How do I read a hat size chart?

Find your head measurement (in inches or cm) in the chart rows. Read across to find the corresponding US, UK, or EU size. If you are between sizes, always round up to the next size.

Are all brand charts the same?

Most brands follow standard sizing, but some may vary slightly. Always check the specific brand's chart if available, or use the CM measurement for the most universal fit.

What is the most common hat size?

For men, the most common size is 7 3/8 (approx 59cm). For women, it is often "One Size Fits Most" or around 57cm.

Hat Size Conversion Chart

Complete hat size conversion chart and table. Compare US, UK, EU, and CM hat sizes side-by-side. Find your perfect fit with our accurate guide.

Reference Table

Complete size conversion chart

US	UK	EU	Inches	CM	AU	JP
6 1/4	6 1/8	50	19.625	50	50	XS
6 3/8	6 1/4	51	20	51	51	XS
6 1/2	6 3/8	52	20.375	52	52	XS
6 5/8	6 1/2	53	20.75	53	53	S
6 3/4	6 5/8	54	21.25	54	54	S
6 7/8	6 3/4	55	21.625	55	55	S
7	6 7/8	56	22	56	56	M
7 1/8	7	57	22.375	57	57	M
7 1/4	7 1/8	58	22.75	58	58	L
7 3/8	7 1/4	59	23.125	59	59	L
7 1/2	7 3/8	60	23.5	60	60	LL
7 5/8	7 1/2	61	23.875	61	61	LL
7 3/4	7 5/8	62	24.25	62	62	3L
7 7/8	7 3/4	63	24.625	63	63	3L
8	7 7/8	64	25	64	64	4L

📏 How to Measure Your Head

1. Proper Tape Placement

The most important step for an accurate fit:

Diagram showing proper head measurement for hat sizing: tape 1 inch above eyebrows and just above ears

Place tape about 1 inch (2.5cm) above eyebrows.
Ensure tape is just above your ears.
Keep the tape level all the way around.

2. Know Your Head Shape

Shape affects fit as much as size:

Diagram comparing Long Oval vs Round Oval head shapes

Long Oval: Longer front-to-back (most common).
Round Oval: More circular shape.
If you have a round head, you might need to size up.

💡 Fit Check: Tight vs. Right

Comparison showing correct vs incorrect hat fit

Comfort is key!

A hat should sit comfortably above your ears without leaving red marks on your forehead. It should be snug enough to stay on in a breeze, but loose enough to not give you a headache.

✓ Correct: Level, comfortable, no pressure
✗ Incorrect: Too high, red marks, headache

Frequently Asked Questions

💡Quick Answer

To find your hat size, measure your head circumference in inches or cm. Compare this measurement to the chart below. For example, a head size of 22 inches (56cm) is typically a US Size 7.

Related Hat Size Charts

Explore related conversion tools to find exactly what you need

Hat Size Conversion Chart

Reference Table

📏 How to Measure Your Head

1. Proper Tape Placement

2. Know Your Head Shape

💡 Fit Check: Tight vs. Right

Frequently Asked Questions

💡Quick Answer

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