Length Converter
Convert linear measurements and distances across international metric and imperial units. Supports meters, feet, inches, kilometers, centimeters, yards, millimeters, and nautical miles.
Distance measurement value to convert
Starting unit of distance
Target converted unit
Resulting distance in requested target unit
How to Use This Calculator
- Enter the length quantity to convert.
- Select the starting unit of distance.
- Select the destination target unit.
- Review the converted dimension and SI base meters value.
Formula & Calculation Methodology
All distances convert through the SI base unit of meters (m), using exact international definitions (1 inch = 0.0254 m, 1 foot = 0.3048 m, 1 yard = 0.9144 m).
Worked Example
Converting 100 meters to feet
Converting 5 miles to kilometers
Frequently Asked Questions
How many feet are in a meter?↓
One meter equals approximately 3.28084 feet (or 39.3701 inches).
What is a nautical mile?↓
A nautical mile is defined as exactly 1,852 meters (approx. 1.15078 standard statute miles), historically corresponding to one minute of latitude on Earth.
Are these conversion factors exact?↓
Yes. Conversions adhere strictly to the International Yard and Pound Agreement of 1959, which defined 1 international yard as exactly 0.9144 meters.
What is a limitation of linear length conversion?↓
Linear length conversion applies to one dimension only; area conversion requires squaring the factor (k²), and volume requires cubing (k³).
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Source Citation & Disclaimer
Informational tool only; not licensed tax, legal, or financial advice.