Sweater Size Chart

Sweater sizes are based on chest circumference (body measurement) or chest width (garment measurement), depending on the style and brand. Sweaters and sweatshirts add more ease than t-shirts but typically less than hoodies. A regular-fit sweater adds 3–5 inches of ease over the body chest circumference. Knit sweaters, fleece crewnecks, and cardigans have different sizing conventions because their construction materials respond differently to body movement and laundering. This guide covers garment and body measurements for every major sweater type with fabric context and decoration specs for branded production.

TLDR: Sweatshirt crewneck garment chest width (pit-to-pit) x 2 = approximate body circumference the garment fits. A pit-to-pit of 21 inches on a size M crewneck fits a 40–43 inch body chest. Knit sweaters run slightly smaller than sweatshirts at the same label because knit fabric has less inherent ease. Cardigans and open-front styles require 1–2 inches less ease to close properly at the front.

For branded apparel production, sweater type determines the front panel structure and available decoration zones. A crewneck sweatshirt has a clean, uninterrupted front panel, the most versatile format for large front prints and full-chest embroidery. A quarter-zip sweatshirt has a partial zipper at the collar that limits center-chest placement but leaves the lower chest panel fully open. A cardigan has an open front that eliminates any front panel as a continuous decoration surface.

Key Takeaways

Sweatshirts add 3–5 inches of ease; knit sweaters add 2–4 inches: Fleece crewneck sweatshirts have more ease built in than knit sweaters at the same chest label because fleece does not stretch with the body the way knit does. A knit sweater with 2 inches of ease will feel comfortable because the knit stretches; a fleece sweatshirt with the same ease would feel restrictive.
Pit-to-pit is the production measurement: All garment measurements in this guide use pit-to-pit (armhole seam to armhole seam across the front when laid flat). Double the pit-to-pit to estimate the body circumference the garment fits.
Cardigans must be sized differently from pullovers: A cardigan needs to close at the front without pulling. Size the cardigan to the same chest circumference as a regular-fit pullover at the same label, but expect the fit to feel snugger when buttoned because the front panels meet rather than overlap.
Ribbed knit trims affect sleeve and body length after washing: Cuffs, hem bands, and collar ribbing on knit sweaters and sweatshirts stretch in length when worn and contract when washed. Over multiple wash cycles, ribbed trims shrink by 5–10% more than the main body fabric, which shortens sleeve and body length perception over time.
Quarter-zip placement affects left chest decoration: The zipper placket on a quarter-zip extends approximately 8–10 inches down from the collar. Any left chest embroidery or print must clear the placket seam by at least 0.5 inches, which shifts the logo slightly farther from center than on a crewneck.

How to Measure for a Sweater?

Sweater measurements use the same body measurement points as shirts and hoodies, with one additional consideration for knit styles: measure over a single layer of lightweight clothing, not over a t-shirt and another sweater. The extra layer adds 0.5–1 inch to the measured chest circumference and causes oversizing when matched to a knit size chart built for body-only measurements.

Measurement	Method	Used For
Chest / Bust	Wrap tape around the fullest part of the chest, under the arms and across the shoulder blades. Keep the tape horizontal. Measure over a thin underlayer only.	All sweater types: primary sizing input
Center Back Length	Measure from the center back of the neck (where the collar meets the back panel) straight down to the hem. Stand relaxed with arms at sides.	Knit sweaters, long cardigans, oversized styles
Shoulder Width	Measure from the edge of one shoulder seam to the other, straight across the upper back. Stand relaxed.	Structured sweaters, blazer-weight cardigans
Sleeve Length (CB)	Measure from the center back neck, across the shoulder point, and down the arm to the wrist bone. Slightly bend the elbow during measurement.	All long-sleeve sweater types

Men’s Crewneck Sweatshirt Size Chart

The crewneck sweatshirt is the most common sweater format in branded apparel production. It has a ribbed collar, ribbed cuffs, and a ribbed hem band on a fleece body. Measurements below are garment measurements (pit-to-pit chest width and top-of-shoulder to hem body length) at standard mid-weight fleece construction of 10–12 oz.

