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Does AI Virtual Try-On Tell You Your Size? An Honest Answer

No. Here is what a try-on preview can actually prove about fit, what it cannot, and how to pair it with measurements so you order once.

By the TryOn team3 min read

Articles are published in English.

No — and any tool that tells you otherwise is estimating from a photograph. A try-on preview shows you a picture of a plausible outcome; it does not measure your body. That distinction matters, because the two answers lead to different decisions.

What the preview is comparing

A try-on model works with what is visible: your silhouette, the length of your torso relative to your legs, where your waist falls, how wide your shoulders read, and the colour of your skin, hair and eyes. From those it places the garment. What it never sees is a number in centimetres.

  • It knows the jacket looks long on you. It does not know the sleeve is 61 cm.
  • It knows the waist seam sits high. It does not know your waist is 71 cm and the size chart says 74.
  • It knows the colour suits you. It does not know the fabric has 4% elastane.

The four things that decide whether a garment fits

FactorCan a preview show it?What to do instead
Silhouette and proportionYes, reliablyUse the preview — this is its strongest ground
Colour against your complexionYes, reliablyUse the preview, then check the return policy
Circumference (bust, waist, hip)NoMeasure yourself and read the size chart
Fabric behaviour (stretch, shrink, drape)Only if the product photo shows itRead the composition and the care label

Why the size chart alone is not enough either

Clothing sizes are not standardised. A "medium" from one brand can match a "large" from another, and the drift has been growing for two decades — this is why the same body can be a 38 in one shop and a 42 in the next. Two consequences follow:

  1. 1Always read the measurements column, not the letter size. A chart without measurements is decoration.
  2. 2Prefer brands that publish garment measurements (the flat width of the chest, the inseam) over body measurements — those are what you can compare against something you already own.

How to measure yourself in five minutes

Use a soft tape, wear light clothing, and keep the tape level and snug but not tight. Ask someone to help with the back if you can — a self-measured bust is routinely one size too small.

PointWhere the tape goesCommon error
BustAcross the fullest part, tape level under the armsMeasuring over a padded bra and not noting it
WaistNarrowest part of the torso, usually just above the navelHolding the breath, or measuring at the jeans waistband
HipFullest part of the seat, feet togetherMeasuring at the hip bone instead of the widest point
InseamCrotch seam to the ankle bone, on a pair that fitsMeasuring the outside of the leg
ShoulderSeam to seam across the backMeasuring the front, where the tape curves

Putting the two together

  1. 1Preview two or three sizes-equivalent options on your photo to rule out shapes that are wrong for you.
  2. 2Measure yourself once and write the numbers down, with the date.
  3. 3Compare your numbers to the size chart and pick the size that matches your largest relevant point.
  4. 4Check the return policy before ordering two sizes — that is often cheaper than a bad fit.

Rule out the shape first, then check the numbers

A preview costs one upload and answers the question a size chart cannot. Measurements still decide the size — but they only matter for garments you have already decided you like.

Preview the fit on your photo

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