Unit Converter

Convert between units of length, weight, volume, temperature, speed, area, time, and digital storage instantly.

About the Unit Converter

The Unit Converter lets you convert between hundreds of common units across eight categories: length, weight/mass, volume, temperature, speed, area, time, and digital storage. Whether you're converting miles to kilometers, pounds to kilograms, or Fahrenheit to Celsius, results appear instantly as you type.

This tool is essential for international cooking, travel, engineering, science homework, and everyday conversions. All conversions use precise conversion factors and the tool handles both metric and imperial systems seamlessly.

How to Use This Tool

  1. Select a category (length, weight, volume, etc.) from the tabs.
  2. Choose the "From" unit using the first dropdown.
  3. Choose the "To" unit using the second dropdown.
  4. Enter a value in the input field.
  5. The converted result appears instantly.
  6. Click the swap button (⇄) to reverse the conversion direction.

Frequently Asked Questions

How accurate are the conversions?

All conversions use standard precise conversion factors. Results are accurate to at least 10 significant digits, then rounded for display.

Can I convert temperature?

Yes. The converter supports Celsius, Fahrenheit, and Kelvin with the correct non-linear formulas (not simple multiplication).

What length units are supported?

Millimeters, centimeters, meters, kilometers, inches, feet, yards, miles, nautical miles, and micrometers.

Does it support digital storage units?

Yes — bits, bytes, kilobytes, megabytes, gigabytes, terabytes, and their binary equivalents (KiB, MiB, GiB, TiB).

What is the difference between metric and imperial?

Metric uses base-10 units (meters, grams, liters) used worldwide. Imperial uses feet, pounds, gallons and is primarily used in the US and UK.

Can I use this for cooking conversions?

Yes. The volume category includes cups, tablespoons, teaspoons, milliliters, liters, fluid ounces, pints, quarts, and gallons.

More Tools