Size	Chest Width / Pit-to-Pit (in)	Chest Width (cm)	Body Length (in)	CB Sleeve Length (in)	Body Chest Circumference (in)
XS	18–19 in	45.7–48.3 cm	25–26 in	31–32 in	32–34 in
S	19–20 in	48.3–50.8 cm	26–27 in	32–33 in	34–38 in
M	20–21 in	50.8–53.3 cm	27–28 in	33–34 in	38–42 in
L	22–23 in	55.9–58.4 cm	28–29 in	34–35 in	42–46 in
XL	24–25 in	61–63.5 cm	29–30 in	35–36 in	46–50 in
2XL	26–27 in	66–68.6 cm	30–31 in	36–37 in	50–54 in
3XL	28–29 in	71.1–73.7 cm	31–32 in	37–38 in	54–58 in
4XL	30–31 in	76.2–78.7 cm	32–33 in	38–39 in	58–62 in

Women’s Crewneck Sweatshirt Size Chart

Women’s crewneck sweatshirts use a narrower shoulder pattern, a shorter body length, and a tapered waist compared to unisex sweatshirts at the same chest label. The garment chest width on a women’s M is approximately 1.5–2 inches narrower than a unisex M. Women who prefer the boxy fit of a unisex crewneck should size up one to two sizes from their women’s measurement.

Size	Chest Width / Pit-to-Pit (in)	Waist Width (in)	Body Length (in)	Body Bust Circumference (in)	US Numeric
XS	16.5–17 in	14.5–15 in	23–24 in	31–33 in	0–2
S	17.5–18 in	15.5–16 in	24–25 in	33–35 in	4–6
M	18.5–19 in	16.5–17 in	25–26 in	35–37 in	8–10
L	20–20.5 in	18–18.5 in	26–27 in	38–40 in	12–14
XL	21.5–22 in	19.5–20 in	27–28 in	41–43 in	16–18
2XL	23–23.5 in	21–21.5 in	28–29 in	44–46 in	20–22

Unisex Crewneck Sweatshirt Size Chart

The unisex crewneck sweatshirt is the most common format for branded group apparel. Measurements below are garment dimensions: pit-to-pit chest width and shoulder-to-hem body length, for a standard mid-weight fleece construction of 10–12 oz. The body chest circumference column shows the body measurement range the garment fits in standard unisex regular fit.

Size	Chest Width / Pit-to-Pit (in)	Chest Width (cm)	Body Length (in)	CB Sleeve Length (in)	Body Chest (in)
XS	18–19 in	45.7–48.3 cm	25–26 in	31–32 in	32–36 in
S	19–20 in	48.3–50.8 cm	26–27 in	32–33 in	34–38 in
M	20–21 in	50.8–53.3 cm	27–28 in	33–34 in	38–42 in
L	22–23 in	55.9–58.4 cm	28–29 in	34–35 in	42–46 in
XL	24–25 in	61–63.5 cm	29–30 in	35–36 in	46–50 in
2XL	26–27 in	66–68.6 cm	30–31 in	36–37 in	50–54 in
3XL	28–29 in	71.1–73.7 cm	31–32 in	37–38 in	54–58 in
4XL	30–31 in	76.2–78.7 cm	32–33 in	38–39 in	58–62 in

Knit Pullover Sweater Size Chart

Knit pullover sweaters use the same S/M/L/XL sizing system as sweatshirts but have different garment measurements at each label. Knit sweaters are designed with 2–4 inches of ease rather than the 3–5 inches typical of fleece sweatshirts, because knit fabric stretches with the body. A knit M at 19–20 inches pit-to-pit feels similar in body fit to a fleece crewneck M at 20–21 inches pit-to-pit because the knit expands during wear. Yarn weight (fine, medium, bulky) affects the stiffness and stretch of the fabric at the same garment measurement.

Size	Chest Width / Pit-to-Pit (in)	Center Back Length (in)	CB Sleeve Length (in)	Body Chest Circumference (in)	EU Size
XS	17–18 in	24–25 in	30–31 in	32–34 in	42–44
S	18–19 in	25–26 in	31–32 in	34–37 in	44–46
M	19–20 in	26–27 in	32–33 in	37–41 in	48–50
L	21–22 in	27–28 in	33–34 in	41–45 in	52–54
XL	23–24 in	28–29 in	34–35 in	45–49 in	56–58
2XL	25–26 in	29–30 in	35–36 in	49–53 in	60–62

Yarn weight and sizing behavior

Fine-weight knit sweaters (sock weight, fingering weight yarn) have significant stretch and fit close to the body. A fine-knit M at 19 inches pit-to-pit can comfortably fit a body chest of 38–41 inches because the knit expands by 2–4 inches across the chest under normal wear. Bulky-weight knit sweaters have minimal stretch: a bulky M at 21 inches pit-to-pit fits a body chest of approximately 40–42 inches with very little room for expansion. When ordering bulk knit sweaters for a branded program, confirm yarn weight with the manufacturer and adjust ease expectations accordingly.

