Easily convert any units

Enter the units you have, the units you want, and click CONVERT.
No long menus to slow you down. Simply type your units.
Enter any combination of units - english, metric, or mixed.
Recognizes all common units and their abbreviations.
All conversions are checked for consistency.

• Excel Add-In now available for Mac Office 2011!

Convert units often?

• Try DimensionEngine.com

ChangeUnits

From: (e.g. 3 cm or 3.4 kg inch/s^2, etc.)

To: (e.g. inch or gallon or Pa/m^2, etc.)

Use Excel?

Use the ChangeUnits unit converter for Excel -- just download and install. The Add-in allows you to convert values in any Excel cell to whatever units you want in a single step.

What ChangeUnits Users Say about our Excel Add-in

"I plan on keeping this with me as a tool to use for the rest of my engineering career!"

"It is better than most programs because it is not overly particular on what you enter. I have used some where you must type things a certain way (s^2 does not equal s*s) and all the symbols are specialized. It makes it confusing, but this program is better."

"A very useful tool. The implementation of the array formulas is a great touch. I will make good use of the add-in, and share it with my friends."

"A particularly useful application for laboratory research and student experiments considering how data must often be amassed in units that are convenient for observation, rather than post-experimental calculations."

"I am very impressed by the amount of different units the add-in can convert."

"Installation is incredibly easy."