I used to think choosing a snowboard helmet was mostly about picking a size from a chart. Then I learned that head shape, how you measure, and how the helmet sits can matter just as much as the number. A helmet can look right on paper and still feel wrong once you put it on.
If you’re wondering how to measure snowboard helmet size, the good news is that you only need a soft measuring tape and a few minutes. I’ll walk you through the method I find easiest, explain how to read the result, and cover the small fit mistakes that can turn a good helmet into an annoying one.
How to Measure Snowboard Helmet Size at Home
The basic method is simple. Measure around the widest part of your head, then compare that number with the helmet’s size chart.
I prefer measuring twice because it is very easy to pull the tape too tight or place it slightly too high. A one-centimeter difference can sometimes move you into another size range.
| What you need | Why you need it |
|---|---|
| Soft measuring tape | Measures your head circumference |
| Mirror | Helps keep the tape level |
| Someone to help | Makes the measurement more even |
Where Should You Measure Your Head?
Place the tape around the largest part of your head. It should pass across your forehead, just above your eyebrows, and around the widest area at the back of your skull.
Keep the tape level all the way around. It should touch your head without pressing into your skin.
| Tape position | Correct? |
|---|---|
| Just above eyebrows | Yes |
| Across the widest back area | Yes |
| Around the crown only | No |
| Loose and tilted | No |
The first time I measured my head, I made the mistake of holding the tape too high. The result looked neat, but it was not the measurement I actually needed.
Step-by-Step: How to Measure Snowboard Helmet Size
Once you have the tape in the right place, take the measurement in centimeters. Most snowboard helmet charts use centimeters, so this makes comparing sizes much easier.
Here is the process I use.
Step 1: Put the Tape Around Your Head
Start above your eyebrows and wrap the tape around your head. Bring it around the widest part of the back.
Do not suck in your forehead or pull the tape hard. You want the tape to sit naturally against your head.
Step 2: Keep the Tape Level
Look in a mirror or ask someone to check the tape from behind. A tilted tape can give you a measurement that is too small or too large.
I find this is one of the easiest parts to get wrong without noticing.
Step 3: Record the Measurement
Write down the number in centimeters. For example, you might get 56 cm.
Take the measurement again. If you get 56 cm and then 57 cm, measure one more time and use the most consistent result.
| Result | What to do |
|---|---|
| Same twice | Use that number |
| 1 cm difference | Measure again |
| Large difference | Check tape position |
Step 4: Check the Helmet Size Chart
Do not assume every medium helmet has the same size range. Different helmet makers can use different sizing systems.
Your head measurement is the starting point. The manufacturer’s size chart is the final guide.
Why Head Circumference Is Not the Whole Story
This surprised me when I first looked into helmet fit. Two people can have the same head circumference but need different helmet shapes.
One head may be rounder. Another may be longer from front to back. That is why measuring your head is important, but it is not the only step.
| Measurement | What it tells you |
|---|---|
| Head circumference | Basic helmet size |
| Head shape | Likely comfort and pressure points |
| Helmet fit | Whether the size works in practice |
A helmet should not hurt in one small spot just because the circumference is correct.
What If My Head Is Between Two Helmet Sizes?
This is where I would slow down rather than simply choosing the larger size.
Check the helmet’s adjustment system first. Some helmets can fine-tune the fit over a useful range. If the smaller size feels painfully tight or creates pressure points, the larger size may be better if you can secure it properly.
| Situation | Better approach |
|---|---|
| Slightly between sizes | Test the adjustment system |
| Small size causes pressure | Try the larger size |
| Large size moves around | Try the smaller size |
| Neither feels right | Try another helmet shape |
I would not buy a helmet just because the number matches. Comfort matters because you are much more likely to wear a helmet correctly when it feels good.
How Should a Snowboard Helmet Fit After Measuring?
Once you have measured your head, the next job is checking the actual fit. A properly sized helmet should feel snug and secure without causing pain.
When I shake my head gently, the helmet should move with my head instead of sliding around. It should also sit level and cover the forehead without blocking my view.
Signs Your Snowboard Helmet Is Too Small
A helmet may be too small if you feel strong pressure in one or more areas.
Watch for these signs:
- Pain around the forehead
- Strong pressure at the temples
- A persistent headache
- A painful pressure point
- Difficulty putting the helmet on
| Sign | Likely issue |
|---|---|
| Forehead pressure | Helmet may be too small |
| Temple pain | Shape may not match |
| Headache | Fit is too tight |
| Difficult to put on | Size or shape may be wrong |
Do not assume that padding will magically solve a badly tight helmet. If the shell itself does not match your head, another size or shape may be the better answer.
Signs Your Snowboard Helmet Is Too Large
A loose helmet can be just as frustrating. It may shift when you look around or move during a fall.
If you can easily rock the helmet forward and backward, I would check the size and adjustment system.
| Sign | Better approach |
|---|---|
| Helmet slides | Tighten adjustment |
| Large gaps | Try another size |
| Helmet rocks | Recheck fit |
| Moves during head shake | It is too loose |
A secure fit is the goal. You should not need to constantly push the helmet back into place while riding.
