Swimsuit size Chart And Sizing Guide

There’s no more ideal time to go to the beach than during the summer. It is also suitable for many ladies to soak in the sun’s rays while rejuvenating by the waves and splashes of cool water. As a result, it’s only natural that many people look for new swimsuits that look beautiful and fit correctly. So use a swimsuit size chart to help you get a well-fitting swimsuit. 

A swimsuit is an outfit worn by women and girls when swimming. However, swimming for enjoyment was not widespread in Ancient Rome thousands of years ago. 

Related: Bikini Size Chart and Sizing Guide, Women’s Underwear Size Chart and Sizing GuideBeach towel size chart for all occasions, couples, adults and kids,Pool size chart – what are the standard pool sizes by shape

Table of content

Swimsuit Chart

The swimsuit size chart is vital when shopping online. Shoppers use it as a size guide. However, remember that every brand is unique and frequently differ in terms of which size suits particular measurements. 

Use the swimsuit size in cm/inches chart below:

XL40-42 34-3642-44

Plus size swimsuit size chart

Plus Size ChartWaistBustHips

Different brands will have their custom size charts based on their designs. Here is an example from Arena (men and women charts): 

Women Swimsuit Chart


International Size Conversion

Use the conversion below to convert international swimsuit sizes across different regions;

US Size
Uk SizeEu/German SizeItaly SizeAU Size

To get a well-fitting swimsuit, match the swimsuit bottom sizes to your waist and hip measurements.  Most size charts are table-form, with the measurements on one side and example measurements on the other. Look for your dimensions in this size chart to get your ideal size. Compare the sizes of the swimsuit tops to your bust and torso measurements. 

Measuring Your Body to Find Accurate Measurements for Your Swimsuit

Related: a full review on how to measure your body for perfect fitting

Finding a swimsuit that fits you well might be challenging, especially if you purchase one online. To make things easier, take body measurements of your bust, waist, hips, and torso and compare them to a size chart to select the ideal swimsuit.  Please use a soft tape measure and keep the tape parallel to get accurate body measurements. 

The usual size concept (e.g international sizes) also applies to swimsuits. So if you are small size then size ‘S’ is for you. If your body is the large type, you will definitely go for a larger size. Swimsuits come in many styles including accented styles, swim dress styles, boy leg styles, etc. 

How to measure

The measuring tape should be as near your skin as possible while measuring your body so that you can be sure of the actual measurement. It’s recommended not to measure over heavy layers of clothes; instead, use light undergarments to get the most accurate results.  The most important and common sizes you want to get include bust (size bust or bust size), waist-hip size, band size (e.g 32-inch band size), bralette size, etc. 

Bust measurement

Wrap the tape measure around your bust’s broadest area and locate the portion of your chest that protrudes the most. Maintain a perfect line with your arms at your sides for more precise measurement. Please, make sure the tape measure is firm against your skin but not so tight that it digs into your body.


Measure just beneath your bust, parallel to the floor using the tape measure. This measurement will help you determine the swim top and bra band size. 

Waist measurements

To identify the natural crease in your waist, bend to one side. Underneath your ribs, find your natural waist. Feel around your torso for the bottom of your ribs. Placing your hands right below your bottom ribs and above your belly button is an excellent place to start. 

Wrap the tape measure over your waist and record the result. Look for the part of your torso that dips in on either side. Your waist measurement is highly significant if you’re shopping for a high-waisted bikini. 

Hip measurement

Wrap the tape measure around your hips. Then find the largest size point of your hips and measure it. You can place your hands at your pelvis on each side of your torso to find the area immediately above your rump to feel the hips. 

You may also use your fingers to feel your hip bones. On either side of your pelvis, they will feel like rounded, pointed bones. 

Torso measurement

Wrap the tape measure over your torso lengthwise to measure your upper body. This measurement is necessary for an accurate size measurement to check your upper section’s length. 

Wrap the tape measure vertically around your body, passing between your legs and over one shoulder before meeting the other end over your abdomen.  

How to use a swimsuit chart to determine the correct bikini sizes

Related: Bikini Size Chart and Sizing Guide

Bikini tops are typically sized using the same technique as bra sizes. Size labels are numbers and letters that match a specific cup size and underbust measurement. 

On the other hand, Bikini bottom sizes are often classified as standard or classic outfit sizes. Sizes are generally numerical and based on the hips and waist size. 

You should first take accurate chest measurements of (underbust and bust ), hip and waist circumferences, and then calculate your bra size to find the right bikini size. Make a list of your measurements in inches and centimeters. Then, using the size chart, figure out your US size. 

More About Swimsuit Chart and How to Measure Yourself for the Swimsuit explained (video)

How To Measure Yourself For The Best Swimsuit Fit by Lands’ End


Now that you know the importance of a swimsuit chart and how to take your body measurements, you’ll be able to find a swimsuit that compliments your figure. 

There’s nothing left except to go to the beach with your newfound self-confidence!  

Picture in this post by Content Pixie on Unsplash

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