Sandhya Garg — The Fit Atelier
How to Measure Yourself for a Dress:
The 4 Must-Know Body Measurements
Bust · Waist · Hips · Length · Video Tutorial · By Sandhya Garg, Project Runway Designer
Quick Answer
To find your dress size, you need four measurements: bust (around the fullest part of your chest), waist (around the narrowest point, roughly an inch above your navel), hips (around the fullest part, about 7–8 inches below the waist), and length (your height, which determines where hemlines actually fall on you). Use a soft measuring tape held snug but not tight, wear fitted clothing or underwear, and stand naturally. Match your numbers against the size chart — and if you fall between sizes, this guide covers exactly what to do.
Here is a secret from inside the industry: most fit problems are not fit problems at all — they are measurement problems. The dress was never the wrong size; the size was chosen from a guess. Four numbers, taken correctly in under five minutes with nothing but a soft tape measure, will tell you your true size in any dress you ever buy — and dramatically cut your odds of ever needing a return.
I trained in womenswear at London College of Fashion and pattern rooms including Alexander McQueen and Alice Temperley, and every garment I design starts from these same four measurements. Below is exactly how professionals take them — including the video where I demonstrate each one on a dress form — plus the size chart to convert your numbers, and what to do when you land between sizes.
In This Guide
Watch: Measuring Yourself at Home, Demonstrated
In this video I demonstrate all four measurements on a dress form — where exactly the tape sits, how snug to hold it, and the small mistakes that throw numbers off by an inch or more. All you need is a soft measuring tape, and a pen and paper. The same method works for women, men, and children.
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The 4 Measurements, Step by Step
Do’s and Don’ts of Measuring
✅ Do
- Use a soft fabric tape — never a metal construction tape
- Measure in fitted clothing or underwear
- Keep the tape level all the way around — check in a mirror
- Hold it snug but never tight: one finger should slip beneath
- Measure twice; trust the number that repeats
- Re-measure every 6–12 months — bodies change, and that is fine
❌ Don’t
- Measure over jeans, sweaters, or padded bras
- Suck in, hold your breath, or stand at attention
- Pull the tape tight to get a “better” number — the dress will tell the truth anyway
- Let the tape drift diagonally across your back
- Guess based on what size you wear in fast fashion — sizing varies wildly between brands
Now Convert Your Numbers: The Size Chart
With your four numbers written down, match them against the chart below. If your bust and hips land in different sizes — extremely common and completely normal — see the between-sizes guidance that follows.
The always-current version lives on our Size Chart page →
Between Sizes? Here Is Exactly What to Do
Rule 1 · Size to your largest measurement
If your bust says M but your hips say L, order the L. A dress can always be taken in at the waist by a tailor for a few dollars; it can rarely be let out. Fit the biggest number, tailor the rest.
Rule 2 · Let the silhouette do the work
Some designs are engineered to fit a range of bodies beautifully: wrap dresses adjust at the tie, kaftans flow over everything with grace, and A-line cuts skim rather than cling. If you sit between sizes, these silhouettes are your friends.
Rule 3 · Or skip the compromise entirely
Every piece in my boutique is available in custom sizing — made to your exact four measurements, the way clothing was always meant to fit. It is the reason this post exists: measure once, and nothing you order from us is ever the wrong size. Learn about custom-made →
Still unsure which size or silhouette to choose? Get personal style advice — tell me your measurements and the occasion, and I will point you to the right pieces myself.
Fit-Friendly Favourites · XS to 3XL · Custom Sizing Available
Silhouettes That Love Your Measurements
Four forgiving, figure-flattering designs — each also available made-to-measure from the numbers you just took.
All pieces XS · S · M · L · XL · XXL · XXXL · Custom sizing available · Free US shipping over $250
Frequently Asked Questions
What are the 4 body measurements for a dress?
Bust (around the fullest part of the chest), waist (the narrowest point of the torso, about an inch above the navel), hips (the fullest part of the hips and seat, 7–8 inches below the waist), and length (your height, which determines where hemlines fall). These four numbers are what every size chart — and every professional pattern — is built on.
How do I measure my dress size at home without help?
Use a soft measuring tape and a full-length mirror — the mirror substitutes for a second pair of eyes, letting you confirm the tape sits level around your back. Wear fitted clothing or underwear, stand naturally, and take each measurement twice. For the trickiest solo measurement (hips), turn sideways to the mirror to check the tape crosses the fullest point of your seat. The whole process takes under five minutes.
Should the measuring tape be tight or loose?
Snug but never tight: the tape should sit flat against your body all the way around, with just enough ease that one finger can slip beneath it. Pulling the tape tight gives you a smaller number and a dress that will not zip; holding it loose does the opposite. And measure while breathing normally — a measurement taken while holding your breath is one you cannot wear through a dinner.
What if my bust and hips are different sizes?
This is one of the most common fit situations and completely normal. The rule: size to your largest measurement, because taking a dress in is easy tailoring while letting one out is often impossible. Better still, choose silhouettes engineered for range — wrap dresses, kaftans, and A-line cuts — or order custom-made to your exact numbers, which removes the compromise entirely.
How often should I re-measure myself?
Every 6 to 12 months, and always before ordering for a major occasion. Bodies change through completely normal life — and a five-minute re-measure is far cheaper than a return. Keep your numbers in your phone notes with the date, and update them like you would a password: regularly and without drama.
More Style Resources
Reference
The Complete Size Chart
Every size, every measurement — the authoritative reference.
Made For You
Custom Made Clothing
Your four measurements, made into a dress that fits only you.
After the Fit
Garment Care Guide
Keep your perfectly fitted pieces beautiful for years.
Fit Guide
Plus Size Wedding Guest Dresses
Silhouettes and styling for sizes XL–3XL.
Styling
20 Ways to Style a Maxi Dress
Once the length is right, here is everything you can do with it.
One-on-One
Get Personal Style Advice
Send your measurements and occasion — get designer picks back.
Project Runway · London College of Fashion · Alexander McQueen Alumna
Four numbers. A lifetime of dresses that fit.
Sandhya Garg is a Los Angeles boutique creating limited-edition artisanal dresses in sizes XS–3XL — every piece also available custom-made to your exact measurements.
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