📏 Length Converter
Convert between meters, feet, inches, kilometers, miles, yards, nautical miles, and more.
Enter a value above to see the result
Common Length Conversions
| Input | Unit | Result | Unit |
|---|---|---|---|
| 1 | Mile | 1.609344 | Kilometer |
| 1 | Foot | 30.48 | Centimeter |
| 1 | Inch | 2.54 | Centimeter |
| 100 | Meter | 328.08399 | Foot |
| 6 | Foot | 1.8288 | Meter |
| 26.2 | Mile | 42.164813 | Kilometer |
Popular Conversions
About Length Conversions
Length is one of the seven SI base quantities and appears in virtually every area of human activity — from measuring a room for new furniture to calculating the distance between cities. Two major systems dominate everyday use: the metric system, adopted by most of the world, and the imperial system, used primarily in the United States.
In the metric system the meter is the base unit. Kilometers (1,000 meters) cover long distances like road trips; centimeters and millimeters handle smaller tasks like clothing sizes or engineering tolerances. In the imperial system, feet (12 inches) and miles (5,280 feet) are the everyday workhorses, while yards appear in American football and fabric measurement.
Nautical miles are a specialized unit used in aviation and maritime navigation. One nautical mile equals one arc-minute of latitude along Earth's surface — roughly 1,852 meters or about 1.15 land miles. This relationship to Earth's geometry is what makes them so practical for charting courses on maps and flight plans.
Frequently Asked Questions
How many feet are in a mile?
There are exactly 5,280 feet in one mile. This figure comes from the mile being defined as 8 furlongs, and each furlong being 660 feet — a system rooted in medieval English land measurement.
How many centimeters are in an inch?
There are exactly 2.54 centimeters in one inch. This is an internationally agreed-upon exact definition established in 1959, which means inch-to-metric conversions never involve rounding at the definition level.
What is the difference between a nautical mile and a land mile?
A nautical mile is 1,852 meters (about 1.151 land miles). It is defined as one arc-minute of latitude, making it geographically meaningful for navigation. A standard (statute) mile is exactly 1,609.344 meters, defined purely by land measurement history.
How many meters are in a kilometer?
There are exactly 1,000 meters in a kilometer. The prefix 'kilo-' always means 1,000 in the metric system, which applies to kilograms, kilojoules, and any other SI unit with the same prefix.
What is 6 feet in meters?
Six feet equals exactly 1.8288 meters. To convert any measurement in feet to meters, multiply by 0.3048 — the exact definition of one foot in SI units.
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How to Convert Miles to Kilometers
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What Is a Kilometer? Definition, Uses, and Conversion Guide
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What Is a Nautical Mile? Definition, History, and Conversions
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Reference Handbooks
Sources
Our Methodology
How we source and verify conversion factors.
Reference Library
Tables, charts, and authoritative reference data.
Reference Charts
Inches to Centimeters Conversion Chart
Complete reference chart converting inches (in) to centimeters (cm). Covers ¼ inch to 72 inches with the exact formula.
Centimeters to Inches Conversion Chart
Quick-reference chart converting centimeters (cm) to inches (in). Covers 1–300 cm at common values with the exact formula.
Feet to Meters Conversion Chart
Reference chart converting feet (ft) to meters (m). Covers 1–1,000 feet at common intervals for everyday and construction use.
Miles to Kilometers Conversion Chart
Quick reference chart converting miles (mi) to kilometers (km). Covers 1–1,000 miles at common intervals for road distances and speed limits.
Meters to Feet Conversion Chart
Quick-reference chart converting meters (m) to feet (ft). Covers 0.1 m to 1,000 m — for height, construction, athletics, and everyday measurement.
Kilometers to Miles Conversion Chart
Quick-reference chart converting kilometers (km) to miles (mi). Covers 0.5 km to 1,000 km — for driving distances, running events, and speed limits.
Feet to Inches Conversion Chart
Quick-reference chart converting feet (ft) to inches (in). Covers 1–20 feet plus common fractional values, with the exact conversion formula.
Yards to Meters Conversion Chart
Reference chart converting yards (yd) to meters (m). Covers 1–1,000 yards for sports, fabric, and construction use.
All Converters
All conversion results are provided for general informational purposes only. Our formulas use internationally recognized conversion factors; however, rounding may affect precision. Do not rely on these results for professional, medical, legal, or engineering decisions without independent verification. Read our full disclaimer.