About this Length Converter
Length Converter switches common metric and imperial/US customary length units without requiring you to remember conversion factors. Choose the starting and destination units and enter any numeric value.
Formula or method
Each unit is converted through an exact or standard meter conversion factor.
Example
1 meter is approximately 3.28084 feet.
Common uses
- Convert room or object measurements.
- Switch road-distance values between kilometers and miles.
- Check feet, inches, yards and metric equivalents.
How to use this tool
- Enter the values or text requested by the calculator.
- Choose units or options when the tool provides them.
- Select the calculation button and review the result.
- Use the formula, example and notes on this page to check whether the result fits your situation.
Important note
Displayed results may be rounded even when the internal conversion uses more precision.
Frequently asked questions
Why do some results have many decimals?
Some units do not convert to a short decimal exactly, so the tool displays a practical rounded result.
Can I convert negative values?
Yes mathematically, although whether a negative length makes sense depends on your context.