Unit Converter
Enter your values and click calculate to see the results.
Change inches to centimeters, pounds to kilograms, and more!
About this Tool
Do you need to know how many miles are in a kilometer? Or how hot 30 degrees Celsius really is?
Our free Unit Converter makes it super easy to swap between different types of measurements without doing any math. Whether you are following a cooking recipe from another country, planning a road trip, or doing a science project, dealing with different measurement systems can be confusing.
This tool takes the headache out of conversions. Just enter your number, choose the units you are starting with, and pick what you want to convert to.
It gives you the exact answer instantly, covering length, weight, temperature, and more.
How to Use
Pick what kind of thing you are measuring, like Length, Weight, or Temperature.
Choose the unit you are starting with from the first list.
Choose the unit you want to change it into from the second list.
Type your number into the box.
See the exact new number right away!
The Formula
Every type of measurement uses a different math trick. The tool knows all the hidden math rules and multiplies your number by exactly the right amount to give you the perfect answer.
Examples
Frequently Asked Questions
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