How Our Bra Size Calculator Works
The right maternity bra can give you the ultimate comfort, support and confidence you need after giving birth. Size issues are common when finding a bra for yourself but with the Ornavo bra size calculator you don't have to worry about size issues any more. All you need is to enter your accurate band and bust measurement and our online calculator will tell you your ideal size. This makes Ornavo one of the best online bra size calculator tools in Pakistan.
Bra Size Calculator Pakistan: Tailored for You
If you are searching for a bra size calculator in Pakistan, one thing that most women look for is something that understands local sizing standards and caters to all body types. Our calculator accounts for variations in manufacturing, cup tolerances, and standard band increments in Pakistan. It’s calibrated to guide you toward sizes that are actually stocked and comfortable in the regional market.
Many international calculators neglect local sizing conventions or convert poorly, but Ornavo’s tool ensures that your result aligns with what you’ll find in Pakistani lingerie stores or what we offer in our maternity and babycare collection.

How to Calculate Bra Size: Step by Step
Here is how you can calculate bra size using Ornavo's bra size calculator:
Measure your band size: Take a measuring tape and wrap it around your ribcage right under your bust.
Measure your bust size: Wrap the tape around the fullest part of your bust, keeping it level and not too tight or loose.
Input your measurements into the bra size calculator.
Get your recommended size: The calculator will compute your band size and cup size based on the difference between band and bust.
Adjust as needed — if you're between sizes, consider whether you prefer a tighter fit or more comfort.
This method is grounded in standard fitting logic: the difference between bust and band determines your cup size, and the band measurement gives the numeric portion of the bra size.

How to Calculate Bra Cup Size
One of the trickiest parts is determining your bra cup size. The rule of thumb is:
If your bust measurement is about 1 inch (2.5 cm) more than your band, you’re likely an A cup.
- 2 inches difference → B cup
- 3 inches → C cup
-
4 inches → D cup, and so on.
Our bra size calculator automates this calculation for you and accounts for rounding or sizing conventions in Pakistan. This helps you avoid errors like ending up with a too-loose or too-tight cup, which can lead to discomfort or poor support.

Maternity Bra Size Calculator: What Changes During Pregnancy?
Your size can change frequently during pregnancy and while you are breastfeeding. That is why a maternity bra size calculator is recommended to recheck your fit. Your ribcage may expand, your bust may increase by one or two cup sizes or more, and your preferred fit may shift.
Our calculator is flexible just re-enter your new measurements, and it will guide you to a more appropriate maternity or nursing cup size. With this you won't need to be worried about issues like under-support, pinching, or wires digging in as your body changes.
Why Our Online Bra Size Calculator Stands Out
Easy and intuitive interface — Our tool asks for just two measurements and gives you instant results.
Local sizing support — especially useful for those shopping for nursing bras in Pakistan.
Regular updates — as we expand our maternity and nursing ranges, the calculator evolves to support new cuts, band ranges, and cup options.
Reliable accuracy — because it uses proven measurement methods and considers how sizes are manufactured.
Whether you’re looking for daily wear, maternity bras, or nursing bras, Ornavo’s online bra size calculator helps you make confident, comfortable choices before you place an order.