Quarter-Zip and Half-Zip Sweatshirt Size Chart

Quarter-zip and half-zip sweatshirts have the same body pattern as crewneck sweatshirts at equivalent sizes, with a zipper placket replacing the ribbed collar construction. The quarter-zip placket extends approximately 8–10 inches from the collar edge. The half-zip placket extends approximately 12–15 inches from the collar. Both create a raised seam along the center chest that affects left-chest decoration placement and limits full-chest graphic placement in the upper chest zone.

Size	Chest Width / Pit-to-Pit (in)	Body Length (in)	Quarter-Zip Placket Depth (in)	Body Chest Circumference (in)	Left Chest Decoration Zone
S	19–20 in	26–27 in	8–9 in	34–38 in	3 x 3 in (clearance from placket)
M	20–21 in	27–28 in	8–9 in	38–42 in	3.5 x 3.5 in (clearance from placket)
L	22–23 in	28–29 in	9–10 in	42–46 in	3.5 x 3.5 in (clearance from placket)
XL	24–25 in	29–30 in	9–10 in	46–50 in	4 x 4 in (clearance from placket)
2XL	26–27 in	30–31 in	9–10 in	50–54 in	4 x 4 in (clearance from placket)

Cardigan Sweater Size Chart

Cardigans open at the front and are sized to the same chest circumference as regular-fit pullovers at the same label, but the front panels must close or overlap at the chest when buttoned. A cardigan at size M fits a body chest of approximately 38–41 inches, with the front panels meeting at center front when closed. At the upper end of the body chest range, the front panels will have minimal overlap when buttoned; at the lower end, they will overlap by approximately 1–2 inches.

Size	Chest Width Closed (in)	Center Back Length (in)	CB Sleeve Length (in)	Body Chest Circumference (in)	Button Overlap (in)
XS	17–18 in	24–25 in	30–31 in	31–33 in	1–1.5 in
S	18–19 in	25–26 in	31–32 in	33–36 in	1–1.5 in
M	19–20 in	26–27 in	32–33 in	36–41 in	0.5–1.5 in
L	21–22 in	27–28 in	33–34 in	41–45 in	0.5–1.5 in
XL	23–24 in	28–29 in	34–35 in	45–49 in	0.5–1 in
2XL	25–26 in	29–30 in	35–36 in	49–53 in	0.5 in (minimal)

Turtleneck and Mock Neck Sweater Size Chart

Turtleneck and mock neck sweaters size identically to crewneck sweaters at the body level. The difference is the collar construction: a full turtleneck collar extends 8–12 inches above the shoulder and folds down, while a mock neck extends 3–5 inches and does not fold. Neither affects the chest or body sizing, but both affect the perceived upper-body volume of the garment and the available decoration zones on the upper chest and shoulder areas.

Size	Chest Width / Pit-to-Pit (in)	Body Length (in)	Full Turtleneck Height (in)	Mock Neck Height (in)	Body Chest Circumference (in)
S	18–19 in	24–25 in	9–10 in (folded: 5 in)	3.5–4 in	34–37 in
M	19–20 in	25–26 in	9–10 in (folded: 5 in)	3.5–4 in	37–41 in
L	21–22 in	26–27 in	10–11 in (folded: 5.5 in)	4–4.5 in	41–45 in
XL	23–24 in	27–28 in	10–11 in (folded: 5.5 in)	4–4.5 in	45–49 in
2XL	25–26 in	28–29 in	10–11 in (folded: 5.5 in)	4–4.5 in	49–53 in

Youth Crewneck Sweatshirt Size Chart

Youth crewneck sweatshirts follow the same age-to-chest relationship as youth t-shirts and hoodies, with garment chest widths approximately 1–1.5 inches wider than a youth t-shirt at the same age label to accommodate the heavier fleece fabric and typical underlayer. Youth sweatshirts are available from most commercial blank suppliers starting at age 4, which corresponds to a garment chest width of approximately 13 inches.

