Unit Converter

What is a unit converter?

A unit converter helps you change a measurement from one unit to another without changing the quantity being measured. For example, you can convert miles to kilometers, pounds to kilograms, Fahrenheit to Celsius, or gallons to liters.

DigitalMind Tools provides a simple way to handle common conversions between metric and US customary units. The tool is designed for everyday tasks such as travel, cooking, schoolwork, home projects, and general calculations.

How to use the unit converter

You can complete a conversion in just a few steps:

1. Select a category: Choose length, weight / mass, temperature, speed, area, or volume.
2. Choose the starting unit: Select the unit you want to convert from.
3. Choose the destination unit: Select the unit you want to convert to.
4. Enter a value: Type the number you want to convert. The result updates automatically.
5. Swap units when needed: Use the ⇄ button to reverse the conversion direction.

You can also use the Convert button to update the result manually.

Metric and US customary units

Different countries use different measurement systems. The metric system is based largely on powers of ten and is used throughout most of the world. In the United States, many everyday measurements use US customary units such as inches, feet, miles, pounds, and gallons.

Converting between these systems is common when traveling, reading international specifications, following recipes, studying science, or working with measurements from different sources.

What can you convert?

The current version of the tool supports six common measurement categories:

• Length: meters, kilometers, miles, yards, feet, inches, centimeters, and millimeters.
• Weight / mass: kilograms, grams, pounds, ounces, milligrams, metric tons, and stones.
• Temperature: Fahrenheit, Celsius, and Kelvin.
• Speed: meters per second, kilometers per hour, miles per hour, knots, and feet per second.
• Area: square meters, square kilometers, square miles, square feet, square inches, acres, and hectares.
• Volume: liters, milliliters, US gallons, US quarts, US pints, US cups, US fluid ounces, and cubic meters.

Common uses for a unit converter

Unit conversions come up in many everyday situations. You might need to convert a distance while planning a trip, change a recipe from metric measurements to US customary units, compare product dimensions, or check measurements for a school or work project.

• Travel: Convert distances, temperatures, and other measurements when visiting another country.
• Cooking: Convert common volume and weight measurements used in different recipes.
• Education: Practice and check measurement conversions for math and science assignments.
• Home projects: Convert dimensions, areas, and measurements when planning projects or buying materials.
• Work: Convert measurements when reviewing specifications, documents, or information from different sources.

Does the unit converter work in the browser?

Yes. The conversion calculations are performed directly in your web browser using JavaScript. The tool does not need an account, file upload, database, or paid API to perform its core conversions.

This browser-based approach makes the converter quick to use and means the values you enter into the converter are not required to be uploaded to a server for the calculation itself.

Frequently Asked Questions (FAQ)

Need another calculation tool?

DigitalMind Tools offers other free browser-based utilities for everyday calculations and tasks. Try the Calculator or Percentage Calculator for other common calculations.

For additional information about measurement standards and the International System of Units (SI), see the National Institute of Standards and Technology (NIST) guide to SI units .