Here’s a detailed table that explains everything you need to know about bra size for twins, including how to measure the band size, cup size, and some general information about bra sizing. This table can be a helpful guide for determining the correct bra size for both individuals.
Bra Size Information for Twins
Measurement
Twin 1
Twin 2
How to Measure
Explanation
Underbust (Band Size)
Enter measurement in inches (e.g., 32)
Enter measurement in inches (e.g., 34)
Measure snugly around the rib cage, directly under the bust
This is the base size used to calculate the band size of the bra.
Bust Measurement
Enter measurement in inches (e.g., 36)
Enter measurement in inches (e.g., 38)
Measure around the fullest part of the bust
The bust measurement is key to determining the cup size.
Band Size
Round the underbust measurement to the nearest even number (e.g., 32)
Round the underbust measurement to the nearest even number (e.g., 34)
Use the underbust measurement and round to the nearest even number
The band size is the number part of the bra size, e.g., 32, 34, 36.
Difference (Bust - Underbust)
Calculate the difference (e.g., 36 - 32 = 4)
Calculate the difference (e.g., 38 - 34 = 4)
Subtract the underbust from the bust measurement
The difference helps to determine the cup size (e.g., 4 inches = Cup D).
Cup Size
4 inches = D
4 inches = D
Use the chart below to determine the cup size
The cup size is determined by the difference between the bust and underbust measurements.
Cup Size Chart
Difference (Bust - Underbust)
Cup Size
Less than 1 inch
AA
1 inch
A
2 inches
B
3 inches
C
4 inches
D
5 inches
DD (E)
6 inches
DDD (F)
7 inches
G
8 inches
H
9 inches
I
10 inches
J
Steps to Measure Bra Size for Twins:
Measure the Underbust (Band Size):
Measure directly under the bust, snugly around the ribcage. Round the measurement to the nearest even number. This becomes the band size.
Example: If the underbust measurement is 31.5 inches, round up to 32 inches (band size = 32).
Measure the Bust:
Measure around the fullest part of the bust, ensuring the tape is level around the body.
Example: If the bust measurement is 36 inches, the bust size is 36.
Calculate the Cup Size:
Subtract the underbust measurement from the bust measurement to get the difference in inches. Use the cup size chart to determine the corresponding cup size.
Example: If the bust is 36 inches and the underbust is 32 inches, the difference is 4 inches. This corresponds to a Cup D.
Final Bra Size:
Combine the band size and cup size to get the final bra size.
Example: 32D or 34D, depending on the individual’s underbust and bust measurements.
Example Bra Sizes for Twins:
Twin
Underbust
Bust
Band Size
Cup Size
Bra Size
Twin 1
32 inches
36 inches
32
D
32D
Twin 2
34 inches
38 inches
34
D
34D
General Bra Sizing Tips:
Try Different Brands: Different bra brands may have slight variations in fit even if the bra size is the same.
Sister Sizes: If the band feels tight but the cup fits well, try a larger band size with a smaller cup (e.g., 34B instead of 32C). Conversely, if the band feels loose, go down a band size and up a cup size.
Bra Fit Check: The center of the bra should lie flat against the chest, and the band should fit snugly but not too tight. Straps should not dig into the shoulders.
Measuring Regularly: It’s recommended to measure your bra size every six months to a year as your body may change over time.