How to Accurately Measure Your Motorcycle Helmet for Optimal Fit and Safety
- Animesh Roy
- May 22
- 4 min read
Updated: Sep 15
Getting the right fit for your motorcycle helmet is essential. A properly fitted helmet not only enhances your comfort while riding but also plays a critical role in your safety on the road. In this guide, we will walk you through the straightforward process of measuring your head to ensure you select a helmet that fits perfectly.

The Significance of a Proper Fit
Fit matters when it comes to motorcycle helmets. A helmet that is too loose could come off during an accident, reducing your protection. On the other hand, a helmet that is too tight can create discomfort and distract you while riding. According to a study by the Motorcycle Safety Foundation, wearing a well-fitted helmet can reduce the likelihood of head injuries by as much as 69%.
By learning how to measure your head accurately, you can choose a helmet that provides both security and comfort, enhancing your overall riding experience.
Essential Tools for Measuring
Before you start measuring, gather these basic tools:
A soft measuring tape (like the kind used in sewing)
A mirror for better visibility
A notepad and pen to jot down your measurements
These items will help you take accurate measurements, making the process easy and effective.
Step-by-Step Head Measurement
Step 1: Prepare for Measurement
Choose a quiet and well-lit space with a mirror. Ensure your hair is down and not styled in a way that could alter the head shape. This way, you will get the most accurate measurement.
Step 2: Measure Head Circumference
To measure your head circumference, follow these steps:
Place the measuring tape around the widest part of your head, which is usually just above your eyebrows and ears.
Wrap the tape comfortably but snugly, making sure it remains level.
Record the measurement in centimeters or inches, as most helmet size charts utilize both.
A well-fitted helmet typically has a circumference measurement that fits snugly without pressure points.
Step 3: Measure Head Length and Width (Optional)
If you want a more accurate fit, you can measure the length and width of your head:
Length: Measure from your forehead to the back of your head.
Width: Measure across the widest part of your head from left to right.
These additional measurements can help you find a helmet that matches your head shape better. For example, those with a head width of 6.5 inches might need a specific helmet shape for optimal comfort.
Selecting the Right Helmet Size
Reference the Size Chart
After notes on your measurements, refer to the manufacturer's size chart for the helmet you are considering. Here are some common sizes you may encounter:
Small (S): 20¾” - 21⅞” (52-56 cm)
Medium (M): 21⅝” - 22¼” (55-57 cm)
Large (L): 22¾” - 23⅝” (58-60 cm)
Extra Large (XL): 23⅞” - 24⅝” (61-63 cm)
Make sure to compare your measurements with the size chart to find the ideal helmet fit.
Consider Various Helmet Shapes
Helmets come in different shapes to suit different head styles. Understanding your head shape can lead to a better fit. Common helmet shapes include:
Round oval
Intermediate oval
Long oval
Choosing a helmet shape that fits your head shape can improve comfort during long rides.
Trying on Helmets
In-Person Shopping Benefits
While online shopping is convenient, visiting a local store allows you to try on different helmets. This way, you can check the fit and comfort directly. Here’s how to evaluate the fit:
Put the helmet on and ensure it is snug but not overly tight.
Adjust the retention system—this includes straps and buckles.
Shake your head gently while wearing the helmet. It should feel stable and not shift easily.
Breaking In Your Helmet
Once you buy a helmet, wear it during short rides to help break it in. This allows you to identify any pressure points and adjust strap settings as needed. Surprisingly, many riders report that helmets fit better after a few hours of use.
Helmet Maintenance for Longevity
Caring for your helmet is essential for both safety and longevity. Here are some tips to maintain your helmet in great shape:
Regular Cleaning: Clean your helmet with a soft cloth and mild soap. Avoid harsh chemicals that can damage the surface.
Damage Inspection: Regularly check for any scratches or cracks. Damaged helmets should be replaced immediately, as they can compromise safety.
Proper Storage: Store your helmet in a cool, dry place, away from direct sunlight to prevent degradation of materials.
Final Thoughts on Helmet Measurement
Measuring your motorcycle helmet correctly is a vital step in ensuring your safety and comfort on the road. By following the outlined steps, you can achieve a fit that enhances your riding experience while providing essential protection.
Make sure to measure accurately, refer to the size charts, and consider your head shape when selecting a helmet. Remember, the right helmet is not just gear; it's a crucial part of your motorcycle safety. Enjoy your rides safely!