Youth Size	Age Range	Chest Width / Pit-to-Pit (in)	Body Length (in)	CB Sleeve Length (in)	Body Chest Circumference (in)
YXS / 4–5	4–5 yr	13 in	16–17 in	21–22 in	23–25 in
YS / 6–8	5–8 yr	15 in	18–19 in	23–24 in	25–28 in
YM / 10–12	9–12 yr	17 in	20–21 in	25–26 in	28–32 in
YL / 14–16	12–14 yr	18.5 in	22–23 in	27–28 in	32–36 in
YXL / 18–20	14–16 yr	20 in	23.5–24.5 in	29–30 in	36–40 in

International Sweater Size Conversion

International sweater sizing does not follow a single global standard. The table below provides approximate conversions across the most common markets. As with all international size conversions, individual brand charts take precedence over these general equivalents because garment measurements at the same size label vary between manufacturers.

Chest (in)	US / Canada	UK / AU	EU / DE	France / IT	Japan
32–34 in	XS	XS	42–44	36–38	S
34–38 in	S	S	44–46	38–40	M
38–42 in	M	M	48–50	42–44	L
42–46 in	L	L	52–54	46–48	XL
46–50 in	XL	XL	56–58	50–52	2XL
50–54 in	2XL	2XL	60–62	54–56	3XL

Sweater Shrinkage and Care by Fabric Type

Sweater shrinkage varies more by fabric content than any other garment category because sweaters use a wider range of fibers than t-shirts or hoodies. Wool, cotton, synthetic blends, and specialty fibers all respond differently to heat and agitation in laundering. For branded sweatshirt programs using cotton-fleece blanks, the shrinkage profile is similar to hoodies. For knit wool or wool-blend sweaters, shrinkage risk is significantly higher and care instructions must be included with the product.

Fabric	First-Wash Shrinkage	Felting Risk	Recommended Care	Pre-shrunk Available
Cotton fleece (80/20)	3–5%	None	Warm machine wash, tumble dry medium	Yes
50/50 cotton-polyester fleece	1–2%	None	Warm machine wash, tumble dry low	Yes
100% cotton knit	4–6%	Low	Cold wash, lay flat to dry	Sometimes
Merino wool	2–4% (gentle cycle)	High if machine washed hot	Cold hand wash or wool cycle, lay flat	Sometimes (superwash treatment)
Acrylic knit	Less than 1%	None	Machine wash warm, tumble dry low	N/A (dimensionally stable)
Cotton-acrylic blend	1–3%	Low	Cold wash, tumble dry low	Sometimes

Ribbed trim shrinkage and length perception

Ribbed cuffs, hem bands, and collar ribbing shrink at a higher rate than the main body fabric in most sweater and sweatshirt constructions. On a cotton fleece sweatshirt where the body shrinks 3–5% in length, the ribbed hem band may shrink 7–10% in its relaxed (non-stretched) circumference. This tightens the hem band opening and can give the impression that the garment’s body length has shortened more than the fabric measurements indicate, because the tighter band draws the hem upward slightly when the garment is worn.

Decoration Constraints by Sweater Type

Sweater and sweatshirt type determines which decoration methods are viable and where they can be placed. The front panel structure is the primary constraint: uninterrupted panels support the largest decoration zones, while zippers, open fronts, and structured collars reduce the usable area.

Sweater Type	Full Front Print	Left Chest	Embroidery	Back Panel	Key Constraint
Crewneck sweatshirt	Yes	Yes	Excellent	Yes	None: most versatile format for all decoration methods
Quarter-zip sweatshirt	Below placket only	Yes (clear placket by 0.5 in)	Good (left chest)	Yes	Placket occupies upper 8–10 in of center chest
Knit pullover sweater	No (knit does not hold screen print)	Limited	Good with stabilizer	Limited	Knit surface requires backing; max stitch count reduced
Cardigan	No (open front)	Limited (small panel)	Good (left chest or back)	Yes	Front panels are narrow; back is primary decoration surface
Turtleneck / Mock neck	Yes (knit: no; fleece: yes)	Yes	Good	Yes	High collar obstructs upper chest; lower chest is primary zone

Embroidery on knit sweaters

Knit sweaters require a water-soluble or tear-away stabilizer beneath the embroidery area before stitching. Without stabilizer, the needle distorts the knit loops and the embroidered logo sinks into the fabric surface rather than sitting on top. After stitching, a water-soluble topping is removed; a tear-away backing is trimmed close to the stitching. Maximum practical stitch count on a knit sweater body panel is 8,000–12,000 stitches at a 3 x 3 inch design area. Above this density, the stabilizer cannot prevent the knit from puckering around the design perimeter.

