Unit Converter
Convert between units of length, weight, temperature, area, volume, speed and time. Fast, accurate, and free.
Frequently Asked Questions
Select 'Length', enter your value, set From to 'kilometer' and To to 'mile'. 1 km = 0.621371 miles. Results update instantly.
Select the 'Temperature' category, enter your Celsius value, and set To to 'fahrenheit'. Formula: F = C × 9/5 + 32.
Length, Weight/Mass, Temperature, Area, Volume, Speed, and Time — with a comprehensive set of units in each category.
Yes. Click the ⇄ swap button between the dropdowns to instantly reverse the conversion direction.
Unit Categories
Our unit converter supports the following categories:
- Length: meters, kilometers, miles, feet, inches, centimeters, yards, and more
- Weight / Mass: kilograms, grams, pounds, ounces, tons
- Temperature: Celsius, Fahrenheit, Kelvin
- Area: square meters, acres, hectares, square feet
- Volume: liters, gallons, milliliters, fluid ounces, cups
- Speed: km/h, mph, m/s, knots
- Time: seconds, minutes, hours, days, weeks