How To Take Proper Female Model Measurements
To get set up, grab a measuring tape and a friend. Record your measurements in swimwear or very fitted clothing. Measurements will be most accurate if taken standing straight up with arms relaxed to your side. When you measure, you want the tape to lay flat across your skin.
Bust: The trick here is that in modeling, your bust measurement is not always the same as the number on your bra. You want to measure at the fullest part of your bust.
For example, you may be a 32C but have closer to a 35-inch bust. - See more here. You should wear a supportive, unpadded bra while you take your measurements. Bra-less you may measure an inch or two smaller. Cup size will be the size you use to buy your bras.
Waist: When most people think of waist, they think of the size of jeans or where their pants sit. For modeling measurements, you want to measure around the smallest part of your waist. For you, this might mean at your belly button or an inch or two above it. Just look in the mirror, see where your stomach goes in most, and measure there. - See more here.
Hips: While the name may be deceiving, for your modeling measurements you do not want to measure around your hip bone. Instead, measure around the largest part of your hips and bottom. - See more here.