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Length & Distance Converter

Convert between meters, feet, inches, miles, kilometers and other length units

Length & Distance Converter

Convert between different length units with precision

Popular Length & Distance Converter Conversions

6 ft to meters100 mi to km12 in to cm100 yd to m50 km to mi30 cm to in25 mm to in1 nmi to km

Quick Presets

6 ft to meters100 mi to km12 in to cm

Length & Distance Converter Formulas

Length conversions using international standards and exact definitions

Base Unit Method

V_{target} = V_{input} \times \frac{F_{input}}{F_{target}}

$V_{target}$ = Value in target unit

$V_{input}$ = Value in input unit

$F_{input}$ = Conversion factor to base

$F_{target}$ = Conversion factor from base

Category-Specific Formula

1 \text{ meter} = 3.28084 \text{ feet} = 39.3701 \text{ inches}

Understanding Length & Distance Converter

Metric vs Imperial

The metric system uses base-10 scaling (millimeter → centimeter → meter → kilometer), while imperial units have historical relationships (12 inches = 1 foot, 3 feet = 1 yard, 5280 feet = 1 mile).

Precision in Measurements

The meter is defined as the distance light travels in vacuum in 1/299,792,458 of a second, making it extremely precise. Imperial units are now officially defined in terms of metric units.

Astronomical Distances

For space measurements, we use astronomical units (AU), light-years (ly), and parsecs. One light-year equals about 9.46 trillion kilometers or 5.88 trillion miles.

Common Applications

Length conversions are essential for construction, engineering, sports, travel, and international trade. Different countries and industries may use different systems.

Related Converters

Area Converter

Convert square units (length²)

Volume Converter

Convert cubic units (length³)

Speed Converter

Convert velocity (length/time)

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