Length Converter
Length conversion is fundamental to engineering, science, carpentry, athletics, and everyday travel. This tool allows instant, bi-directional conversion between international SI metric standards and traditional imperial or US customary units.
Common Length Converter Conversions
| Unit Standard | Target Equivalent | Formula | Practical Example |
|---|---|---|---|
| 1 Inch | 2.54 Centimeters | in × 2.54 = cm | 10 in = 25.4 cm |
| 1 Foot | 12 Inches (0.3048 m) | ft × 12 = in | 6 ft = 72 in = 1.8288 m |
| 1 Mile | 1.60934 Kilometers | mi × 1.60934 = km | 5 mi = 8.0467 km |
| 1 Kilometer | 0.62137 Miles | km × 0.62137 = mi | 10 km = 6.2137 mi |
How Length Converter Math Works
All length conversions translate through the SI base unit (meter). For example, to convert feet to meters, multiply by 0.3048. To convert meters to miles, divide by 1,609.344.
Frequently Asked Questions
How many feet are in a meter?
One meter equals approximately 3.28084 feet. To convert meters to feet, multiply your meter value by 3.28084.
How many kilometers are in a mile?
One standard statute mile equals exactly 1.609344 kilometers. To convert miles to kilometers, multiply by 1.609344.
What is the SI standard definition of a meter?
Since 1983, the meter has been officially defined as the length of the path travelled by light in vacuum during a time interval of 1/299,792,458 of a second.