FINDING YOUR CONFIDENCE

How to Measure Your Bra Size at Home

Got a tape measure?

Anyone who has worn an ill-fitting bra or the wrong bra size knows that doing so can ruin an otherwise flawless outfit —or worse, an entire day.

The solution is finding and investing in a set of undergarments that are the right cut, fit, and size—but it’s not a simple solution.

learn today!

Learning how to measure bra size can feel uncomfortable, but knowing your measurements—and keeping them written in a note on your phone or somewhere else that's accessible when the bra-shopping mood strikes—will make bra shopping so much easier

Step 1: Determine your bra band size

While braless or wearing a non-padded bra, use a measuring tape to measure around your torso directly under your bust, where a bra band would sit. The tape should be level and very snug. Round to the nearest whole number. This is your band size.

**Optional steps (for some ladies this calculation has resulted in a more accurate size. You can do both calculations and compare which is more accurate for your body) If the number is even, add four inches. If it’s odd, add five. Your band size is the sum of this calculation. (So if you measured 32 inches, your band size is 36. If you measured 33 inches, your band size is 38.

Step 2: Take your bust measurement

Wrap the measuring tape somewhat loosely around the fullest part of your chest (at nipple level). Round to the nearest whole number.

Step 3: Calculate your cup size

Subtract your calculated band size (Step 1) from your bust measurement (Step 2) and refer to the bra cup size chart here. Your bra size is your band size with your cup size. Example: 37 inches (bust) – 34 inches (band) = 3 inches. That’s a 34C.

Size Up or Down Using a Bra Sizing Chart

If you need to go down a cup size for fit, go up one band size, and vice versa. For example, if a 34C is too big for you in the cups, move to a 36B. Use the bra size chart here to make sure you are moving up or down a bra size correctly, and remember that your bra size might change slightly depending on the brand or type of bra. It may take some trial and error to find the perfect fit.

How to make sure a bra size is correct

Bend forward at the waist, then slip on the bra and hook it. This ensures your breasts are completely in the cups.
Adjust the band. The back of the bra should be level with the front.
Make sure the bra is not too loose. You should be able to slide only one finger underneath the band.
Fix falling straps. First, tighten the band, then shorten the straps.
Put on a close-fitting shirt over the bra. If the cups pucker or your breasts bulge, you are not wearing the correct bra size.
Look at yourself sideways in a mirror. Your breasts should sit midway between your shoulders and elbows. If not, you need a more supportive and better-fitting bra.
Choose a bra that fits perfectly when secured on the outermost hook. As the bra loosens over time, make the band taut by moving toward the tightest hook.

Bra Size Measurement FAQs

If you have gaping cups, that likely means your bra is too large for your breasts and you may need to go down a cup size. And if you’re encountering spillage, your bra is probably too small.

Why do my bra straps keep falling down?

Your bra straps are likely falling down for one of two reasons:

Bra straps can fall down if the bra is too large. If you have your straps tightened all the way and they’re still slipping, it could indicate you need a smaller size.
If you’ve had your bra for a while, it could mean the elastic has worn out over time and it’s time for a new bra.