A hat in the right size can still fit badly, and a hat that feels fine in the shop can give you a headache by lunchtime. Knowing how a hat should fit comes down to five signs, all of which you can check in a mirror in under a minute.
This guide covers where a hat should sit, the five signs of a good fit, and how to fix one that is slightly off. More in our Size Guides section.
Where a Hat Should Sit
Most structured hats sit level on the head, about a finger's width above the eyebrows at the front and above the ears at the sides. The band rests on the widest part of the head, not on top of it.
Some styles sit differently by design: a cloche sits lower on the forehead, a beret sits further back or tilted, and a beanie can be worn high or low. For those, the position is part of the style rather than a sign of fit.
Five Signs a Hat Fits
- One finger slides comfortably between the band and your head
- It sits level, about a finger's width above your ears and eyebrows
- It stays on when you turn your head quickly or walk in a light breeze
- It leaves no red mark or line on your forehead after twenty minutes
- It does not wobble or shift when you nod
Signs the Size Is Wrong
Too Small
- It sits on top of the head rather than around it
- It leaves a red line or causes a headache
- It pops up when you move
Too Big
- It drops over the eyebrows or ears
- It shifts or spins when you turn your head
- It blows off in a light breeze
Head Shape: When the Size Is Right but the Fit Is Not
Heads vary in shape as well as size. A longer, more oval head can find that a hat in the right circumference presses at the front and back while gapping at the sides; a rounder head can find the opposite. If a hat in your size feels tight in two places and loose in two others, the shape is the issue rather than the size.
A milliner can shape a felt hat to your head, and some hats are made in different head shapes. The hat size calculator includes head-shape guidance for this reason.
Fixing a Hat That Is Slightly Off
Slightly Too Big
Add hat tape or a foam sizing insert behind the inner band. It takes up a little space and is invisible when the hat is on. This is why, between two sizes, the larger is the safer choice.
Slightly Too Small
A felt hat can sometimes be stretched a little with a hat stretcher or by a milliner. Straw hats generally cannot. Knit hats stretch on their own.
If you have not measured yet, start with how to measure hat size. For how precise each style needs to be, see hat types and sizing; for choosing a style, the best hats for your face shape and the face shape detector. Keep a good hat in shape with how to store and care for a felt hat, and for the same between-sizes rule across other garments, what to do between sizes. Gloves follow similar logic — see how a glove should fit.
Hat Size Calculator
Head circumference to fitted, S/M/L and EU hat sizes.
Try this free calculator to find your exact match.
Frequently Asked Questions
How should a hat fit?
How tight should a hat be?
What do I do if my hat is too big?
Can a hat be stretched?
Why does my hat hurt at the front and back?
For background on how hat sizes are defined, see hat size, and on the craft of fitting and shaping hats, the hatmaker.
Brand and sizing data on this site is reviewed quarterly. If a figure here is wrong, email fashion@womensfashioneu.com and it will be checked and corrected.
