The question is more nuanced than it sounds
It depends entirely on what you are buying and how much you already know about the brand.
Cases where you can skip it
- Reordering a garment you already own in the same brand and fabric.
- Buying from a brand whose fit you have learned.
- Basics where the risk is low and returns are cheap.
- Custom or made-to-measure work, where measurements are the point.
Cases where a fitting room still wins
Anything where drape matters. A dress that measures correctly can still hang badly because of how the fabric falls on your posture, and no measurement captures that.
A tailor is not measuring you to record numbers. They are assessing how a specific fabric behaves on your specific body. See AI versus a tailor.
Why the fitting room matters most right now
Because size charts are unreliable in a way they never were. Research measuring over 1,000 garments across 50 UK brands found only 64% matched their own published chart within 1 cm, and average within-brand variance was 4.2 cm.
Chart accuracy fell to 54% at UK 20-22. For plus-size shoppers, sizing inconsistencies were cited by 46% of respondents in a 2025 survey, against 34% of mid-size and 25% of straight-size shoppers.
When the published information is unreliable, physically checking the garment becomes more valuable, not less.
What you can do instead
If you cannot visit a fitting room, substitute evidence for experience:
- Read fit reviews specifically, not style reviews.
- Look for reviews from people with a similar size to yours.
- Check whether the brand publishes finished garment measurements.
- Buy two sizes when return shipping is free, and keep both.
- Buy one, return it, then know the brand permanently.
The strategy that works
For unfamiliar brands, treat the first purchase as a measurement of the brand, not of you. Once you know how their large runs, you can order confidently ever after.
That is the real answer: the fitting room is most valuable the first time you try a brand, and unnecessary the fifth.
Related: using measurements properly online.