How to Measure for a Sports Bra (Complete Guide)

Finding the right sports bra is just as important as choosing the right workout gear or shoe especially if you want comfort, support, and peak performance. Whether you're doing yoga, lifting weights, or going for a run, an ill-fitting sports bra can lead to discomfort, poor posture, and even long-term breast strain. That’s why measuring yourself correctly is key.

In this guide, we’ll walk you through how to measure for a sports bra, what those measurements mean, and how to find the right support level for your body and activity type. We’ll also recommend some GliFit sports bras perfect for every shape and intensity level.

Step-by-Step: How to Measure for a Sports Bra

Here are the step by step guide on measuring for a sports bra:

Step 1: Measure Your Band Size (Underbust)

Take a soft measuring tape and wrap it snugly around your ribcage, directly under your bust. Make sure the tape is level and parallel to the ground.

• Round to the nearest whole number.
• If it’s an even number, that’s your band size.
• If it’s odd, round up to the next even number.

Example: If your underbust is 31 inches, your band size will be 32.

Step 2: Measure Your Bust Size (Fullest Part)

Next, measure around the fullest part of your bust, typically across the nipples. Keep the tape comfortably loose not too tight or too slack.

Tip: Do this in front of a mirror or ask someone to help you to get the most accurate number.

Step 3: Calculate Your Cup Size

Subtract your band size from your bust measurement:

• 1" = A cup
• 2" = B cup
• 3" = C cup
• 4" = D cup
• 5" = DD/E cup, and so on

Example: Bust = 36", Band = 32" → 36 - 32 = 4 → D cup
Your size = 32D

Tips for Choosing the Right Sports Bra

Now that you know your size, consider the support level based on your activity: