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Length Converter | Convert Meters, Kilometers, Miles, Feet, Inches | Free

Free length and distance converter. Convert between meters, kilometers, miles, feet, inches, centimeters, yards, and more. Instant conversions with formulas. Perfect for construction, travel, and engineering.

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12+ Units
All Lengths
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Instant
Real-time
Metric & Imperial
Instant Conversion
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Length Converter

Convert between all length units

From

To

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Length Conversion Facts

Understanding length measurements

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12+
Unit Types

All length units

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Instant
Real-time

As you type

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Precise
Accurate

10 decimal places

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Universal
Metric & Imperial

Both systems

💡 Pro Tip: All conversions use internationally recognized conversion factors for maximum accuracy.

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How to Use This Converter

Step-by-step guide to get started

How to Convert Length Units

  1. Select Source Unit: Choose the unit you're converting FROM (e.g., meters, feet, miles)
  2. Enter Value: Type the distance or length you want to convert
  3. Select Target Unit: Choose the unit you're converting TO
  4. View Results: Get instant conversion with the formula shown
  5. Multiple Conversions: Results show equivalent values in other common units too

Supported Units

  • Metric System: Millimeters (mm), Centimeters (cm), Meters (m), Kilometers (km)
  • Imperial System: Inches (in), Feet (ft), Yards (yd), Miles (mi)
  • Nautical: Nautical miles (NM)
  • Astronomical: Light years (ly), Astronomical units (AU)

Quick Reference Examples

  • 1 meter = 3.28084 feet = 39.3701 inches
  • 1 kilometer = 0.621371 miles = 1,000 meters
  • 1 mile = 1.60934 kilometers = 5,280 feet
  • 1 foot = 0.3048 meters = 12 inches
  • 1 inch = 2.54 centimeters = 25.4 millimeters

Quick Tip: Follow these steps in order for the best experience

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How It Works

Understanding length conversion formulas

Length Conversion Formulas

Our converter uses standard conversion factors approved by international standards organizations (ISO, NIST). All conversions are precise to 6 decimal places for maximum accuracy.

Common Conversion Formulas

Meters to Feet

Formula: feet = meters × 3.28084

Example: 10 meters = 10 × 3.28084 = 32.8084 feet

Kilometers to Miles

Formula: miles = kilometers × 0.621371

Example: 5 kilometers = 5 × 0.621371 = 3.106855 miles

Inches to Centimeters

Formula: centimeters = inches × 2.54

Example: 12 inches = 12 × 2.54 = 30.48 centimeters

Miles to Kilometers

Formula: kilometers = miles × 1.60934

Example: 100 miles = 100 × 1.60934 = 160.934 kilometers

Understanding Metric vs Imperial

Metric System: Based on powers of 10, making calculations easier. Used by most countries worldwide. The meter is the base unit, defined as the distance light travels in 1/299,792,458 of a second.

Imperial System: Used primarily in the United States. Based on traditional British units. The foot is defined as exactly 0.3048 meters since 1959.

Practical Applications

  • Construction & Architecture: Converting blueprints between imperial and metric measurements
  • Travel Planning: Converting road distances from kilometers to miles or vice versa
  • Sports & Fitness: Track running distances, swimming pool lengths, cycling routes
  • Real Estate: Property lot sizes, room dimensions, fence lengths
  • Engineering: Precise technical specifications and tolerances
  • Education: Science homework, physics problems, math conversions

Science-Backed

Based on proven research

Easy to Follow

Simple steps for everyone

Instant Results

Get answers immediately

💡 Pro Tip: All conversions are based on internationally recognized standards (SI units).
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Frequently Asked Questions

Find answers to common questions about length conversion

There are 3.28084 feet in 1 meter. This is a precise conversion factor. So 5 meters = 16.4042 feet, 10 meters = 32.8084 feet. The conversion factor comes from the international definition where 1 foot = exactly 0.3048 meters.

To convert kilometers to miles, multiply by 0.621371. Formula: miles = kilometers × 0.621371. Example: 10 km = 10 × 0.621371 = 6.21371 miles. For a quick approximation, multiply by 0.6 or divide by 1.6.

1 meter = 1.09361 yards. A meter is slightly longer than a yard. 1 yard = 0.9144 meters exactly. Meters are metric (base 10), yards are imperial. In practical terms, they're very similar - a meter is about 3 inches longer than a yard.

There are exactly 2.54 centimeters in 1 inch. This is the official international conversion: 1 inch = 2.54 cm. Therefore: 12 inches (1 foot) = 30.48 cm, 6 inches = 15.24 cm, 24 inches = 60.96 cm.

Yes! 1 nautical mile = 1.15078 statute (regular) miles = 1.852 kilometers. Nautical miles are used in maritime and aviation for navigation. They're based on Earth's circumference: 1 nautical mile = 1 minute of latitude.

Yes! Our converter uses official conversion factors from NIST and ISO standards, accurate to 6+ decimal places. Perfect for professional use in construction, engineering, architecture, and scientific applications. All conversions are mathematically precise.

Convert feet to inches first (multiply feet by 12), add remaining inches, then multiply total inches by 2.54. Example: 5 feet 8 inches = (5×12)+8 = 68 inches × 2.54 = 172.72 cm. Or use our converter: select feet, enter 5.67 (5'8"), and convert to centimeters.

Most common: meters to feet (construction/engineering), kilometers to miles (travel/driving), inches to centimeters (product specifications), feet to meters (international projects), centimeters to inches (online shopping). Our tool handles all these instantly.

Still have questions? Feel free to leave a comment below and we'll help you out!

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