Here’s the way to measure your hands for goalkeeper gloves:
You have to get the circumference of the middle of your hand, just below your knuckles but still above the thumb. Take the measurement in inches.
If your hand circumference is an odd measurement—then round up to the nearest inch and add one to find your size.
So if the circumference of your hand is 7 ¾ inches, then your goalkeeper glove size would be 9.
Please note this is a not a perfect size guide, and will only provide an indication as to what size should fit you.