How to Measure a Shaping Swimsuit: Your Ultimate Guide

Whether you’re lounging by the pool, enjoying a day at the beach, or simply soaking up the sun at your favorite summer gathering, the right shaping swimsuit can help you feel confident and comfortable. In this detailed guide, we’ll walk you through how to measure a bikini top, how to measure bikini bottoms, and how to measure one-piece swimwear, with helpful tips to ensure you get the best fit for every occasion.

Is Your Underwear Size the Same as Your Swimwear Size?

Swimwear generally fits differently from everyday underwear. While your underwear size may give you a rough idea, swimwear is often made from fabrics that are designed to stretch and provide support in the water, which can make sizing a bit more flexible.

When measuring for swimwear, always focus on your body measurements (bust, waist, and hips) instead of relying solely on your underwear size.

We know swimsuit shopping can be tricky for curvy women— here are 5 Swimsuit Struggles Curvy Women Face (And How to Solve Them) to help make the process easier!

How to Measure a Bikini Top for a Perfect Fit

When it comes to bikini tops, getting the right fit is crucial for both support and comfort. Follow these steps to get the perfect bikini top measurement:

Step 1: Measure Your Band Size
Wrap a measuring tape around your ribcage, just under your bust. The tape should be snug but not tight. This measurement gives you your band size.

Step 2: Measure Your Bust
Measure around the fullest part of your bust, making sure the tape stays comfortably snug but not tight. Keep the tape parallel to the floor and straight across your back.

Step 3: Determine Your Cup Size
To determine your cup size, subtract your band measurement from your bust measurement. The difference corresponds to your cup size (e.g., 1 inch = A cup, 2 inches = B cup, etc.).

Be sure to check out our tutorial video for a step-by-step process on how to measure your bikini top!


How to Measure Bikini Bottoms for Comfortable Shaping

Bikini bottoms come in many cuts, from high-waisted to low-rise. Accurate measurements are key to finding the right fit. Here’s how to measure:

Step 1: Measure Your Waist
Use a measuring tape to measure around the narrowest part of your waist, which is typically just above your belly button.

Step 2: Measure Your Hips
Measure around the fullest part of your hips and buttocks, keeping the tape parallel to the floor for an accurate fit.

Step 3: Check the Fit
The bikini bottom should fit snugly around your hips and waist without digging in. Be sure to check the fit with different styles, such as high-waisted or mid-rise.

Follow our detailed video tutorial to see how to do it properly!


How to Measure One-Piece Swimwear for a Sleek Fit

Step 1: Measure Your Bust
Measure around the fullest part of your bust, ensuring the tape is snug but not tight.

Step 2: Measure Your Waist
Measure around the narrowest part of your waist, typically above your belly button.

Step 3: Measure Your Hips
Measure the fullest part of your hips and buttocks to ensure the suit fits properly.

Step 4: Measure the Length
From the shoulder to the crotch, measure the length of the swimsuit. Make sure it’s long enough to fit comfortably, but not so long that it bunches up.

Check out our video for a visual guide on how to measure one-piece swimwear for a flawless fit!


How to Choose the Right Shaping Swimwear for Your Body Type

Choosing the right shaping swimwear is all about feeling confident, comfortable, and embracing your unique shape. Every body is beautiful, and the right swimsuit can enhance your natural beauty. Here are some recommendations for finding the perfect fit based on your body type, with features that highlight your best assets:

Swimwear for Hourglass Body Shape

For an hourglass figure, swimsuits that provide a natural, balanced look are a great choice. Styles that follow your body’s natural curves and offer a sleek silhouette work well for this shape.

  • Clean lines: Opt for swimsuits with clean lines that follow your natural shape without adding extra volume. 


  • Belted or Cinched Waist: A subtle tie belt or cinching can enhance the natural proportions of your hourglass shape.

Swimwear for Apple Body Shape

For apple body types, swimwear with built-in structure and support works well to create a smooth, balanced silhouette. Focus on styles that provide support where needed.

  • Halter Tops: Tops with built-in support and halter design can enhance your shape, flattering your shoulders and arms.


  • Ruched or Draped Designs: Light ruching or draping around the midsection can offer a smooth appearance and a flattering fit.


  • Knot-Front Dresses: Dresses with a knot front can visually elongate your torso and highlight your waist for a flattering look.

Swimwear for Pear Body Shape

For pear body types, swimwear that provides balance and proportion is key. Look for styles that complement the upper and lower body, creating a harmonious look.

Recommended Styles:

  • A-Line or Skirted Bottoms: Swimsuits with A-line or skirted bottoms provide added coverage and a flattering fit.


  • V-Neckline Tops: A V-neckline or asymmetrical design can add visual interest to the upper body.


  • Ruffled Tops: Tops with a ruffled design balance your silhouette visually, adding a bit of volume to the upper part of your body for a balanced, enhanced look.

Looking for more swimwear ideas? Check out these Tips to Find the Best Swimsuit for Your Body Type.

Does Shaping Swimwear Really Work?

Shaping swimwear can make a noticeable difference! It helps smooth curves, offers tummy control, and enhances your natural shape. Look for suits made with materials that provide compression or shaping technology for a flattering fit. While it doesn’t offer strong sculpting support, the light compression is comfortable enough to wear all day at the beach or poolside, so you can enjoy yourself without feeling restricted.

Common Questions About Shaping Swimwear

Q: How tight should a shaping swimsuit be?
A shaping swimsuit should fit snugly to provide support but not be uncomfortably tight. It should feel like a second skin, offering control without restricting movement.

Q: Can I wear shaping swimwear for swimming?
Absolutely! Shaping swimwear is designed for both comfort and performance. You can enjoy swimming, lounging, or beach activities while still benefiting from the shaping effect.

Q: How do I care for my shaping swimwear?
To keep your swimwear in great shape, always follow care instructions. Rinse your swimsuit with cold water after each use and hand wash with mild detergent. Avoid wringing out or twisting the fabric to maintain its elasticity.

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Now that you know how to measure bikini tops, how to measure bikini bottoms, and how to measure one-piece swimwear, you’re all set to shop for the perfect swimsuit that enhances your shape and fits like a glove. 

Ready to find your perfect shaping swimsuit? Explore our full collection for styles that fit, flatter, and shape every body.

Are you looking for the perfect shapewear for summer, too? Learn how to build a versatile summer wardrobe here!