The sizes of a baseball cap (common size charts)

Adult a cap sizes

The distinctive part of a cap is the presence of the visor of different length and form.

The size of a cap is determined by the traditional method, by taking measurements of the head circumference.

There are several cap styles, out of which the most fashionable are:

3 panels caps;
5 panels caps;
8 panels caps.

Important: most cap models are either made of elastic materials, or have size regulating elements.

Determining the size of a hat by the size charts:

Different producers use different methods for determining and marking the caps sizes.

In order not to make a mistake when choosing a cap the above size chart should be used.

The four main caps sizes:

S/M: for ladies with head circumference of 52-57 (cm);
M/L: for head circumference of 57-61 (cm);
L/XL: respectively, for 61-64 (cm);
Size Fits All: universal – for 54-62 (cm).

Women’s Baseball cap Size Conversion Chart

Ru Size in the Russian measurement system (centimeters)	INT International letter size	USA Size in the American measurement system	IN Size in inch measurement system (inches)
51	XXXS	6-3/8	20-1/8
52	XXXS	6-1/2	20-1/2
53	XXS	6-5/8	20-7/8
54	XXS	6-3/4	21-1/4
54.9	XS	6-7/8	21-5/8
55.8	S	7	22
56.8	M	7-1/8	22-3/8
57.7	L	7-1/4	22-3/4
58.7	XL	7-3/8	23-1/8
59.6	XL	7-1/2	23-1/2
60.6	XL	7-5/8	23-7/8
61.5	XXL	7-3/4	24-1/4
63	XXXL	7-7/8	24-5/8
64	XXXL	8	25
65	XXXXL	8-1/4	25-1/3

Baseball cap Size Chart - full drawing

Baseball cap Size Chart

INT International letter size	Head circumference Head circumference (cm) Horizontal circumference around head. Measurements are made over ears.	Head circumference Head circumference (cm) Horizontal circumference around head. Measurements are made over ears.
XXXS	51	20-1/8
XXXS	52	20-1/2
XXS	53	20-7/8
XXS	54	21-1/4
XS	54.9	20-5/8
S	55.8	22
M	56.8	22-3/8
L	57.7	22-3/4
XL	58.7	23-1/8
XL	59.6	23-1/2
XL	60.6	23-7/8
XXL	61.5	24-1/4
XXXL	63	24-5/8
XXXL	64	25
XXXXL	65	25-1/3

Women’s Baseball cap Oversize Chart - full drawing

Women’s Baseball cap Oversize Chart

INT International letter size	Head circumference Head circumference (cm) Horizontal circumference around head. Measurements are made over ears.	Head circumference Head circumference (cm) Horizontal circumference around head. Measurements are made over ears.
M	56.8	22-3/8
L	57.7	22-3/4
XL	58.7	23-1/8
XL	59.6	23-1/2
XL	60.6	23-7/8
XXL	61.5	24-1/4
XXXL	63	24-5/8
XXXL	64	25
XXXXL	65	25-1/3

Men’s Baseball cap Size Conversion Chart

Ru Size in the Russian measurement system (centimeters)	INT International letter size	USA Size in the American measurement system	IN Size in inch measurement system (inches)
51	XXXS	6-3/8	20-1/8
52	XXXS	6-1/2	20-1/2
53	XXS	6-5/8	20-7/8
54	XXS	6-3/4	21-1/4
54.9	XS	6-7/8	21-5/8
55.8	S	7	22
56.8	M	7-1/8	22-3/8
57.7	L	7-1/4	22-3/4
58.7	XL	7-3/8	23-1/8
59.6	XL	7-1/2	23-1/2
60.6	XL	7-5/8	23-7/8
61.5	XXL	7-3/4	24-1/4
63	XXXL	7-7/8	24-5/8
64	XXXL	8	25
65	XXXXL	8-1/4	25-1/3

Baseball cap Size Chart - full drawing

Baseball cap Size Chart

INT International letter size	Head circumference Head circumference (cm) Horizontal circumference around head. Measurements are made over ears.	Head circumference Head circumference (cm) Horizontal circumference around head. Measurements are made over ears.
XXXS	51	20-1/8
XXXS	52	20-1/2
XXS	53	20-7/8
XXS	54	21-1/4
XS	54.9	20-5/8
S	55.8	22
M	56.8	22-3/8
L	57.7	22-3/4
XL	58.7	23-1/8
XL	59.6	23-1/2
XL	60.6	23-7/8
XXL	61.5	24-1/4
XXXL	63	24-5/8
XXXL	64	25
XXXXL	65	25-1/3

