Free Online Length Converter
Convert between metric and imperial length units (Meters, Feet, Inches, Miles, Kilometers, Centimeters, Millimeters, Yards, Nautical Miles) with real-time bidirectional calculations.
How to Use Length Converter
- Enter Value: Input any numeric length or distance into the From field.
- Choose Units: Select the starting unit and target unit from the Metric or Imperial dropdowns.
- Review Instant Conversion: Inspect the converted result, mathematical formula multiplier, and all-unit equivalent breakdown.
- Copy or Swap: Use the Swap button to reverse units or click 'Copy Result' to copy the answer.
Frequently Asked Questions
How many inches are in a foot and meter?
There are exactly 12 inches in a foot, and approximately 39.3701 inches (or 3.28084 feet) in one meter.
How do I convert kilometers to miles?
Multiply kilometers by 0.621371 (or divide by 1.609344) to get miles.
What is a Nautical Mile?
A nautical mile is internationally standardized as exactly 1,852 meters (approx. 1.15078 statute miles), commonly used in maritime and aviation navigation.
Are conversions calculated client-side?
Yes. Calculations execute instantaneously in your browser with zero latency and complete privacy.
Can I enter decimal and scientific notation numbers?
Yes, both positive decimals and scientific exponents are fully supported.
What is the smallest unit supported?
Nanometers (nm, 10^-9 m) and micrometers (µm, 10^-6 m) are supported for precision micro-measurements.