The KORRA Blog
Straight answers about AI body measurement, sizing accuracy and why clothes fit the way they do. Every figure here is sourced.
How Accurate Are AI Body Measurement Apps, Really?
Every AI body measurement app will claim centimetre-level accuracy. Very few will show you the test conditions behind that number. When you look for the actual publ…
Can AI Really Measure Your Body From a Photo?
A photograph is a 2D projection of a 3D body. Software can infer depth from shading, limb overlap and known proportions, but it is reconstructing something the came…
Why Do Online Clothes Never Fit Right?
The instinct is that something is wrong with how you are shaped. The evidence points somewhere else: the labels themselves disagree.
Body Measurement Privacy: What Happens to Your Data?
A common misconception needs correcting first. Under GDPR Article 9, the prohibition on special-category data covers biometric data processed for the purpose of uni…
How Do Professional Tailors Take Body Measurements?
Professional anthropometry is defined in ISO 7250, Basic human body measurements for technological design, maintained by ISO technical committee TC 159/SC 3. It is…
Is There an App That Tells Me My Actual Size?
There is no such thing as “your actual size.” Size is not a property of your body. It is a label a brand attached to a garment, and two brands will atta…
How Do I Know My Real Clothing Size When Shopping Online?
Measure yourself properly, store those numbers, and treat every brand's chart as a translation layer that may be wrong. That is the whole method. Everything else is…
What Body Measurements Do I Actually Need?
If you record nothing else, record these. They cover the large majority of fit decisions across everyday clothing.
How Do I Use Body Measurements for Online Shopping?
Having numbers is not the same as using them. The value comes from a repeatable comparison process that accounts for three things: how the brand charts, how much ea…
Why Is Finding the Right Fit So Difficult Online?
The system is asking you to make a precise decision from imprecise information, then penalising you when you get it wrong.
Can AI Tell Me My Body Shape Type?
The Female Figure Identification Technique, or FFIT, developed at North Carolina State University, defines nine categories. Commercial women's systems typically use…
What's the Difference Between Scale Weight and Body Measurements?
Scale weight compresses an entire three-dimensional body into one scalar. It is genuinely useful for tracking trends, and genuinely useless for choosing clothes.
How Often Should I Get My Body Measurements Done?
No authority publishes a validated remeasurement interval for adult body measurements. Any source giving you a confident number, like every six months, is inventing…
Can I Use AI Instead of Visiting a Tailor?
Getting measured is not the same as being fitted. AI tools solve the first. A tailor solves the second. Confusing them is how people end up disappointed.
What Information Do Clothing Brands Need to Predict My Size?
A brand that manufactures a garment knows its finished chest, waist, hip and inseam to the millimetre. You do not. The listing gives you a size label and sometimes…
How Accurate Is AI Body Scanning Compared to Manual Measurement?
Comparing measurement methods without separating these produces confusing conclusions. One method is precise but biased. The other is consistent but subjective.
How Do I Get My Measurements Without Asking Someone to Help?
A circumference is not a straight distance. Finding the right landmark, holding the tape level, keeping it snug without pulling, and reading the number all happen a…
Do I Really Need to Visit a Fitting Room Anymore?
It depends entirely on what you are buying and how much you already know about the brand.
How Can Body Measurements Help Me Shop Faster?
Not on checkout. On uncertainty. The slow part of online clothing shopping is deciding whether to trust a label, and the fastest way to resolve it is to stop depend…
What Should I Wear When Getting AI Body Measurements?
Photo-based measurement works by inferring a 3D shape from a 2D image. Every layer of loose fabric adds a discrepancy between what the camera sees and what your bod…
Can AI Measurements Work for Plus-Size Clothing?
If a provider claims verified plus-size accuracy, ask for the study. There is no published subgroup accuracy benchmark for AI body measurement stratified by size, w…
Can AI Predict How Clothes Will Fit My Body Type?
To predict fit you need your measurements, the garment's finished measurements, and the ease built in. Retail currently supplies you with one, sometimes two, and ne…
What's the Easiest Way to Get Body Measurements at Home?
A few minutes in close-fitting clothing, even lighting, plain background. No tools, no helper, no remembering which number goes where.
How Do Body Measurement Apps Compare to Clothing Size Charts?