Do You Measure for a Snowboard Helmet With Hair?
Yes. Measure your head with your normal hair style.
If you have long or thick hair, do not wrap the tape around a large bun or ponytail. That can give you a measurement that is bigger than the actual area the helmet needs to fit.
I would also avoid measuring with a thick hat underneath. A snowboard helmet should be sized around your head, not around bulky winter gear.
| Hair setup | Measurement advice |
|---|---|
| Short hair | Measure normally |
| Long loose hair | Keep it flat |
| Ponytail | Remove it |
| Thick bun | Remove it |
A thin helmet liner can be considered later, but it should not replace an accurate head measurement.
What If the Helmet Size Chart Seems Confusing?
Helmet charts can look different from one another, which is why I always check the exact chart for the helmet I am considering.
For example, one manufacturer might label a range as small while another uses a different range for small. The letters alone do not tell you enough.
| What to compare | Why |
|---|---|
| Centimeter range | Most useful starting point |
| Size label | Helps identify the model size |
| Adjustment range | Shows how much fit can be changed |
The centimeter range is usually more useful than thinking, “I always wear a medium.”
Common Snowboard Helmet Measuring Mistakes
The easiest way to get the wrong size is to rush the measurement.
I have found that most problems come from simple things: holding the tape too high, pulling it too tight, or skipping the second measurement.
| Mistake | Better method |
|---|---|
| Tape is too tight | Keep it snug, not tight |
| Tape sits too high | Measure the widest area |
| Measuring over a hat | Measure your head directly |
| Taking one reading | Measure twice |
Another mistake is buying based only on head circumference. Your measurement gets you close, but the helmet still needs to match your head shape.
Should You Try a Snowboard Helmet Before Buying?
If you can try one on, I would. Online size charts are useful, but they cannot tell you exactly where a helmet will create pressure.
Put the helmet on, fasten the chin strap, adjust the fit system, and move your head around. Give it a few minutes instead of taking it off after ten seconds.
What Should You Check During a Fit Test?
The helmet should stay in place without feeling painful. You should also have a clear view and enough room to move your head naturally.
| Fit check | What you want |
|---|---|
| Head movement | Helmet stays stable |
| Forehead | Snug, not painful |
| Chin strap | Secure and comfortable |
| Vision | Clear and unobstructed |
If you feel one sharp pressure point after several minutes, I would take that seriously. A helmet that feels “almost right” in the shop may become very annoying after several hours on the mountain.
Can You Use a Hat Under a Snowboard Helmet?
You can use a thin liner designed for helmet use, but bulky hats can change the fit.
This is one reason I prefer to test the helmet with the layers I expect to wear. A helmet that fits perfectly over bare hair may feel much tighter with a thick winter hat underneath.
| Under-helmet layer | Fit impact |
|---|---|
| Thin liner | Usually small |
| Thick beanie | Can alter fit |
| Bulky hood | Can affect stability |
If you need more warmth, I would look for a helmet and liner combination that works together rather than forcing a thick hat underneath.
My Simple Snowboard Helmet Size Routine
After dealing with the little frustrations of helmet sizing, I keep the process simple. I measure my head twice, write down the number in centimeters, check the exact size chart, and then focus on the fit.
I also pay attention to pressure points and movement. The right helmet should feel secure without making me think about it every few minutes.
| Step | What I do |
|---|---|
| 1 | Measure head circumference |
| 2 | Repeat the measurement |
| 3 | Check the exact size chart |
| 4 | Test the helmet fit |
| 5 | Check for movement and pressure |
That process takes only a few minutes and can save a lot of frustration later.
Final Thoughts
Learning how to measure snowboard helmet size is not hard. The key is to measure around the widest part of your head, keep the tape level, use centimeters, and compare the result with the specific helmet’s size chart.
The part I would not skip is the fit check. Your head circumference gets you into the right size range, but comfort, head shape, and stability decide whether that helmet is actually right for you.
FAQs About How to Measure Snowboard Helmet Size
How do you measure for a snowboard helmet?
Wrap a soft tape around the widest part of your head, just above your brows and around the back. Record the size in centimeters and check the maker’s chart.
What size snowboard helmet do I need?
Measure your head first, then compare the result with the helmet’s size chart. Do not rely on small, medium, or large labels alone.
Do you measure a snowboard helmet with a hat on?
No. Measure your bare head. A thick hat can make the measurement too large and may cause you to choose a helmet that does not fit well.
Should a snowboard helmet feel tight?
A snowboard helmet should feel snug, not painful. It should stay in place when you move your head, with no strong pressure points or loose gaps.
What if my snowboard helmet size is between sizes?
Try the adjustment system first. If one size causes pressure and the other moves too much, try a different helmet shape instead of forcing the fit.
Olivia
Writer at Helmet Today, covering helmet reviews, fit and riding safety.