Length Converter
Convert between meters, feet, inches, kilometers, miles, centimeters, and more length units. Free, instant, and accurate conversions.
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How to Convert Length Units
Enter Value
Type the number you want to convert in the input field.
Select Units
Choose your source unit and the target unit from the dropdowns.
View Result
See the converted value instantly. Results update as you type.
Why Use Our Length Converter?
All Major Units
Convert between metric and imperial length units in one tool.
Instant Results
Conversions happen in real time as you type. No buttons needed.
Completely Free
No limits, no signup. Convert as many values as you need.
Private & Secure
All calculations happen in your browser. No data is sent anywhere.
Frequently Asked Questions
How accurate are the conversions?
Conversions use standard international conversion factors and are accurate to 10 decimal places.
Can I convert between metric and imperial?
Yes! The converter handles both metric (mm, cm, m, km) and imperial (in, ft, yd, mi) units seamlessly.
How do I convert feet and inches?
Enter the total number of inches or feet. For combined measurements like 5'10", convert feet to inches first (5*12+10=70 inches).
Is my data sent anywhere?
No. All calculations happen locally in your browser. No data is ever sent to any server.
What is the largest conversion supported?
The converter handles any number JavaScript can process, which is up to about 1.8 x 10^308.