Length Converter
Length converter: convert inches, feet, yards and miles to and from millimeters, meters and kilometers.
Editorial review: Farrow (pseudonym; identity and professional credentials are not disclosed). This page is for educational purposes, not professional advice.
Your inputs
Results update as you type. Nothing you enter leaves your device.
Results
Example with the starting values
These results use the calculator's initial inputs. Change the values above to calculate your own estimate.
Inputs
- Value
- 1
- From
- mi
- To
- km
Results
- Result
- 1.609344 km
How does the Length Converter work?
A length converter changes a distance from one unit to another, such as miles to kilometers. Values go through meters: result = value × (meters per from-unit) / (meters per to-unit).
All factors are exact definitions: 1 in = 2.54 cm, 1 ft = 0.3048 m, 1 yd = 0.9144 m and 1 mi = 1,609.344 m. For example, 5 miles is 5 × 1,609.344 / 1,000 = 8.04672 km.
Frequently asked questions
How do I convert inches to centimeters?
Multiply inches by 2.54. For example, 12 inches is 12 × 2.54 = 30.48 cm.
How do I convert feet to meters?
Multiply feet by 0.3048. For example, a 6 ft person is 6 × 0.3048 = about 1.83 m tall.
How many feet are in a mile?
There are 5,280 feet in a mile, which equals 1,760 yards or about 1.609 kilometers.
How many kilometers is a mile?
One mile is exactly 1.609344 kilometers.