Men’s Baseball cap Oversize Chart - full drawing

Men’s Baseball cap Oversize Chart

INT International letter size	Head circumference Head circumference (cm) Horizontal circumference around head. Measurements are made over ears.	Head circumference Head circumference (cm) Horizontal circumference around head. Measurements are made over ears.
M	56.8	22-3/8
L	57.7	22-3/4
XL	58.7	23-1/8
XL	59.6	23-1/2
XL	60.6	23-7/8
XXL	61.5	24-1/4
XXXL	63	24-5/8
XXXL	64	25
XXXXL	65	25-1/3

Kids Baseball cap Size Conversion Chart

Ru Size in the Russian measurement system (centimeters)	INT International letter size	USA Size in the American measurement system	IN Size in inch measurement system (inches)
48	-	6	18.9
49.2	XXXXS	6-1/8	19-1/3
50.2	XXXS	6-1/4	19-3/4
51	XXXS	6-3/8	20-1/8
52	XXXS	6-1/2	20-1/2
53	XXS	6-5/8	20-7/8
54	XXS	6-3/4	21-1/4
54.9	XS	6-7/8	21-5/8
55.8	S	7	22

Baseball cap Size Chart - full drawing

Baseball cap Size Chart

INT International letter size	Head circumference Head circumference (cm) Horizontal circumference around head. Measurements are made over ears.	Head circumference Head circumference (cm) Horizontal circumference around head. Measurements are made over ears.
-	48	18.9
XXXXS	49.2	19-1/3
XXXS	50.2	19-3/4
XXXS	51	20-1/8
XXXS	52	20-1/2
XXS	53	20-7/8
XXS	54	21-1/4
XS	54.9	20-5/8
S	55.8	22

Baseball cap Oversize Chart - full drawing

Baseball cap Oversize Chart

INT International letter size	Head circumference Head circumference (cm) Horizontal circumference around head. Measurements are made over ears.	Head circumference Head circumference (cm) Horizontal circumference around head. Measurements are made over ears.
XXXS	51	20-1/8
XXXS	52	20-1/2
XXS	53	20-7/8
XXS	54	21-1/4
XS	54.9	20-5/8
S	55.8	22

Teenages Baseball cap Size Conversion Chart

Ru Size in the Russian measurement system (centimeters)	INT International letter size	USA Size in the American measurement system	IN Size in inch measurement system (inches)
51	XXXS	6-3/8	20-1/8
52	XXXS	6-1/2	20-1/2
53	XXS	6-5/8	20-7/8
54	XXS	6-3/4	21-1/4
54.9	XS	6-7/8	21-5/8
55.8	S	7	22
56.8	M	7-1/8	22-3/8
57.7	L	7-1/4	22-3/4
58.7	XL	7-3/8	23-1/8
59.6	XL	7-1/2	23-1/2

Baseball cap Size Chart - full drawing

Baseball cap Size Chart

INT International letter size	Head circumference Head circumference (cm) Horizontal circumference around head. Measurements are made over ears.	Head circumference Head circumference (cm) Horizontal circumference around head. Measurements are made over ears.
XXXS	51	20-1/8
XXXS	52	20-1/2
XXS	53	20-7/8
XXS	54	21-1/4
XS	54.9	20-5/8
S	55.8	22
M	56.8	22-3/8
L	57.7	22-3/4
XL	58.7	23-1/8
XL	59.6	23-1/2

Baseball cap Oversize Chart - full drawing

Baseball cap Oversize Chart

INT International letter size	Head circumference Head circumference (cm) Horizontal circumference around head. Measurements are made over ears.	Head circumference Head circumference (cm) Horizontal circumference around head. Measurements are made over ears.
XL	60.6	23-7/8
XXL	61.5	24-1/4
XXXL	63	24-5/8
XXXL	64	25
XXXXL	65	25-1/3

Warning: the above data are official figures of the clothing manufacturers, however, it should be borne in mind that the information is for reference and does not guarantee unambiguous accuracy.

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