Got a tape measure?

Then you don’t need to endure an embarrassing bra fitting at the lingerie store.

(The breast pain and backaches that can come withlarge breastsare nothing to joke about.)

Illustration of a person wearing a bra with a measuring tape across the chest

Photo:Grace Canaan

Are you wearing the right bra size?

Keep in mind that measuring your bra size isn’t a one-and-done proposition.

The tape should be level and very snug.

Graphic showing how to determine band size measurement using a tape measure beneath the bust

Grace Canaan

Round to the nearest whole number.

If the number is even, add four inches.

If it’s odd, add five.

Graphic showing how to determine bust size measurement using a tape measure across the front of the bust

Grace Canaan

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.)

Bra size chart for determining cup size, with band and bust measurement difference

Grace Canaan

Round the result to the nearest whole number.

Your bra size is your band size with your cup size.

Example: 37 inches (bust) 34 inches (band) = 3 inches.

Bra size chart with band size and cup volume, size 30B to 44F

Grace Canaan

That’s a 34C.

For example, if a 34C is too big for you in the cups, move to a 36B.

Use the bra size chart here to double-check you are moving up or down a bra size correctly.

Illustration of person clasping a bra from the back

Grace Canaan

(This is called the bra “sister size.")

It always pays to try bras on to ensure they’re giving you the fit you want.

And if you’re encountering spillage, your bra is probably too small.

Illustration showing a person wearing a bra with gaping cups

Grace Canaan

Why do my bra straps keep falling down?

What are the best types of bras for my shape?

It’s just a matter of finding thebest bra for your shape.

Illustration showing a person wearing a bra with loose straps falling down off the shoulders

Grace Canaan

Cohen recommends the best fitting bras for six common breast shapes.

How do you measure bra size without a measuring tape?

How often should I measure my bra size?

Illustration showing different breast shapes

Grace Canaan

If you experience weight gain or loss or a pregnancy, that can also impact your breast size.

Otherwise, it’s good to check on it yearly to ensure you’re wearing the right size bra.

Illustration showing a person using string to measure underneath the bust

Grace Canaan