This comparison gets made constantly and it does not quite make sense, because the two answer different questions. A size chart is a marketing and grading artefact.…
Will AI Measurements Save Me Money on Returns?
You return a garment because you misjudged your size, or because the brand misdescribed the garment. Measurements fix the first. Nothing you do fixes the second.
How Do AI Body Scanners Work?
Most systems follow the same four-stage path, whether they use a phone camera or a calibrated multi-camera rig.
Can I Use Body Measurements to Shop Multiple Brands?
A size label is meaningless across brands. Measurements are not. Your waist is 78 cm whether you are buying from one label or another, and any brand chart can be co…
Why Don't Online Stores Use Body Measurement Technology Yet?
Measurement technology works today, and it is cheap. The obstacle is that retailers have decades of accumulated data in the wrong shape.
How Do I Know If an AI Measurement App Is Trustworthy?
Published smartphone app validation reports root-mean-square errors of 2.5 cm at the arm, 4.6 cm at the hip, 5.1 cm at the thigh and 6.1 cm at the waist.
What's the Fastest Way to Get Accurate Body Measurements?
A photo scan, in minutes, with no equipment. That is the fastest route to a complete set, and it is genuinely accurate enough for choosing between sizes.
Can Body Measurements Help Me Find Clothes That Actually Fit?
Measurements eliminate the question “am I a medium?” That question causes a large share of avoidable returns, and removing it is worthwhile.
How Many Photos Do I Need for Accurate AI Measurements?
A photograph is a 2D projection. Depth has to be inferred from shading, limb overlap and known proportions, and a single view leaves too much ambiguous.
Do AI Body Measurements Work for All Body Types?
There is no published benchmark for AI body measurement accuracy stratified by body size or shape. So claims in either direction are unproven.
Can I Use My Smartphone for Body Measurements?
Smartphone apps have been validated against tape measures. Reported root-mean-square errors are 2.5 cm at the arm, 4.6 cm at the hip, 5.1 cm at the thigh and 6.1 cm…
How Do Body Measurements Compare to Traditional Dress Sizes?
UK, US and EU sizing each use different increments and different reference bodies. Conversion charts exist, but they are approximations built on average figures, no…
What Can I Do With My Body Measurements Once I Have Them?
A measurement set you record once is a permanent asset. Each future purchase gets easier because you are not re-deriving your body every time.
Is AI Body Measurement Better Than Guessing My Size Online?
Reading a label, comparing it to your vague sense of your size, and estimating which of two options is less wrong. Every step is uncertain.
How Can Body Measurements Reduce My Shopping Frustration?
It is not one bad purchase. It is realising, after the fifth return in two months, that the problem is structural and you have no way out of it.
How Retailers Are Using AI Measurements to Cut Return Rates
US retailers processed $849.9 billion of returns in 2025 at a 15.8% return rate, per NRF and Happy Returns. The 2024 figure was 16.9% and $890 billion.
The Future of Online Clothing Shopping With Body Measurement
The scanning technology works today. The bigger constraint is that brands do not publish finished garment dimensions.
DIY Body Measurement Guide: Tape Measure vs AI Tools
This is the part most comparisons skip. The tape measure and the AI tool do not have more or less accuracy. They have different kinds of error.
Body Measurements vs Weight: Why You Need Both
Weight is a scalar. Measurements describe shape. Neither substitutes for the other, because they answer different questions.
How to Measure Yourself Accurately Without Help
For a circumference you must locate the landmark, hold the tape level, keep it snug without pulling, and read the number, all simultaneously. Any one of those going…
How to Read Clothing Size Charts When They Disagree
Most size charts describe the body a garment is intended to fit, not the garment itself. That single distinction explains most of the confusion.
The Hidden Cost of Clothing Returns
US retailers processed $849.9 billion of returns in 2025, a 15.8% return rate, per NRF and Happy Returns. The 2024 figure was 16.9% and $890 billion, up 21% on the…
Body Measurement Technology for Custom Clothing and Tailoring
Getting a complete, structured measurement set into a tailor's hands. The numbers are not the hard part. Transmitting a dozen measurements accurately by message, wi…
How Fashion Brands Are Changing Sizing With Measurement Data
Most sizing categories are inherited. The last comprehensive US anthropometric survey for apparel sizing was conducted in 1941 and does not describe modern bodies,…