Maternity Clothes Size Chart And Sizing Guide

Maternity outfits sizes are the same as regular ones, which means you’ll be a maternity medium if you regularly wear a size medium.

It doesn’t imply your waist is still the same while you’re pregnant, but clothing businesses maintain the sizing consistent to make maternity clothes purchasing easier.  Of course, your body will undergo some changes. Learn all about body sizes and their effect on size charts here

Also, plus-size maternity outfits have the exact sizing as regular maternity outfits. However, plus-size garment sizing varies by shop, like all fashion, so take your measurements and check the maternity clothes chart before purchasing. 

Maternity Clothes Size Chart

When shopping for your cute maternity clothes, it is vital to use a size chart and similar size guides (maternity size charts). A professional maternity clothes chart will assist you to get your ideal maternity clothes sizes. It also aids in providing accurate hip, waist, regular size, cup size, and bust size measurements among others. 

Here is a general maternity clothes chart for reference. Each manufacturer will have their custom charts based on their designs, so please use the manufacturer’s chart at the time of shopping. 

XS2-434-36628-3071 – 7634 – 3686 – 9137 – 3993 – 99
S4-636-38830-3276 – 8136 – 3891- 9639 – 4199 – 104
M8-1038-401032-3481 – 8638 – 4097 – 10241- 43104- 109
L12-1440-421234-3686 – 9140 – 42102 – 10743 – 45109 – 114
XL14-1642-441436-3891- 9642 – 44107 – 11245 – 47114 – 119

Tops and Bottoms Charts

Size (pre-pregnancy)
Shirts & TopsPants & BottomsMaternity Size
XS (0-2)34-3586-8936-3791-94XS
S (4-6)36-3791-9438-3997-99S
M (8-10)38-3997-9940-41102-109M
L (12-14)40-41102-10442-43107-109L
XL (16-18)42-43107-10945-46114-1117XL
1X  (18-20)45-46114-11748-49122-1241X
2X (22-24)47-48119-12250-51127-1302X
3XL (26-28)49-50124-12752-53132-1353X

Body Measurements 

It’s critical to know what to measure and measure correctly before purchasing any maternity clothing. A tape measure is the most common tool for taking measurements regardless of the product type or maternity items. From maternity coats to maternity pants, a tape measure is the most prominent tool for clothing measurements.  

Here is a brief demonstration of how you can go about finding your current measurements and determining your maternity clothes sizing across different types of maternity wear. A complete expert guide on how to measure your body for clothing size you can read here

For maternity bras (maternity bra sizing):

The bust area is the most important measurement you need for bras, and here is how to do it;

Bust measurement

Measure across the widest circumference of your bust, beneath your arms.


Measure your chest below your breasts (bra-line) 

For tops

You certainly want very nice fitting tops and it takes getting the measurements right. here is how to go about it;


Measure from the broadest point on one shoulder to the widest point on the other.


Measure across the widest circumference of your bust beneath your arms. For underbust, please measure your chest below your breasts. 

For dresses

Dresses are some of the most important maternity wear. Here s a quick guide on taking measurements for dresses;


Measure from the broadest point on one shoulder to the widest point on the other.


Measure across the widest circumference of your bust beneath your arms. For underbust, please measure your chest below your breasts.


Measure the most expansive area of your hips.


Measure the most expansive area of your thigh.

For pants

Pants are equally essential, please use the below steps to take measurements;

Hip measurement

Measure the broadest area of your hips.

Waist measurement

Measure the widest part of your baby bump.

High Waist

Take the body circumference measurement above the bump.

Low Waist

Measure the body circumference below the bump.


Measure the most expansive area of your thigh.


Measure the length from the top of your inner thigh to the bottom of your ankle

When is the Right Time to Shop for Maternity Clothes? 

Women expecting their first child are generally ready to start wearing maternity clothes at around sixteen – twenty weeks in the second trimester. However, everyone is different, and there is a range of circumstances that might influence when you will need to purchase maternity clothing. 

While some women experience stretching and extra weight immediately, others are fortunate enough to wear their usual clothes for extended periods. 

Therefore, there is no mandatory moment when you should start wearing maternity clothes throughout your pregnancy. When you feel uncomfortable in your regular attire, it’s time to shop for something new. 

Signs that it’s time to buy maternity clothes

Here are a couple of signs to look out for: 

  • Your trousers won’t button: Even if this is your first pregnancy, your pants may begin to feel uncomfortable quite early on. It’s time to put your pre-pregnancy pants away when they become uncomfortable.  While pregnancy is a precious miracle, it also comes with its share of discomforts, and there’s no reason to add to those discomforts by wearing jeans that no longer fit. 
  • Your belly protrudes from behind your shirt: It’s probably time to invest in some maternity clothes if your stomach is popping out from under your shirt. 
  • Your bra is too tight for you: A correctly fitting bra is necessary for comfort and breast health. Consider purchasing a pregnancy or nursing bra if your current bras are too tight. 

In most cases, you’ll need to move to maternity clothing sooner in your second and subsequent pregnancies. This is because your abdominal muscles have already been stretched at least once, causing your baby bulge to appear earlier.  You may require maternity clothes towards the middle and end of your first trimester, about 8-12 weeks, with your second pregnancy.  

Common Types of Maternity Clothes

There are many stylish maternity outfits on the market today. During your pregnancy, keep in mind the weather and the changing seasons. 

Here are a few suggestions; 

Maxi skirts and dresses

These types of maternity clothes are roomier than most other designs, usually giving adequate covering. They’re airy and adaptable, making them ideal for the summer. Some may even have a breastfeeding-friendly top section to make things easier for you when the baby arrives.

Maternity Flowy shirts

Most maternity clothes are already on the loose side around the belly. Investing in a few simple pieces, such as black, white, and grey will allow you to wear them with various outfits. They’ll usually feature an empire waist to give them form and enhance your expanding baby belly.

Maternity Leggings

Leggings are popular for being pretty comfy. You may wear them with a dress or beneath a long, flowing T-shirt and be warm in no time. For extra support, most pregnancy leggings will have a high waist. 

Maternity jeans

Some maternity jeans have a belly band, while others have elastic panels on the sides. Both are useful, but those with flexible sides are more modest and may be used after your kid is born. 

Maternity Tank Tops

Conclusion on maternity clothes size charts

Planning when, where, and how to buy your maternity wear is essential. Putting together your new maternity wardrobe should indeed be a pleasurable and stress-free experience. 

While there is no one-size-fits-all solution for when you’ll need to transition to maternity wear, planning out what you’ll need and how you’ll put it all together is a beautiful place to start when it comes to being ready to shop for maternity clothes. In the meantime, a belly band and other loose-fitting shirts can do the trick! 

Please ask any questions you might have, and also, it would be nice to hear about your pregnancy experiences.

Pictures in this maternity clothing size post by Nicole Herrero on Unsplash

Related maternity and nursing size charts