How many inches are in an aluminum egg bar shoe that measures 140 millimeters wide and 165 millimeters long? Or what about figuring the Fahrenheit temperature equivalent for a hoof repair material that the label indicates shouldn’t be used when temperatures are below 7 degrees C.?

If it took you more than a half-second to come up with the answers, then maybe it’s time to look into a couple of Web sites that offer a speedy way of converting from the metric system to the English system and vice versa. 

Busy, Informative And Confusing 

Upon typing www.onlineconversion.com, the screen turns into a blue background with a gray information box in the middle. While it looks like there are many different categories to choose from, each conversion link is lettered in white type, which makes it very difficult to read.

The first selection, “length/distance,” may not be obvious upon first glance as the letters fade into the background. Immediately following the almost invisible “length/distance” header are words such as “millimeters, centimeters, inches, feet, yards and meters,” which should alert the viewer that this is a link to access length conversions.

Once inside the link, converting measurements from inches to millimeters is no problem. All a person has to do is type in the number to be converted, select “from” and “to” and the Web site does the rest.

FAST FIGURES. Onlineconversion.com brags that it can “convert just about anything to anything else.”

The site offers several everyday conversions such as…