Different positions on the baseball field use different-sized baseball gloves. Infielders need to make a glove-to-throwing-hand exchange quickly to throw out speedy runners; they use smaller gloves to find the caught ball more quickly. Outfielders need to track down long line drives, and pitchers need to hide their pitch grips form the batter; they tend to use larger gloves. Generally, the measurement, displayed in inches, is stamped on the "catch" side of the glove. If it is not, don't worry. It's easy to measure a baseball glove at home.
Look inside the baseball glove for the pre-stamped measurement. Usually the measurement is engraved on the catch side of the pinkie finger. The catch side is the inside of the glove, where the pocket is.
2
Lay the glove down, catch side up, if you can't find a measurement stamp. Take the end of your flexible tape measure and fix it to the top of the index finger on the catch side.
3
Form the flexible measuring tape to the curve of the catch side of the glove. Feed it down into the pocket and lay it over the thumb crotch in a straight line. The thumb crotch is the heel of the catch side of the glove nearest the thumb joint.
4
Read the measurement. Generally gloves will range from 8 to 12.75 inches. Interestingly, professional baseball does not allow gloves larger than 12 inches, though the rule is rarely mentioned or enforced.
Tips & Warnings
If you don't have a flexible tape measure handy you can look at the make of the glove and visit the manufacturer website. Browse its database of gloves and identify yours by the name of serial number. The measurement will be displayed on the website.
