Measure for band size by snugly fitting a flexible tape measure around your chest directly under the bust. Make sure that the tape is parallel to the ground or floor when measuring. Round up to nearest whole number.
This is your band size.
Measure for cup size by placing the loose end of the tape measure directly on your sternum and stretching it across to your nipple.
Make sure that you have a bit of space between where the tip of your index finger ends and where the top of the tape measure ends.
Keep in mind that this should be held tautly across your chest, but not so tight that it restricts your breathing.
This is your cup size.
Remember that there are exceptions to every rule, so if you fall between band sizes or cup sizes, it’s always best to go with the larger size. Also be aware that some brands may have differing measurements for their cups and bands.
Example: The band on a 34B bra might fit as a 32C, or the cups on that same bra may be more like an A cup rather than B. It’s best to try on bras to get an accurate idea of what size you are wearing.
If you’re having trouble finding your true bra size, don’t be discouraged. There are lots of ways to find your size – it just takes a little trial and error sometimes.
The best way is to try on different sizes in store, but if you’re not able to do that or don’t have access to a retailer with a big selection, check out the how-to video tutorials for tips and tricks.
So this is how to measure Bra size.