Bra Fitting Guide: How to Measure Your Bra Size

How to Measure Your Bra Size

Getting the perfect fit starts with two simple measurements: underbust and bust. Follow this guide carefully to ensure accurate results.

Step 1: Measure Your Underbust (Band)

How to measure underbust - tape wrapped snugly under the bust
1
Place the tape under your bust
Wrap the measuring tape directly under your bust where your bra band normally sits.
2
Keep it level
Make sure the tape is straight and parallel to the floor all the way around.
3
Snug but comfortable
Pull the tape firmly so it feels secure, but not tight or painful.
Write down this measurement in centimeters. This determines your band size.

Step 2: Measure Your Bust (Cup)

How to measure bust - tape around the fullest part of the bust
1
Measure the fullest part
Wrap the tape around the fullest part of your bust, usually across the nipples.
2
Stand naturally
Relax your shoulders and avoid puffing your chest.
3
Keep the tape level
Ensure the tape stays horizontal around your back.
Write down this number in centimeters. This determines your cup size.

Common Measuring Mistakes

  • Measuring over a padded bra
  • Holding the tape too loose or too tight
  • Letting the tape slope up or down at the back
  • Taking measurements while bending forward

Next Step: Calculate Your Size

Now that you have your measurements, use our bra size calculator below to find your correct size in UK • US • CN formats.