Boohoo runs small. Most shoppers size up from their usual size, especially in tops. UK fast fashion, runs small, inconsistent between styles Check the category notes below for tops, bottoms, and outerwear specifically.
Boohoo sizing is inconsistent. Generally runs small with UK sizing.
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 Boohoo feels slimmer, roomier, or more consistent across categories.
Boohoo runs small. Runs small. Check measurements per item.
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.
Boohoo runs small. UK fast fashion, runs small, inconsistent between styles
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
Cut matters most when a piece is intentionally tailored or intentionally oversized.
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.
Runs small. Check measurements per item.
What to expect
Expect tops to feel closer than the label suggests, especially in more structured pieces.
Runs small. Size up 1.
What to expect
Expect dresses to feel closer than the label suggests, especially in more structured pieces.
Boohoo runs small. UK fast fashion, runs small, inconsistent between styles Most shoppers start one size up.
If you wear a Medium in standard contemporary sizing, plan to try a Large at Boohoo first, especially in structured or fitted pieces. Fit can vary across tops and dresses, so confirm against the specific category you are shopping.
Yes. Fit varies by category at Boohoo, covering tops and dresses, since the same brand often cuts tops and dresses to different proportions.
Boohoo publishes an official size chart, and ThisFits cross-references it against real shopper fit reports. Boohoo shows high variation across categories, so the chart is a reliable starting point with adjustments based on cut.
Since Boohoo tends to run small, sizing up usually means fewer returns when you are between sizes, especially for fitted tops and tailored bottoms.
Boohoo sizes similarly to Zara and COS, many customers prefer the next size up. Shoppers commonly compare Boohoo against other contemporary labels in the same category to translate sizes between brands they already wear.
Boohoo 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.