Bra Size Calculator
Welcome to the Bra Size Calculator

COMPLETE OUR BRA SIZE CALCULATOR TO FIND THE RIGHT BRA FOR YOU.

What you’ll need:

  • To wear your best-fitting non-padded bra, ideally less than a year old
  • A fabric or paper tape measure
  • A large mirror to check that your bra fits correctly
Get Started
  • 1Underband measurement
  • 2Bra size
  • 3Underband
  • 4Alignment
  • 5Sides
  • 6Cups
  • 7Wires
  • 8Center
  • 9Straps
  • 9

HERE'S HOW TO TAKE AN

ACCURATE MEASUREMENT

  • Wrap the tape measure firmly around your underbust
  • Pull it so that it feels snug, but not so tight that it causes discomfort
  • If you measure in-between sizes, round down to the nearest number

Enter underband size here:

Please enter a valid underband size.
Next

REMEMBER...

  • Always measure in inches
  • Wear nothing but your bra from the waist up

Complete our Bra Size Calculator to find the right bra for you.

  • 1Underband measurement
  • 2Bra size
  • 3Underband
  • 4Alignment
  • 5Sides
  • 6Cups
  • 7Wires
  • 8Center
  • 9Straps
  • 9steps

Enter your current bra size

Please enter the bra size you currently have on, as this is taken into consideration when we suggest the bra size you should be wearing.

Next

Complete our Bra Size Calculator to find the right bra for you.

  • 1Underband measurement
  • 2Bra size
  • 3Underband
  • 4Alignment
  • 5Sides
  • 6Cups
  • 7Wires
  • 8Center
  • 9Straps
  • 9steps

HOW DOES YOUR BAND FEEL?

MAKERS ADVICE: Your underband should feel firm but comfortable. When new, fasten it on the loosest hook. This will allow room for tightening as the bra stretches over time.

Next

Complete our Bra Size Calculator to find the right bra for you.

  • 1Underband measurement
  • 2Bra size
  • 3Underband
  • 4Alignment
  • 5Sides
  • 6Cups
  • 7Wires
  • 8Center
  • 9Straps
  • 9steps

HOW IS YOUR BRA ALIGNMENT?

MAKERS ADVICE: The back of your bra should be level with the front. When your bra’s underband is in line with the front, it will give you optimum support and comfort.

Next

Complete our Bra Size Calculator to find the right bra for you.

  • 1Underband measurement
  • 2Bra size
  • 3Underband
  • 4Alignment
  • 5Sides
  • 6Cups
  • 7Wires
  • 8Center
  • 9Straps
  • 9steps

How do the sides of your bra feel?

MAKERS ADVICE: The sides of your bra should sit in a comfortable position. If they’re too high under your arms, they’ll rub and cause discomfort.

Next

Complete our Bra Size Calculator to find the right bra for you.

  • 1Underband measurement
  • 2Bra size
  • 3Underband
  • 4Alignment
  • 5Sides
  • 6Cups
  • 7Wires
  • 8Center
  • 9Straps
  • 9steps

How do your cups feel?

MAKERS ADVICE: Your breasts should be fully contained within your bra’s cups, with no excess flesh coming over the top.

Next

Complete our Bra Size Calculator to find the right bra for you.

  • 1Underband measurement
  • 2Bra size
  • 3Underband
  • 4Alignment
  • 5Sides
  • 6Cups
  • 7Wires
  • 8Center
  • 9Straps
  • 9steps

HOW DOES THE WIRE FEEL?

MAKERS ADVICE: The underwire should lie flat against your body, and go around the entire contour of the breast.

Next

Complete our Bra Size Calculator to find the right bra for you.

  • 1Underband measurement
  • 2Bra size
  • 3Underband
  • 4Alignment
  • 5Sides
  • 6Cups
  • 7Wires
  • 8Center
  • 9Straps
  • 9steps

HOW DOES THE CENTER PANEL SIT?

MAKERS ADVICE: The center front of your bra should lie flat against your body. Triumph’s award-winning Magic Wire is an exception to this rule, as the center panel is not designed to lie flat against your body.

Next

Complete our Bra Size Calculator to find the right bra for you.

  • 1Underband measurement
  • 2Bra size
  • 3Underband
  • 4Alignment
  • 5Sides
  • 6Cups
  • 7Wires
  • 8Center
  • 9Straps
  • 9steps

HOW DO THE STRAPS SIT?

MAKERS ADVICE: Only adjust your straps so that your breasts sit in their natural position – usually about halfway between shoulder and elbow. Our new Magic Boost bra features innovative straps – the front part of the strap is non-stretch, so straps stay in place and offer perfect support.

Next

YOUR RESULTS

You are wearing the right sized bra!

It looks like you’re wearing a bra that is uncomfortable, or doesn’t fit as well as it should. We recommend….

It seems that you're wearing a correctly fitting bra, but there is a difference between the size you measured and the bra you are wearing. Therefore we suggest you go in-store to get professionally fitted.

We want to give you an insider tip, no two bras fit alike. You may need to go down an underband size and increase a cup size if the bra is made of particularly stretchy material, alternatively you may need to go up an underband size and down a cup size if the bra fits a little small. Therefore, it’s good to know what your sister sizes are, we have calculated these for you:

We want to give you an insider tip, no two bras fit alike. You may need to go down an underband size and increase a cup size if the bra is made of particularly stretchy material, alternatively you may need to go up an underband size and down a cup size if the bra fits a little small. Therefore, it’s good to know what your sister sizes are, we have calculated these for you:

Unfortunately we are unable to recommend a bra size based on the information you have provided. We therefore recommend you come in-store for a fitting. One of our fit experts will measure you, and then guide you to the bra styles and shapes best suited to you.

  • Sister size down
  • Sister size up