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Hold your hand flat with your palm facing up and your fingers together. Lay a ruler onto your palm vertically with the zero mark at the base of your hand. Record the number in inches or millimeters that you see on the ruler at the top of your middle finger. Goalie gloves are supposed to fit somewhat loosely. Because of this, you’ll need to add 1 inch (25 mm) in order to get the right size. This is only the case for adult sizes, not youth sizes. For example, if the length of your hand is 7 ¾ inches (197 mm), you’re a size 9 because you’d round up to 8 inches (200 mm) and then add 1 inch (25 mm). Unlike adult sizes, youth sizes match the hand length measurement. If you’re a kid, all you need to do is measure the length of your hand and round up to the nearest whole number. For example, if your hand length is 4 ¾ inches (121 mm), then you’re a youth size 5. If the length of your hand measures just over a whole number, then you might be in between sizes. If this happens, you can verify your size by measuring your hand a different way. Use a ruler or measuring tape to measure across the widest part of your palm. Double that number and then add 1 inch (25 mm) to find your size. For example, if the width of your palm measures 3 ¼ inches (83 mm), you’d double that to get 6 ½ inches (165 mm) and round up to 7 inches (180 mm). This means that you’re a size 7.

Summary:
Use a ruler to measure the length of your hand. Round up and add 1 inch (25 mm) to determine adult size. Round up to the nearest whole number to determine youth size. Verify your size by measuring the width of your palm.