You can also measure without a bra, but it may be slightly more challenging when things can move around.
Use the mirror to make sure the tape is exactly parallel to the floor. If the measuring tape is not in a straight line around your body and at an angle, you will not get an accurate measurement. [4] X Research source Don’t pull the tape so tight it’s like you are wearing a corset. Just make sure it is squeezing your body snugly. [5] X Research source If your measurement is a fraction (like 33 1/2 inches), round up to the nearest whole number (34 inches). [6] X Research source Band sizes are measured in even numbers, so if your measurement was odd, you may want to try one size up and one size down (if you measure 35 inches, try both the 34 and the 36 size bra), but round up for now. [7] X Research source
Because your cup size can fluctuate based on hormones and bloating, try to measure on a day when your breasts feel relatively normal. [9] X Research source If you are concerned about your posture (maybe you slouch), try bending forward at the hips to a 90 degree angle, or until your body forms an L shape. Then measure your bust from that position. [10] X Research source Don’t pull the tape tight like you did with your band measurement. As with the band measurement, round up to the nearest whole number if your measurement is a fraction. [11] X Research source Again, be certain the tape is straight across your back. The measuring tape should not angle up from your back toward your nipples. All women have one breast that is larger than the other, so be sure you are measuring to the fuller breast. [12] X Research source
Once you go above 5 inches (12. 7 cm), cup sizes will differ with each company. There should be a sizing chart on the company’s website and you can use your band and bust measurement to find which cup you want. [14] X Research source
If you need a larger band size, go down a cup size. So instead of 34B, you’ll want 36A. If you need a smaller band size, go up a cup size. Instead of 34B, go for 32C. It is more important to have an accurate band measurement than cup measurement. Going up or down a band size is a more significant change than going up or down a cup size. Get a comfortable band first and then fine tune with the cup size. [15] X Research source
If you have trouble hooking a bra behind your back, you can hook the bra at the front and then twist it around your waist so the hooks are at your spine.
Does the bra pinch your breasts or make it look like you have four boobs? Then it’s the wrong size. [20] X Research source Your nipples should be about halfway between your shoulder and elbow. [21] X Research source If your breasts are spilling out of the sides of your bra, you need a different size. [22] X Research source
Get refitted if your weight has fluctuated more than 10 pounds, you’ve had a baby, started exercising regularly, or have completed hormone therapy. [23] X Research source
Examine detailed fitting guides that recommend bras for many different shapes and types of breasts. They make suggestions for women with prominent breast bones, large areolas, distended stomachs, and more.
Check out a guide to the pros and cons of different bra styles, and on which bodies and breast shapes they work best. A seamless bra can be a great everyday bra to wear under T-shirt or with other form-fitting clothes, as it will be almost invisible underneath. [24] X Research source
Check the impact or intensity level when shopping for a sports bra. A low-impact bra works great for yoga or hiking. A high-impact bra is necessary for activities like running. [26] X Research source Smaller-breasted women are usually comfortable in compression bras (that give the appearance of a “unibreast”) and look like a cropped tank top. For larger-breasted women, an bra that cups and encapsulates each breast may be more comfortable and inhibit bouncing. These bras have wide straps and clasps. [27] X Research source You may also find a bra that combines compression and encapsulation, which will give you the best support overall. [28] X Research source
If your shoulders are sloping or narrow, try a bra with a leotard back, a racerback bra, or buy a special clip that will keep your straps from slipping off your shoulders. [31] X Research source
Many women choose to wear a bra with an underwire, but a soft-fit bra that is properly fitted can provide equal support. Go with whatever feels most comfortable to you. [33] X Research source
If your bra becomes uncomfortable when you sit, try a larger band or a bra with and arched center panel. Your ribs expand when you are in a seated position. You want your bra to be comfortable whether you’re on your feet or in a chair. [35] X Research source