
Mile to Kilometer
4Quick Reference Conversion Table
| From | To | Multiply by | Example |
|---|---|---|---|
| Meters | Feet | 3.28084 | 5 m = 16.4042 ft |
| Feet | Meters | 0.3048 | 10 ft = 3.048 m |
| Inches | Centimeters | 2.54 | 12 in = 30.48 cm |
| Centimeters | Inches | 0.393701 | 25 cm = 9.84252 in |
| Kilometers | Miles | 0.621371 | 100 km = 62.1371 miles |
| Miles | Kilometers | 1.609344 | 50 miles = 80.4672 km |
5Scientific and Specialized Units
Astronomical Units
Light Year
Astronomical Unit
Parsec
Microscopic Units
Micrometer (μm)
Nanometer (nm)
Angstrom (Å)