Length Converter

Use this free length converter to instantly convert between inches, feet, yards, miles, centimeters, meters, and kilometers. Enter any value and all units update automatically.

How to use this Length Calculator

Enter a value in any field and all other units will update automatically. Type in the inches field to see feet, yards, miles, centimeters, meters, and kilometers. Type in any metric or imperial field and all others convert instantly. Clear any field to reset.

Frequently asked questions

Q: How many centimeters are in an inch?
A: One inch equals exactly 2.54 centimeters. This is a fixed, exact conversion defined by international standards. So 12 inches (one foot) equals 30.48 centimeters, and one meter equals approximately 39.37 inches.

Q: How many feet are in a mile?
A: There are exactly 5,280 feet in one mile, and 1,760 yards. One mile equals approximately 1.609 kilometers. A kilometer is approximately 0.621 miles.

Q: What is the difference between imperial and metric length units?
A: Imperial units (inches, feet, yards, miles) are primarily used in the United States and a few other countries. Metric units (centimeters, meters, kilometers) are used by the rest of the world and in all scientific applications globally. The metric system is base-10, making conversions between units much simpler than imperial conversions.

Q: How do I convert height from feet and inches to centimeters?
A: First convert everything to inches: multiply feet by 12 and add remaining inches. Then multiply total inches by 2.54 to get centimeters. For example, 5 feet 10 inches = 70 inches × 2.54 = 177.8 centimeters.

Q: How many meters are in a yard?
A: One yard equals 0.9144 meters exactly. Conversely, one meter equals approximately 1.0936 yards. For rough estimates, one meter and one yard are close enough that they are often used interchangeably in casual conversation, though the meter is about 3.37 inches longer.