It may be useful to use a full-length mirror to see yourself as well.
Stand up straight and have someone help you if necessary to ensure the measuring tape gives you an accurate measurement.
For example, if you measured your band size as 83 cm (33 in), you’d round that number down to 80. When you plug your measurements into the online calculator, it will convert them from centimeters to inches before telling you your bra size.
Many people say it’s easiest to get an accurate measurement by wearing a non-padded bra, though you can measure yourself braless as well.
Band and cup measurements of 29. 8 in (76 cm) and 34. 6 in (88 cm) would round up to 30 in (76 cm) and 35 in (89 cm) respectively. If you measured a band size of 31 in (79 cm), you would round it up to the even number 32 in (81 cm).
For example, if you subtract your band measurement from your cup measurement and get 4, you’re a D cup. A band measurement of 34 and a cup measurement of 37 would be a difference of 3, or a C. If you’re not sure which sizes correlate to which numbers, go online to find a cup size chart to refer to.
Note that bra sizes vary widely between bra companies, so use this bra size as a reference point.
Most bra size calculators are found on a specific bra company’s site, so be aware that you may get different sizes from different companies depending on how they measure bras.
If you ordered a bra online, keep the tags attached while trying it on in case it doesn’t fit well and you need to return it.
Make sure your bra straps are even on both sides.
Look in a mirror to ensure the band goes straight across your body and isn’t uneven in any spots.
The cups of your bra should be smooth and moulded to your breasts. If your bust is spilling out of your cups, you need to go up a size or two.
