H&M runs small. Most shoppers size up from their usual size, especially in tops. H&M runs small, especially in European sizing. Size up one from your usual. Basics and jersey pieces are more forgiving; structured and denim pieces run the smallest. Check the category notes below for tops, bottoms, and outerwear specifically.
Blazers and structured shirts: true to size in mainline, but Slim Fit runs a full size small. Check the label.
Confidence: High, based on official size chart and shopper sentiment
Sizing overview
Most shoppers start one size up. Use the notes below to see where H&M feels slimmer, roomier, or more consistent across categories.
H&M runs small. Generally true to size, but 'Slim Fit' line is very narrow.
Plain-language cut notes and examples below show where pieces usually feel closer, roomier, or most predictable.
GENERAL BRAND GUIDANCE
This is a general brand-level sizing summary, not an exact product recommendation. For your specific size, paste a product link into the fit checker.
H&M runs small. H&M runs small, especially in European sizing. Size up one from your usual. Basics and jersey pieces are more forgiving; structured and denim pieces run the smallest.
Sizing tendency
Most shoppers start one size up.
Consistency
High variation across categories.
Best check
Start with the category note, then check whether the cut is meant to feel structured or relaxed.
Variability and caveats
Cut
Structured pieces usually feel smaller first, especially through the shoulders, waist, or hip.
Fabric stretch
Fabric stretch changes how strongly the sizing tendency shows up: more give softens it, less give makes it more obvious.
Styling
Different collections or sub-lines can use different fit blocks, so styling changes may matter as much as the label size.
Generally true to size, but 'Slim Fit' line is very narrow.
What to expect
Expect tops to follow the label fairly closely unless the piece is intentionally oversized or sharply tailored.
Waist sizing is consistent, but length can vary.
What to expect
Expect bottoms to follow the label fairly closely unless the piece is intentionally oversized or sharply tailored.
H&M runs small. Compared to similar brands shoppers frequently compare against:
Both run small, your size should be similar at both brands.
H&M runs small, while ASOS Design is true to size. Your size may differ between these brands.
H&M runs small, while Uniqlo is true to size. Your size may differ between these brands.
Both run small, your size should be similar at both brands.
H&M runs small. H&M runs small, especially in European sizing. Size up one from your usual. Basics and jersey pieces are more forgiving; structured and denim pieces run the smallest. Most shoppers start one size up.
If you wear a Medium in standard contemporary sizing, plan to try a Large at H&M first, especially in structured or fitted pieces. Fit can vary across tops and bottoms, so confirm against the specific category you are shopping.
Yes. Fit varies by category at H&M, covering tops and bottoms, since the same brand often cuts tops and bottoms to different proportions.
H&M publishes an official size chart, and ThisFits cross-references it against real shopper fit reports. H&M shows high variation across categories, so the chart is a reliable starting point with adjustments based on cut.
Since H&M tends to run small, sizing up usually means fewer returns when you are between sizes, especially for fitted tops and tailored bottoms.
H&M sizes similarly to Zara and COS, many customers prefer the next size up. Shoppers commonly compare H&M against other contemporary labels in the same category to translate sizes between brands they already wear.
H&M typically accepts returns on unworn items with tags within the window stated on the order page or receipt. Policies vary by retailer and third-party sellers may differ, so confirm before ordering.