If you find that you want to convert measurements - either way - it will take your typing time + .55 seconds in Google.

In the search box of your browser, type 22 1/4 inches, in mm and this is what you will see:

Up pops this:

In addition, you see the arrows? These are called drop down boxes and there are so many other choices like Miles, Kilometers, Yards, Meters, the list is really long!

If you like to do math - here is the conversion:

Multiply the millimeter size by .03937 to get the inch equivalent.

1-inch = 25.40 millimeters

The Internet is so cool!

Pat, The Avid Embroiderer

Here is my blog about using the Metric system.  Frankly, I have totally embraced it and find it easy and helpful.