How to measure bra size

how to measure bra size

Not sure what your bra size is? Don’t worry because you’re not the only one that doesn’t know your bra size.

In this how-to guide article, you’ll learn how easy it is to find your correct bra size while using a tape measure.

This how-to-measure bra size guide is an easy step-by-step tutorial that you can do from home or anywhere you feel comfortable because it’s that simple.

What will you need:

How to start the measurement?

You can do the measurement naked or put on the best suitable bra that doesn’t have any padding to it so that you can get a more accurate bra size.

  • Band size – use to measure just below the bust.
  • Bust size – use to determine your cup size.

Step 1. Measure for your band size

Take the soft tape measure, wrap it around your back and underneath your bust. Be sure to have the tape measure parallel around your rib cage and pointing to the ground so that it can be level.

Now round the band measurement to the nearest inch and write it down.

Note: Make sure that the tape measure fits snugly around your rib cage and is not too tight.
USA Bra Band Size Chart

Step 2. Measure for your bust size

Now is to determine your cup size and how you’ll do it is pretty simple: Take the tape measure around the fullest part of your bust and make sure that it’s level suitably.

Round your bust size to the nearest inch and write it down.

Note: Be sure to have the tape measure fitting cozy and not too tight.
USA bra cup size chart

Step 3. Calculate Your Cup Size

The final step now is to determine your cup size, and this is where things can get tricky because bras are not universal where one size fits all. Bra sizes are vary depending on the brand.

This guide is to give you a more accurate measurement to determine your bra size on your own.

The most accurate way to calculate your cup size is to minus the band size from your bust size and use the equal number to find your cup size below on the bra size chart.

USA size chart

Band size – Bust size = Cup size

Bust Minus Band DifferenceCup Size
0AA CUP
1A CUP
2B CUP
3C CUP
4D CUP
5DD CUP
6DDD CUP
7G CUP
8H CUP
9I CUP
10J CUP
11K CUP
12L CUP
13M CUP
14N CUP
15O CUP

USA Band Size Chart

Underbust
(inches)
Band Size
27-2828
29-3030
31-3232
33-3434
35-3636
37-3838
39-4040
41-4242
43-4444
45-4646
47-4848
49-5050
51-5252
53-5454
Under Bust Measurement - Under Bust Measurement = Difference

International Size Chart

SizeUSAUKEuropeAustraliaItalyFranceJapan
0AAAAAA--AAA
1AAAAAAB
2BBBBBBC
3CCCCCCD
4DDDDDDE
5DDDDEDDDDEF
6DDDEFEEFG
7GFGFFGH
8HFFHFFFFHI
9IGIGGIJ
10JGGJGGGGJK
11KHKHHKL
12LHHLHHHHLM
13
MJMJJMN
14NJJNJJJJNO
15OKOKKOP
16PKKPKKKKPQ

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