Branded Sweater and Sweatshirt Production

MFG Merch produces custom branded sweatshirts and crewneck sweaters in unisex, women’s, and youth formats with screen print, embroidery, and DTF decoration. For orders where the front print must sit below a quarter-zip placket or clear a ribbed collar, we provide a placement diagram before production begins so artwork is positioned correctly on the confirmed garment dimensions. For knit sweater programs, we confirm stabilizer type and maximum stitch count against the specific yarn weight and knit construction of the blank before any sew-out is produced.

For custom cut-and-sew sweater programs built from original patterns and fabric specifications, reach out through the MFG Merch cut-and-sew page with your sweater type, fabric weight, construction details, and decoration requirements. The production team will confirm size chart, available fabric options, and minimum order quantities.

Get the Latest Sweater Size Chart

Sweater and sweatshirt blank specifications change when manufacturers update their patterns or introduce new fits. The measurements in this guide reflect current production standards and are accurate reference points for planning. Actual garment measurements should always be confirmed against the specific blank before finalizing decoration placement for a production order.

For accurate sizing and measurements, contact MFG Merch with the sweater style, blank brand, size range, fabric weight, decoration method, and order quantity. The production team can provide a confirmed garment spec sheet and detailed measurements tailored to your order, along with a customized quote.

FAQ

What is the difference between a sweatshirt and a sweater size chart?

Sweatshirts are made from fleece fabric and use garment chest width (pit-to-pit) as the primary sizing dimension. Sweaters are made from knit fabric and use a combination of chest width and ease allowance, where the knit stretch accounts for a smaller ease built into the garment. A sweatshirt M typically has a garment chest width of 20–21 inches with 3–5 inches of non-stretch ease. A knit sweater M has a garment chest width of 19–20 inches with 2–4 inches of stretch ease. Both fit the same body chest range of approximately 38–42 inches at size M, but through different mechanisms.

Should I size up for a sweatshirt or sweater?

Size to your measured body chest circumference using the size chart for the specific style and brand. For mid-weight fleece crewnecks at 10–12 oz, regular-fit sizing matches body measurements directly. For heavyweight fleece at 12 oz and above, size up 0.5 to 1 size if you are between sizes or at the upper end of a chest range. For knit sweaters, size to your chest measurement and allow the knit stretch to provide additional ease. Only size up if the knit is labeled as having minimal stretch (bulky or rigid construction) or if the brand’s chart explicitly recommends sizing up.

How do I prevent a cotton sweatshirt from shrinking?

Wash in cold water on a gentle cycle and tumble dry on low heat or lay flat to dry. Most shrinkage in cotton fleece occurs in the first wash under warm or hot water with high agitation. Pre-shrunk blanks reduce first-wash shrinkage to under 1–2%. If the sweatshirt is not pre-shrunk, the most effective prevention strategy is to machine wash cold and air dry flat for the first two washes, after which the remaining shrinkage potential in the fabric is largely exhausted.

Can a knit sweater be screen printed?

Standard knit sweaters cannot carry a screen-printed graphic. The knit surface is uneven and porous, which causes ink to bleed through the loops rather than sitting on the fabric surface. Heat transfer and DTF transfers adhere better to knit surfaces than screen printing but still produce an inferior result compared to a smooth woven or fleece surface. Embroidery is the preferred decoration method for knit sweaters because it penetrates the fabric structure and holds securely with a stabilizer backing. For branded knit sweater programs where a printed logo is required, a woven patch or embroidered badge sewn onto the garment is the production-appropriate alternative.

What is the correct size if I fall between two sweater sizes?

Size up when between sizes on a fleece sweatshirt and size to the smaller option when between sizes on a knit sweater. Fleece sweatshirts do not stretch significantly, so a size that is slightly too small will feel restrictive through the chest and shoulders and will be difficult to layer over a shirt. A knit sweater that is slightly too small will stretch to accommodate the body measurement, whereas a knit sweater that is too large will sag through the shoulders and lose its shape. The directional rule is: fleece, size up; knit, size to body or down.

Ellie

Ellie is a content specialist focused on product and branding strategy, with over 5 years of experience in brand consulting and 3 years in apparel and promotional product manufacturing. Her writing offers deep, practical insights that help readers gain a clearer understanding of product development and build brands that stand out with purpose and authenticity.