Last Updated: June 24, 2026
⚡ Key Takeaways
- Gather a few simple items so the process goes smoothly and your results stay consistent.
- Keep the tape snug against your body but never pulling tight enough to compress your skin.
- Fill in your own and keep it saved on your phone so it is always with you while shopping.
- Once you have your numbers, never assume a size based on the brand you usually wear.
Knowing how to measure for plus size clothing is the single most powerful thing you can do to shop with confidence and stop the cycle of disappointing online orders. Brands size their garments wildly differently, so the number on a label tells you far less than your own accurate measurements do. When you have a reliable set of numbers written down, every size chart becomes a tool that works for you instead of a guessing game. This guide walks you through exactly how to take each measurement, the small mistakes that throw the numbers off, and how to translate them into the right size on any retailer’s chart.
What You Need Before You Start
Gather a few simple items so the process goes smoothly and your results stay consistent.
- A soft, flexible fabric or vinyl measuring tape (not a metal construction tape)
- Form-fitting clothing or just your underwear and a well-fitting bra
- A full-length mirror
- A notebook or your phone’s notes app to record numbers
- Optional: a friend to help with hard-to-reach spots like your back-waist length
Measure over bare skin or thin clothing. Thick sweaters and shapewear add inches and skew everything. If you can, measure at the same time of day each time, since your body naturally changes slightly from morning to evening.
How to Take Your Core Measurements
Follow these steps in order. Keep the tape snug against your body but never pulling tight enough to compress your skin. The tape should sit level and parallel to the floor all the way around.
- Bust: Wrap the tape around the fullest part of your bust, usually right across the nipples, keeping it level across your back. Don’t flatten your chest; let it sit naturally.
- Waist: Find your natural waist, the narrowest part of your torso, usually about an inch above your belly button. Bend gently to one side and the crease that forms marks your natural waist. Measure there.
- Hips: Stand with your feet together and wrap the tape around the fullest part of your hips and rear, typically 7 to 9 inches below your natural waist. This is the measurement most often taken too high.
- High hip / tummy: Measure around the widest part of your upper hip and stomach, a few inches below the natural waist. Many plus-size bodies carry width here, and this number prevents pulling and gaping at the front of pants and skirts.
- Inseam: Measure from the very top of your inner thigh down to where you want a hem to fall. The easiest method is to measure a pair of pants that already fit you well, from crotch seam to hem.
- Thigh: Wrap the tape around the fullest part of one thigh. This matters for fitted pants and helps you avoid the dreaded tight-thigh, loose-waist problem.
Don’t Forget the Vertical Measurements
Width measurements get all the attention, but length determines whether a dress hits mid-thigh or mid-calf, and whether a top covers what you want covered. Record your back-waist length (from the most prominent bone at the base of your neck down to your natural waist) and your total height. When you shop for a flattering plus size skirt or a maxi dress, the listed garment length compared against your height tells you instantly where the hem will land.
A Sample Measurement Chart
Here is how a recorded set of measurements might look. Fill in your own and keep it saved on your phone so it is always with you while shopping.
| Measurement | Where to Measure | Your Number |
|---|---|---|
| Bust | Fullest part of chest | ____ in |
| Waist | Narrowest part of torso | ____ in |
| Hips | Fullest part of seat | ____ in |
| High hip | Widest part of tummy/upper hip | ____ in |
| Inseam | Inner thigh to hem | ____ in |
| Thigh | Fullest part of thigh | ____ in |
| Back-waist length | Nape to natural waist | ____ in |
Turning Measurements Into the Right Size
Once you have your numbers, never assume a size based on the brand you usually wear. Instead, open the specific retailer’s size chart and match each measurement.
- Always size up when between sizes, especially for woven, non-stretch fabrics. You can tailor down a slightly large garment far more easily than you can let one out.
- Size to your largest relevant measurement. For pants, that is usually hips or thigh; for dresses, often the bust or hips. Buy for the biggest number and adjust the rest.
- Read the fabric content. A garment with 5 percent or more elastane has real stretch and forgiveness. A 100 percent cotton or linen piece will not give, so honor the chart precisely.
- Check the measurement type. Some charts list body measurements (your size), others list flat garment measurements (the item laid flat). For garment measurements, you want a few inches of ease added on top of your body number for comfort.
Layering pieces like a plus size cardigan are more forgiving, but fitted items such as jeans and tailored dresses reward precise measuring every time.
Common Measuring Mistakes
Even careful people make these errors. Avoiding them keeps your numbers trustworthy.
- Pulling the tape too tight. Compressing your body gives a smaller number than your actual size, leading to clothes that don’t fit. Keep one finger of breathing room.
- Measuring over bulky clothes. Always measure on bare skin or thin layers.
- Holding your breath or sucking in. Breathe normally and stand relaxed in your natural posture.
- Letting the tape twist or sag in back. Use a mirror to confirm the tape is level all the way around.
- Measuring once and trusting it. Take each measurement twice. If the numbers differ, take a third and use the consistent value.
Keeping Your Measurements Useful
Taking accurate measurements is only valuable if you keep them current and at hand. Save your numbers in your phone’s notes app, in a shopping app, or even on a small card in your wallet so they travel with you. Date the entry so you know how recent it is, and set a reminder to re-measure every few months. When you find a garment that fits perfectly, jot down the brand, style, and size next to your measurements; this running record turns future shopping into a quick, confident process rather than a guessing game.
It is also worth measuring a few garments you already own and love. Lay a well-fitting pair of pants or a favorite dress flat and measure the waist, hips, and length, then compare those numbers to your body measurements. The difference between the two is the ease, or the comfortable room built into the garment, and learning your preferred ease helps you judge whether a new item will feel snug, relaxed, or just right before it ever arrives at your door.
Frequently Asked Questions
How often should I re-measure myself?
Re-measure every three to six months, or any time your weight, fitness routine, or body noticeably changes. Bodies shift naturally, and outdated measurements lead to ordering the wrong size. It only takes five minutes, so make it a seasonal habit before each major shopping trip.
Should I measure over a bra or without one?
Measure your bust wearing the everyday bra you will most often wear under your clothes. This gives the most realistic number for how garments will actually fit. For waist and hips, a bra makes no difference, so focus on thin or no clothing for those.
What if my measurements span two or three different sizes?
This is extremely common and completely normal. Buy for your largest measurement and plan to tailor the rest, or choose styles designed to skim rather than cling, like wrap dresses, A-line skirts, and elastic-waist pants that accommodate a range of proportions gracefully.
Can I measure myself accurately without help?
Yes. Bust, waist, hips, and high hip are all easy to do solo in front of a mirror. Only back-waist length and a true back measurement benefit from a second person. If you are alone, mark the tape position with your thumb and read it in the mirror.
Why do my measurements give me different sizes at different stores?
Because there is no universal sizing standard in the United States. Each brand sets its own size chart, and vanity sizing means a 16 at one store equals an 18 at another. This is exactly why your measurements, not your usual size, should guide every purchase.
Conclusion
Accurate measurements are the foundation of a wardrobe that fits and flatters. Spend ten minutes taking your bust, waist, hips, and length numbers, write them down, and bring them to every size chart you encounter. You will return far fewer items, feel more confident in what you order, and finally make online shopping work in your favor. Your body is worth dressing well, and it starts with knowing your numbers.
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