Nolan Helmet Size Conversion Chart

This Nolan Helmet Size Conversion Chart will help you to determine what AGV helmet size will provide you with the best fit.

Measure your head size. Pass a tape measure horizontally around your head at a height of about one inch (2.5cm) above your eyebrows. This will measure the largest portion of your head.

Select the helmet that is closest to your head size. Often times your head measurement may fall between two helmet sizes. When this occurs you should first try on the smaller size.

Helmet should have a snug fit around your head yet remain comfortable for long riding periods.

Size Inch Around Hat Size cm
X-Small 20-7/8 6-5/8 54
Small 21-5/8 6-7/8 56
Medium 22-1/2 7-1/8 58
Large 23-1/4 7-3/8 60
X-Large 24 7-5/8 62
XX-Large 24-7/8 7-7/8 64
XXX-Large 25-5/8 8-1/8 66