How do you measure head circumference on a bike helmet?

What size helmet do I need for a 25 inch head?

Sizing

Hat Size Circumference (Inches) Approximate Size
8 25
8 1/8 25 3/8
8 1/4 25 3/4
8 3/8 26 1/8 Largest helmet on our Big Heads page.

How do you measure head size?

To measure your head circumference, take a sewing measuring tape or even a string, and wrap around above the ears and across your eyebrows. Please stick your finger under the tape so there is a little room and there you have head circumference! If you fall between measurements go for the next size up.

What size helmet is 56cm?

In general, a size small helmet measures 55 – 56 cm or 21 ⅝ – 22 in inches. In terms of hat size, a small helmet is a size 6 ⅞ – 7.

How do you measure for helmet size?

SIZING: To measure your head size, wrap a tape measure horizontally around your forehead. Select the helmet that is the closest fit to that size. A helmet should fit snug on your head. If it moves while wearing, it is too large.

How do you measure for a full face mountain bike helmet?

A correct sized full face helmet should feel snug on your head and shouldn’t move back and forth or side to side when you move your head. One way to test if a helmet is fitting you right or not is when you put the helmet on its front should be no more than an inch above your eyebrows.

IT IS INTERESTING:  Question: How do you travel with a bike?

What’s the average head circumference?

According to Wikipedia, one study in the United States shows, the average adult head circumference to be 55cm (21 3⁄4 ) in females and 57cm (22 1⁄2 in) in males. Another study conducted in UK shows a slightly different result: with the average female head size being 55.2 cm and the average male head size being 57.2 cm.

What is a normal head circumference?

The average head circumference at birth is about 13.5 in. (34.5 cm).

How long do you measure head circumference?

The cranium is documented to grow from birth through adolescence. The standard of practice in primary care is measuring head circumference and plotting growth using curves that stop at 36 months.