Instant Conversions

Length Converter

Quickly convert between meters, kilometers, miles, feet, inches, and other length units. Perfect for engineering, construction, travel, and studies.

Usage Scenarios

  • • Convert project measurements between metric and imperial systems.
  • • Plan trips and understand distances in different countries.
  • • Perform calculations in physics, engineering, and architecture.
  • • Compare heights, lengths, and distances practically.

Related Tools

For other conversions, see also:

Informe o comprimento na unidade selecionada. Use ponto ou vírgula para casas decimais.

Dicas de conversão

  • 1 metro equivale a 3,28084 pés e 39,3701 polegadas.
  • 1 milha terrestre possui 1.609,344 metros; a milha náutica tem 1.852 metros.
  • Use centímetros e milímetros para medições de precisão em projetos de design e marcenaria.

Metric vs. Imperial System

The International System of Units (SI), or metric system, is the global standard for science and commerce, using the meter as its base. The imperial system is used in the United States, United Kingdom, and other countries, with units such as the mile, yard, foot, and inch. This converter bridges the two systems, essential for global projects and communication.

Most Used Equivalency Table

Imperial UnitMetric Equivalent
1 Inch (in)2,54 centimeters
1 Foot (ft)30,48 centimeters
1 Yard (yd)0,9144 meters
1 Mile (mi)1,60934 kilometers

Frequently Asked Questions

Get your questions about length conversions answered.

What is the difference between a land mile and a nautical mile?+

The land mile (used on roads) measures 1,609.344 meters. The nautical mile, standard in aviation and maritime navigation, is larger and measures 1,852 meters, as it is based on one minute of arc of the Earth's latitude.

How to quickly convert meters to feet?+

Simply multiply the value in meters by 3.28084. For example, 10 meters × 3.28084 = 32.8084 feet. Our calculator does this instantly.

Why don't the USA use the metric system?+

The United States adopted the imperial system before the worldwide standardization of the metric system. Although they have technically adopted the SI, the imperial system remains in everyday use due to cultural custom and the cost of transition.

Which length unit is the most precise?+

Precision depends on the context. The meter is redefined in terms of the speed of light in a vacuum, making it extremely precise. For scientific measurements, nanometers, angstroms, or even femtometers can be used.