Calculate Your True Bra Size!

Inspired by the A Bra That Fits subreddit on, this web app is for entertainment purposes only.

There is a growing movement online to free women from the wrong bra size! Adding 4 to your band measurement is an out-dated practice, originating during a time before elastic bands were created. Now in this modern age, let's re-educate cis and trans women and help them love their bodies.

Men can use this too, if they are curious =)

Enter Your Measurements in Inches
Please enter a value greater than or equal to 24
Your bust measurement must be at least 1 inch larger than your rib
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