Lay your hand flat on top of a ruler or measuring tape. Measure across the four knuckles. It usually ends up being close to your t-shirt size, but mileage does vary. If you have a t-shirt size very different from the glove size, you might want to compromise a little (i.e., your "glove size" is Medium and "t-shirt size" is X-Large, you might want to go with a size Large glove).
| Size | Inches | Metric (cm) |
|---|---|---|
| Child Small | Under 2 7/8” | 7.30 | Child Medium | 2 7/8” – 3 1/8” | 7.30 – 7.90 | Child Large/Adult X-Small | 3 1/8” – 3 1/4” | 7.90 – 8.25 |
| Adult Small | 3 1/4” to 3 3/8” | 8.25 – 8.50 |
| Adult Medium | 3 3/8” to 3 5/8” | 8.50 – 9.20 |
| Adult Large | 3 5/8” to 3 3/4” | 9.20 – 9.50 |
| Adult X-Large | 3 3/4” to 3 7/8” | 9.50 – 9.90 |