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Universal Unit Converter

Convert length, weight, temperature, time, speed, area, volume, data, energy, pressure, angle, power, frequency and currency units.

Quick conversions

What this tool converts

13 categories in one place — length, weight, temperature, time, speed, area, volume, data, energy, pressure, angle, power and frequency. Each category covers 6–12 of the most-used units. All conversions happen in your browser, with double-precision floating point — the same precision used by Google and physics software.

Notes on precision

  • Results are shown with up to 10 significant digits. Values too large or too small switch to scientific notation automatically.
  • "Month" is fixed at 30 days and "Year" at 365 days. For calendar-accurate month/year calculations, use a dedicated date calculator.
  • "Mach" uses the speed of sound at sea level (343 m/s). It varies with altitude and temperature.
  • Metric data units (KB, MB, GB) are powers of 1000 — the official SI definition. Binary units (KiB, MiB, GiB) are powers of 1024 — what operating systems use internally.
  • US and UK gallons differ. We include both — pick the one matching your use case.

Useful reference points

  • Water freezes at 0 °C = 32 °F = 273.15 K.
  • Water boils at 100 °C = 212 °F = 373.15 K (at sea level).
  • 1 mile = 1.609 km · 1 foot = 0.305 m · 1 inch = 2.54 cm.
  • 1 kg = 2.205 lb · 1 pound = 453.59 g.
  • 1 litre = 0.264 US gallons · 1 US gallon = 3.785 litres.
  • 1 hectare = 2.471 acres · 1 acre = 4,047 m².

Tips

  • Click any row in the "Quick conversions" table to lock that unit as the target.
  • Use the swap button (⇆) to flip the source and target units without re-typing.
  • Scientific notation is supported in the input box — type 1e6 for one million.
ABOUT THIS TOOL

What is Length Converter?

The Length Converter by D&D Technology is a user-friendly tool designed to simplify the conversion of different length units. Whether you need to convert meters to miles, feet to inches, or any other combination of length measurements, our tool provides quick and accurate results. With a clean interface and intuitive design, you can effortlessly switch between units and visualize the conversions instantly.

Ideal for professionals, students, and anyone needing precise measurements, the Length Converter is perfect for a variety of applications. Architects, engineers, and construction workers can utilize this tool for accurate project planning, while educators and students can enhance their learning experience in mathematics and science. Additionally, travelers and outdoor enthusiasts will find it invaluable when navigating distances in different measurement systems.

Our Length Converter not only saves time but also eliminates the hassle of manual calculations, allowing users to focus on their tasks at hand. It’s accessible online, meaning you can use it anytime, anywhere, without the need for downloads or installations. The tool is optimized for both desktop and mobile devices, ensuring a seamless experience on any screen.

At D&D Technology, we are committed to providing high-quality digital solutions that empower users to achieve their goals efficiently. Explore our Length Converter today and experience the convenience of quick and reliable length conversions. Start using it now to simplify your measurement tasks and enhance your productivity!

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