Buying a hat online should be easy. Then you hit the size dropdown and suddenly you're negotiating with your own forehead.
You like the look. You can already see it working on the course, at the range, or leaning against the bar after the round. But “S/M” and “7 3/8” aren't helpful if you've never measured your head. That's where many often stall out. They guess, order, and hope for the best.
That's a lousy strategy for hats. A cap that pinches will bother you all day. A beanie that floats around can make even a good outfit look accidental. If you've ever wondered how to measure head size the right way, the fix is simple. You need a good measurement, a little common sense, and a clear idea of how that number translates into the hat you want to wear.
That "Will It Fit?" Moment We All Know
You're scrolling for a new cap. Maybe it's a clean golf look, maybe it's something with a little personality for the 19th hole. You find one that's exactly your style. Then comes the dropdown menu. Small? Medium? Fitted? Stretch fit? One size? That's when confidence leaves the room.
Most fit problems start before the hat ever ships. People don't usually pick the wrong hat. They pick the wrong size because they never measured properly in the first place. They use a rough guess from an old baseball cap, or they assume all brands fit the same. They don't.
A proper head measurement takes only a minute, and it saves a lot of back-and-forth. It also gives you freedom. Once you know your real number, you can shop fitted caps, structured golf hats, relaxed knits, and stretch styles without feeling like you're gambling on your own skull.
A hat should feel intentional the second you put it on. Not like you borrowed it from a buddy with a different head.
For the 2ndShotMVP crowd, that matters. A golf cap has to sit right when you're over the ball, not creep down your brow or ride high like it's confused. A beanie should look relaxed when you want relaxed, not sloppy because the size is off. Good style starts with good fit, and good fit starts with measuring the head the right way.
Gather Your Head Measuring Arsenal
You don't need a lab coat to do this well, but the right tool helps. The goal is simple. Measure the largest circumference of your head with something flexible and readable.
The gold standard
A flexible sewing tape measure is the cleanest option. It wraps around the head easily, stays flat, and gives you a direct reading without any conversion gymnastics. If you've got one in a junk drawer, you're already ahead of the game.
This is the method I'd use first for anyone buying a fitted cap or comparing a measured size against a hat chart.
The DIY backup
No tape measure? Use string or yarn plus a ruler. Wrap the string around your head where the hat will sit, mark the overlap point with your fingers, then lay it flat against a ruler. It works well enough if you keep the string straight and don't stretch it while measuring.
A few practical notes:
- Use a non-stretch string: Thick elastic cord will lie to you.
- Mark the overlap carefully: “Somewhere around here” is how people end up with return labels.
- Lay it flat before reading: Twisted string adds slop to the measurement.
The printable option
Some shoppers like a printable paper measuring strip. It can work, especially if you don't own a flexible tape. The weak point is printing accuracy. If the page isn't printed at full scale, the number is off before you even start.
If you wear stretch styles often, it's also worth knowing how different constructions behave once you have your size. This quick guide to stretch-to-fit hats helps you match the measuring part to the kind of fit you want.
Practical rule: Use the flexible tape if you have it. Use string if you must. Treat printable strips like a decent backup, not the clubhouse champion.
The Foolproof Method to Measure Your Head
A bad fit usually shows up at the worst time. Your golf cap pinches by the third hole, or your beanie creeps up and turns into a watch cap you never asked for. The fix starts with one clean measurement taken where the hat will sit.
Set the tape where the hat lives
Wrap the tape around the fullest part of your head, which is typically across the mid-forehead, just above the ears, and around the broadest point at the back. The Bullard hat sizing guide describes the same general path and also recommends rounding up if you land between sizes.
Placement decides everything. Slide the tape too high and you'll measure a smaller circle than your hat uses. Let it dip too low and you're measuring below the line where a cap or beanie normally rests.
Take the measurement like you mean it
Stand in front of a mirror. Start at the center of your forehead and bring the tape around your head in one level loop. Keep it snug enough to stay in place, but loose enough that it still feels like a hat, not a blood pressure cuff.
A clean reading usually comes down to four small details:
- Keep the tape level all the way around: If it climbs in back or sags over the brow, the number is off.
- Press down bulky hair: You want your head size, not your hairstyle on humid days.
- Read the overlap straight on: Side-angle guessing is how people talk themselves into the wrong fitted size.
- Repeat the pass once or twice: If the numbers don't match, reset and do it again.
If you already know standard hats tend to feel cramped, this guide to golf hats for big heads can save you time once you have your measurement.
Match the tension to the hat style
This part gets skipped a lot, and it matters.
For a structured golf cap, measure with the tape comfortably close to the head. Those hats have shape, so a too-small reading usually turns into pressure across the forehead. For a soft beanie, keep the tape just as level but don't cinch it down. Knit fabric has some give, yet the wrong starting number still changes the look. Too small and it rides up. Too big and it slouches more than you planned.
That's the trade-off. Same head, different vibe. A cap wants cleaner precision. A beanie gives you a little grace, but it also broadcasts bad sizing faster.
This short demo can help if you want to see the motion in real time before trying it yourself.
Write down the final number right away. Use inches or centimeters, but stick to one. A precise measurement makes the stylish part much easier. Your cap sits right, your beanie drapes the way you want, and you stop gambling on fit.
Decoding Your Number A Hat Sizing Chart
Your measurement is the key. The sizing chart is the translator.
