The sizes of caps (common size charts)

The sizes of hats

The order of taking the measurements:

For determining the size of a hat there is one measurement that is important:

head circumference: the measurement is taken horizontally, the tape measure is placed 1-2 (cm) above the eyebrows and ears and connected at the back of the head.

The sizes of hats:

The obtained number is the size of the hat. But for more accurate choice of a model the allowances should be taken into consideration.

Important: generally, a standard hat should tightly fit the head, that means, 0.5-1.5 (cm) allowance should be deducted from the originally taken measurements, for loose fit.

Other important hat parameters:

1. The bottom diameter: head circumference divided by 3.14 (the number pi), considering the deduction of 1.5-2 (cm) allowance.

2. The depth of a hat: measured from the top of the hat (the vertex) to the bottom line. The standard formula for calculating the depth: head circumference divided by 3.

the depth for summer hats: head circumference divided by 3+1 (cm) allowance for loose fit;
the depth for winter hat: head circumference divided by 3+2 (cm) allowance for loose fit.

Important: the standard depth and bottom diameter is considered for hats that cover the middle of the ear, for nonstandard hats the allowances for loose fit are different.

How the size depends on other parameters:

1. The hat pattern: if the hat has a volume pattern, when taking the measurement of the head circumference 1 (cm) allowance should be deducted from the result, considering the stretching.

2. Hat thickness: for a loose or volume hat, 1-2 (cm) should be deducted from the head circumference.

3. The fabric of a hat: cotton and wool shrink for 1-2 (cm) with time, acrylic and viscose, on the contrary, stretch for 1-2.5 (cm).

Important: for thick, non-stretching and smooth fabrics the allowances should not be considered.

Caps 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)
47	XXXXS	5-7/8	18-1/2
48	XXXS	6	18-7/8
49	XXXS	6-1/8	19-1/4
50	XXS	6-1/4	19-5/8
51	XXS	6-3/8	20-1/8
52	XS	6-1/2	20-1/2
53	XS	6-5/8	20-7/8
54	S	6-3/4	21-1/4
55	S	6-7/8	21-5/8
56	M	7	22
57	M	7-1/8	22-1/2
58	L	7-1/4	22-7/8
59	L	7-3/8	23-1/4
60	XL	7-1/2	23-5/8
61	XL	7-5/8	24
62	XXL	7-3/4	24-1/2
63	XXL	7-7/8	24-7/8
64	XXXL	8	25-1/4
65	XXXL	8-1/8	25-5/8

Men’s Caps Size Chart - full drawing

Men’s Caps 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.	Rise depths Rise depth (cm) Distance from nape to forehead. Having noted the point to which you plan to move hat while wearing, measure from it to the protrusion on nape.	Bottom Distance between temples (cm)
XXXXS	47	18-1/2	16-18	14.9
XXXS	48	18-7/8	16-18	15.2
XXXS	49	19-1/4	16-18	15.6
XXS	50	19-5/8	16-18	15.9
XXS	51	20-1/8	18-20	16.2
XS	52	20-1/2	18-20	16.6
XS	53	20-7/8	18-20	16.9
S	54	21-1/4	18-20	17.2
S	55	21-5/8	20-21	17.5
M	56	22	20-21	17.8
M	57	22-1/2	20-21	18.2
L	58	22-7/8	21-23	18.5
L	59	23-1/4	21-23	18.8
XL	60	23-5/8	21-23	19.1
XL	61	24	23-25	19.4
XXL	62	24-1/2	23-25	19.7
XXL	63	24-7/8	23-25	20.0
XXXL	64	25-1/4	23-25	20.3
XXXL	65	25-5/8	25-27	20.6

Men’s Caps large Size Chart - full drawing

Men’s Caps large 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.	Rise depths Rise depth (cm) Distance from nape to forehead. Having noted the point to which you plan to move hat while wearing, measure from it to the protrusion on nape.	Bottom Distance between temples (cm)
XXL	62	24-1/2	23-25	19.7
XXL	63	24-7/8	23-25	20.0
XXXL	64	25-1/4	23-25	20.3
XXXL	65	25-5/8	25-27	20.6

Women’s Caps Size Chart - full drawing

Women’s Caps 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.	Rise depths Rise depth (cm) Distance from nape to forehead. Having noted the point to which you plan to move hat while wearing, measure from it to the protrusion on nape.	Bottom Distance between temples (cm)
XXXXS	47	18-1/2	16-18	14.9
XXXS	48	18-7/8	16-18	15.2
XXXS	49	19-1/4	16-18	15.6
XXS	50	19-5/8	16-18	15.9
XXS	51	20-1/8	18-20	16.2
XS	52	20-1/2	18-20	16.6
XS	53	20-7/8	18-20	16.9
S	54	21-1/4	18-20	17.2
S	55	21-5/8	20-21	17.5
M	56	22	20-21	17.8
M	57	22-1/2	20-21	18.2
L	58	22-7/8	21-23	18.5
L	59	23-1/4	21-23	18.8
XL	60	23-5/8	21-23	19.1
XL	61	24	23-25	19.4
XXL	62	24-1/2	23-25	19.7
XXL	63	24-7/8	23-25	20.0
XXXL	64	25-1/4	23-25	20.3
XXXL	65	25-5/8	25-27	20.6

Women’s Caps large Size Chart - full drawing

Women’s Caps large 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.	Rise depths Rise depth (cm) Distance from nape to forehead. Having noted the point to which you plan to move hat while wearing, measure from it to the protrusion on nape.	Bottom Distance between temples (cm)
XL	60	23-5/8	21-23	19.1
XL	61	24	23-25	19.4
XXL	62	24-1/2	23-25	19.7
XXL	63	24-7/8	23-25	20.0
XXXL	64	25-1/4	23-25	20.3
XXXL	65	25-5/8	25-27	20.6

Kids Caps Size Chart - full drawing

Kids Caps Size Chart

Ru Size in the Russian measurement system (centimeters)	Head circumference Head circumference (cm) Horizontal circumference around head. Measurements are made over ears.	Bottom Distance between temples (cm)	Rise depths Rise depth (cm) Distance from nape to forehead. Having noted the point to which you plan to move hat while wearing, measure from it to the protrusion on nape.
35	35	x	x
36	36	11.5	12-14
37	37	11.8	12-14
38	38	12.1	12-14
39	39	12.4	12-14
40	4	12.7	12-14
41	41	13.1	15-16
42	42	13.4	15-16
43	43	13.7	15-16
44	44	14	15-16
45	45	14.3	16-17
46	46	14.6	16-17
47	47	15	16-17
48	48	15.3	16-17
49	49	15.6	18-20
50	50	15.9	17-18
51	51	16.2	18-20
52	52	16.6	18-20
53	53	16.9	18-20
54	54	17.2	18-20

Teenages Caps Size Chart - full drawing

Teenages Caps Size Chart

INT International letter size	Ru Size in the Russian measurement system (centimeters)	Head circumference Head circumference (cm) Horizontal circumference around head. Measurements are made over ears.	Bottom Distance between temples (cm)	Rise depths Rise depth (cm) Distance from nape to forehead. Having noted the point to which you plan to move hat while wearing, measure from it to the protrusion on nape.
XS	52	52	16.6	18-20
XS	53	53	16.9	18-20
S	54	54	17.2	18-20
S	55	55	17.5	20-21
M	56	56	17.8	20-21
M	57	57	18.2	20-21
L	58	58	18.5	21-23
L	59	59	18.8	21-23

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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