How to Measure Your Body for Shapewear (Bust, Waist & Hips)
To measure for shapewear, take four numbers with a soft tape measure held snug but not tight: your bust (fullest point), underbust (just below the breasts), natural waist (the narrowest part of your torso), and hips (the fullest part of your seat). Then match those numbers to the size chart on the exact product you want, and if you fall between two sizes, size up. That is the whole process, and the rest of this guide shows you precisely where to place the tape so your numbers are accurate.
Why Getting Your Measurements Right Matters
Shop: Floxyluxe Body Measuring Tape →Here is the most common shapewear mistake: ordering by your dress size or by guessing. Shapewear is engineered compression, so a piece that is even one size too small does the opposite of what you want. Instead of smoothing, a too-tight shaper digs in and pushes flesh out at the edges, creating visible rolls at the thighs, armholes, and bustline. A piece that is too large simply does not hold anything in.
A clothing label cannot tell you any of this. Two pieces labelled "M" from two different brands can fit completely differently because each is built to its own size chart. The only reliable starting point is your actual body measurements, taken correctly. Five minutes with a tape measure saves you a return, a reorder, and the frustration of a shaper that never gets worn.
What You Need Before You Start
You only need a few things to measure accurately:
- A soft, flexible measuring tape. A flexible cloth or silicone tape wraps to your body's curves; a stiff hardware tape cannot. The FloxyLuxe Body Measuring Tape is made for exactly this and lives in our accessories collection alongside the rest of your fit essentials.
- A mirror, ideally full-length, so you can check the tape stays level all the way around.
- Light or no clothing. Measure on bare skin or over thin underwear. Bulky clothing adds inches and throws off your numbers.
- A note on your phone to write each number down as you go.
A quick tip: measure at the end of the day when your body has settled, and if you are buying a bodysuit or bra-style shaper, wear the bra you plan to use it with.
Step-by-Step: How to Measure for Shapewear
Stand tall, relax, and breathe normally. Do not suck in your stomach or puff out your chest, and never hold your breath. You want your real, relaxed measurements, because that is how you will be sitting, standing, and moving while wearing the piece.
Step 1: Measure Your Bust
Wear a non-padded or lightly lined bra that fits you well. Wrap the tape around the fullest part of your bust, usually right across the nipple line. Keep the tape level across your back, so it does not ride up or sag. Let your arms rest down at your sides, then record the number. Pull the tape snug enough to stay in place but loose enough that it is not compressing the breast tissue.
Step 2: Measure Your Underbust
Move the tape to directly underneath your breasts, where the band of a bra sits, against your ribcage. Keep it firm and level all the way around. This number matters for bodysuits, bras, and bust-supporting shapers, and it helps you choose between two sizes when your bust and waist point in different directions.
Step 3: Measure Your Natural Waist
Your natural waist is the narrowest part of your torso, which sits above your belly button and below your ribcage. It is usually higher than where you wear your jeans. Bend gently to one side to find the natural crease, then straighten up. Wrap the tape around that narrowest point, keeping it level and parallel to the floor. Relax your stomach completely before you read the number. This is the single most important measurement for waist trainers and waist-focused shapers.
Step 4: Measure Your Hips
Stand with your feet together. Find the fullest part of your hips and seat, which is often several inches below your natural waist, not at your hip bones. Wrap the tape around that fullest point, check in the mirror that it is level front to back, and record it. This measurement drives the fit of full-body shapers, shorts, and high-waist pieces.
Tape Tips That Keep Your Numbers Honest
- Snug, not tight. The tape should sit flat against your skin with no gap and no indentation. If it leaves a mark, it is too tight.
- Always level. A tape that tilts even slightly adds inches. Use the mirror to check the back.
- Measure each spot twice. If the two readings differ, take it a third time and use the consistent number.
- Stay relaxed. Holding your breath or tensing your core shrinks your numbers and leads you to a size that will not fit when you exhale.
How to Read a Shapewear Size Chart
Once you have your four numbers, ignore generic XS-to-XL labels and go straight to the size chart on the specific product page. Sizing varies between every style and every brand, so the chart on the piece you are buying is the only one that counts. You will find the size guide on each product across our body shaper collection.
A size chart lists each size (S, M, L, and so on) against a range of measurements for the body areas that matter for that garment. To use it:
- Find the column that applies to your piece. A waist trainer is read mainly off your waist. A full bodysuit is read off your bust, waist, and hips together.
- Locate which size range your measurement falls into for each relevant area.
- If all your measurements land in the same size, that is your size.
We never publish one-size-fits-all numbers in our guides for a reason: the right figures live on the product itself, where they are matched to that garment's fabric, cut, and compression level.
What to Do When You Are Between Sizes
It is normal for your measurements to land in two different sizes, especially if your bust, waist, and hips do not all match one column. Here is how to decide:
- When in doubt, size up. A too-small shaper compresses unevenly and creates the very bulges you are trying to smooth. The larger size will still shape you and will be far more comfortable to wear all day.
- Prioritise by garment type. For a waist trainer or waist cincher, follow your waist. For high-waist shorts or a full-body shaper, follow your hips and waist together. For a bodysuit or bra-style top, follow your bust and waist.
- Match the size to your goal. If you want all-day comfort, size up. If you want firmer hold for a few hours and your measurements are right at the top of a range, the snugger size may suit you, but never go below your true measurement.
Common Measuring Mistakes to Avoid
- Ordering by your dress size. Clothing sizes and shapewear sizes are not the same. Always use real measurements.
- Sucking in or holding your breath. This gives you a number you cannot actually wear.
- Measuring over thick clothing. It adds inches and inflates your size.
- Letting the tape tilt or sag. An uneven tape is an inaccurate tape.
- Pulling the tape too tight. Compressing the tape into your skin gives a false, smaller number and leads to a shaper that is too small.
- Using one brand's chart for another piece. Check the chart on the exact product, every time.
Frequently Asked Questions
What measurements do I need to buy shapewear?
For most shapewear you need four: bust, underbust, natural waist, and hips. Waist-focused pieces rely mainly on your waist, full-body pieces on your waist and hips, and bodysuits on your bust and waist. Take all four so you can read any product's chart confidently.
Should I size up or down in shapewear if I'm between sizes?
Size up. Shapewear that is too small compresses unevenly and creates bulges at the edges instead of smoothing them. The larger size shapes you comfortably and is the one you will actually keep wearing.
Where exactly is my natural waist?
Your natural waist is the narrowest part of your torso, above your belly button and below your ribcage, usually higher than your jeans waistband. Bend to one side to find the natural crease, then measure there while standing straight and relaxed.
Can I use any tape measure to measure for shapewear?
Use a soft, flexible measuring tape, not a rigid hardware tape, so it follows your body's curves. A flexible cloth or silicone tape like the FloxyLuxe Body Measuring Tape gives you the accurate, repeatable numbers a size chart needs.
Is shapewear sizing the same as my clothing size?
No. Shapewear sizing is based on body measurements and compression, and it varies between styles and brands. Always measure yourself and match those numbers to the size chart on the specific product page rather than ordering by your usual clothing size.
Ready to Find Your Fit
Accurate measurements are the difference between shapewear you love and shapewear you return. Grab a soft tape, take your four numbers, and match them to the chart on the piece you want. Start with the FloxyLuxe Body Measuring Tape from our accessories collection, then explore the body shaper collection to find the right style for your shape and your goal.