Brands usually present size in one of two ways. One is fitted sizing, with numbers like 7 1/4 or 7 3/8. The other is standard sizing, with labels like Small, Medium, Large, and XL. Neither system is more “correct.” They're just different ways of saying where your head falls on the chart.
If you wear golf caps, you'll see both systems often. Fitted hats speak in precision. Standard sizes are more common for casual shopping because they're easier to scan at a glance.
2ndShotMVP Hat Sizing Conversion Chart
| Inches | Centimeters | Fitted Size | Standard Size |
|---|---|---|---|
| 21 1/2 | 54.6 | 6 7/8 | Small |
| 21 7/8 | 55.6 | 7 | Small |
| 22 1/4 | 56.5 | 7 1/8 | Medium |
| 22 5/8 | 57.5 | 7 1/4 | Medium |
| 23 | 58.4 | 7 3/8 | Large |
| 23 1/2 | 59.7 | 7 1/2 | Large |
| 23 7/8 | 60.6 | 7 5/8 | XL |
| 24 1/4 | 61.6 | 7 3/4 | XL |
How to use the chart without overthinking it
If your measurement lands cleanly on one row, that's your home base. If it lands in between, use the same common-sense approach mentioned earlier and go up rather than down.
If you already know you've got a broader fit, this guide to golf hats for big heads is useful because it focuses less on theory and more on what tends to feel right in real wear.
The chart gives you a size. Your preferred hat style decides how that size should feel.
That's the part many people miss. A number tells you where to start. It doesn't tell you whether you want a cap to sit crisp and close, or a beanie to hang back a bit with some drape.
Style and Fit A Cap Is Not a Beanie
Same head. Different hat. Completely different job.
A structured golf cap should feel secure enough to stay put through a swing, a cart ride, and a windy walk from green to tee. A beanie plays by softer rules. You may want it close to the head on a cold morning, or looser with a little slouch for off-course wear. If you use the same fit expectations for both, one of them is going to disappoint you.
What works for a golf cap
Caps reward accuracy. You want the band to sit cleanly above the ears, the crown to look balanced, and the front panel to hold shape without pressing into your forehead. Too tight, and you'll know it by the back nine. Too loose, and it shifts every time you move your head.
Clinical measurement practice offers a smart standard here: measure twice, and if the first two readings differ by more than 0.5 cm, take a third and use the average (anthropometry measurement guidance). That's practical for style shopping too, especially if you switch between a snug cap and a softer knit.
What works for a beanie
Beanies give you more room to play, but they still need a proper base size. If the opening is too small, the hat climbs up and loses that relaxed look. If it's too roomy, it can bunch oddly or sit like it never quite committed to your head.
Here's the useful distinction:
- For a cuffed beanie: Aim for a cleaner, neater fit around the opening.
- For a slouchier wear: The crown can relax, but the base still has to anchor well.
- For all-day comfort: Soft doesn't mean shapeless.
If you like comparing silhouettes before you buy, this guide to types of golf hats is handy because it shows how style changes the fit conversation.
The real insider move
Don't ask only, “What size am I?” Ask, “How do I want this hat to behave?”
That question changes everything. A course cap should stay composed. A weekend beanie can be more forgiving. The number gets you in the door. The style tells you how to wear it well.
Frequently Asked Head Sizing Questions
What if I'm exactly between two sizes
Choose the larger size.
A hat with a little extra room can usually be adjusted, broken in, or worn lower on the head. A hat that is too tight tends to advertise itself fast. Pressure at the temples, a red line across the forehead, and that “I can't wait to take this off” feeling are all signs you sized down too far.
The exception is stretch knit. A beanie with give can forgive a close fit more easily than a structured golf cap can.
Does my hairstyle affect my hat size
Yes. Hair changes the reading, sometimes more than people expect.
Measure with your hair how you wear it under the hat. If you slick your hair down for a cap but wear your curls full under a beanie, those can behave like two different fitting situations. Thick hair at the sides, braids, locs, or a fresh blowout can all add enough bulk to change what feels right.
If your results are inconsistent, trust the tape reading around the hat line and use common sense about the style you plan to wear. A course cap usually wants a cleaner, closer fit. A casual beanie gives you more forgiveness.
Do all hat brands use the same sizing chart
No, and this catches shoppers all the time.
Sizes look familiar on paper, but construction changes the fit. A structured cap has less flexibility through the crown. An unstructured cap settles differently after a few wears. A beanie may match the same labeled size and still feel easier because the fabric stretches and the shape is softer.
Use your measurement as the starting point. Then check the brand's chart for that specific hat instead of assuming your old size will carry over cleanly.
Can I use an old hat size instead of measuring again
You can, but I would not bet a new purchase on it.
Older hats stretch, sweatbands soften, and favorite pieces mold to your head over time. That broken-in cap you love may fit perfectly now while giving you a very misleading reference for a brand-new one. If you have not measured in a while, do it again. It takes a minute and saves the usual guesswork.
What's the most common measuring mistake
A crooked tape is high on the list.
The other one is measuring the widest part of the skull instead of the line where the hat sits. Keep the tape level from front to back, keep it snug without squeezing, and read the number in a mirror if needed. A clean measurement beats confidence based on memory.
Once you know your number, buying hats gets a lot more fun. If you're ready to put that measurement to work, browse 2ndShotMVP for golf hats, beanies, and lifestyle headwear built for on-course rounds and off-course wear.
