How to Measure Your Bra Size at Home (Without Guesswork!)

How to Measure Your Bra Size at Home (Without Guesswork!)

Amanda Henson

"80% of Women are wearing the wrong size bra!". A common quote but no real solution until now.

For years, you’ve struggled with bras that don’t fit right or fall apart too soon. Every brand has a different size chart, and getting measured feels awkward and uncomfortable. You don’t like bra fittings—we don’t either.

You’ve said it loud and clear: you’re tired of strangers measuring you. You’re fed up with inaccurate sizing. So are we. That’s why we created an easy-to-use measuring guide and kit, so you can find your perfect fit at home. No more awkward fittings or bad measurements. Follow this simple step-by-step guide and measure yourself with confidence!

Step 1: Gather Your Tools

What you’ll need:

  • A soft measuring tape (or a string and a ruler if you don’t have one)

Do you need one? Grab a professional measuring kit here.

  • A mirror to help you see what you’re doing, 
  • Wear a non-padded bra or no bra for the best results. 

Step 2: Measure Your Band Size

Full bust woman using a soft measuring tape around her ribcage to measure her band size, demonstrating the process of bra measuring for an accurate fit.

  • Wrap the measuring tape around your ribcage, right under your bust. Breathe normal while measuring to avoid pulling the tape too tight.
  • Make sure the tape is snug, even, and parallel to the floor. A tilted tape can lead to incorrect measurements.
  • Write down the measurement in inches. If it’s an odd number, round down to the nearest even number. (For Example, Round 31.5 inches to 32 inches.)
  • Always take the measurement twice to ensure accuracy. If the results differ, take a third measurement and use the average.

Step 3: Measure Your Bust Size

Full bust woman using a soft measuring tape to measure the fullest part of her bust, demonstrating the proper technique for bra measuring to ensure an accurate fit.

  • Wrap the measuring tape around the fullest part of your bust, usually across the nipples.
  • Lean forward to allow all the weight to pull towards the floor.
  • ProTip: Taking measurements while you inhale can expand your ribcage and skew the bust measurement. Breathe normal and measure on an exhale.

Step 4: Calculate Your Cup Size

  • Subtract your band size from your bust size.
  • Use this chart to find your cup size (starting at DD)

Chart showing the difference between band and bust sizes for bra measuring, with the x-axis ranging from 5-13 and the y-axis from DD to M, illustrating how band and bust measurements relate to proper bra fitting.

Example Calculation:

34 Band Size

39 Bust Size

39 - 34 = 5 inches —> Cup Size DD/E

Final bra size: 34DD/E

Step 5: Check the Fit

Image illustrating the anatomy of a bra with key fit tips for full bust women, highlighting areas like the band, cups, straps, and gore, emphasizing the importance of bra measuring for achieving the best fit and support.

Tip: If you’re between sizes, try sister sizing (i.e., if 34DD feels tight, try 36D)

Common Bra Measuring Mistakes to Avoid

❌ Wearing a push-up or padded bra while measuring.

❌ Pulling the measuring tape too tight or too loose.

❌ Only measuring once – always double-check

❌ Ignoring weight changes that affect fit.

Next Steps: Get Your Perfect Fit!


💬 Did you find this guide helpful? Share your experience in the comments!

👙 Ready for a better fit? Explore our best-selling full-bust bras here.

 

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