Complete Guide To Measure Your Bust Size At Home

The wrong bra size doesn’t just affect how you look, but can also ruin your health. These step-by-step measuring instructions, which include how to determine the band size, how to measure your bust size and how to calculate your cup size, will ensure a perfect fit.


Do you have wrinkles in the cups? Do the underwire poke the sides of your breasts? Do you have cup spillage, slipping straps, or a bra that hikes up when you lift your arms? If you have answered “Yes” to any of these questions, it’s the high time you head to a professional bra fitter—or take out the measuring tape and follow the steps here. There are certain factors, such as weight gain or loss, a new exercise regimen, pregnancy, and a change of diet, which can cause a change in the bra size.


It can be measured effectively by following either of these two ways, either by being braless or wearing a non-padded bra. When you determine the band size, make sure that the measuring tape is leveled and is very snug. You have to measure around your rib cage, which is located just under the breasts where your bra band usually sits. The only thing to keep in mind is to pull the tape tight so that it sits against your rib cage. Round to the nearest whole number. If the number is even, add four inches. If it’s odd, add five. Your band size is the sum of this calculation. For instance, if you measured 32 inches, your band size is 36. If you measured 33 inches, your band size is 38.


To measure the bust accurately, you need to be wearing a bra. Pick a comfy one, but not the one that boosts your bust size. You are doing this to get the actual measure of your breasts, not the extra padding! Hence, wrap the measuring tape around the fullest part of your chest (at nipple level) but somewhat loosely. Thereafter round to the nearest whole number.


Now again use the measuring tape to measure loosely around the fullest part of your bust. Again, it’s important to keep the measuring tape level with the ground. Once you have that measurement, now subtract your band measurement from your cup measurement. The cup size is the difference between your band size and bust size. A standard chart is followed to understand size differences and how they equate to cup sizes:

  • 1-inch difference = Cup Size A
  • 2-inch difference = Cup Size B
  • 3-inch difference = Cup Size C>
  • 4-inch difference = Cup Size D
  • 5-inch difference = Cup Size DD

For example, if your bust size is 37 inches, then round down to the nearest even number, i.e. 38 inches, and if band size is 34 inches, then your cup size will be: 38 – 34 = 4 inches. That’s a 34D.

But How To Realize That Whether The Particular Style Fits You Or Not

• While slipping on the bra, one should always bend forward and then hook it. This ensures that your breasts are completely fit in the cups.

• The back of the bra should always be in level with the front, so always adjust the band. The hook portion and the center line should always be symmetrical.

• Always ensure that the bra is not too loose. One should always be able to slide only one finger underneath the band.

• Falling straps does not look good, irrespective of the age. Hence always first tighten the band and then shorten and fix the straps.

• If your breasts bulge, firstly, you are not wearing the correct size, and secondly, its highly recommended that you wear a close-fitting shirt over the bra.

• Before leaving, always look at yourself sideways in a mirror. The breasts should always sit midway between your shoulders and elbows. If not, purchase a better-fitting bra which is also supportive.

• Always look for a bra that fits perfectly when secured on the outermost hook. Make the band taut by moving toward the tightest hook when the bra starts becoming loose over time.

It’s high time to have a look at what bra size you are wearing and undergo a change, by following these tips. Now, when you are aware as to how to measure your bust size, do your measurements to match up with what you’re wearing and to ensure a perfect fit.

Measure Your Bust Size