How do I determine my size?

1.Band Size

πŸ“ Underbust Size Calculation Rules:

Underbust Measurement: use a soft ruler to measure around the underbust (bottom of the breast).

  • Less than 36 inches β†’ use +4/+5 rule
  • 36 inches and over β†’ round directly to the nearest even number

Adjust the value:
If the measurement is less than or equal to 36 inches, usually add 4 or 5 inches to get the final Band Size.
Add 2 for even numbers and 1 for odd numbers.

πŸ“Š Conversion Example (Underbust β†’ Band Size)

Less than 36 inches
Calculate Band Size 36 inches and over Calculate Band Size
26-27 28 37-38 38
28-29 30 39-40 40
30-31 32 41-42 42
32-33 34 43-44 44
34-36 36 45-46 46

πŸ’‘Β Example:

  • Lower circumference measurement 31 inches

31 is an odd number, so +5
31 + 5 = 36 (final Band Size)

  • Bottom measurement 30 inches

30 is an even number, so +4
30 + 4 = 34 (Final Band Size)

2.Cup Size

πŸ“ Measurement: Measure the Bust Size, which is the circumference of the fullest part of the breast. Then use Bust - UnderbustΒ to calculate the cup.

πŸ“Š Cup Calculation Chart (Bust - Underbust):

Difference (In)Β 
Β Cup Size
1 A
2 B
3 C
4 D
5 DD (E)
6 DDD (F)

πŸ’‘ Example:

If your:

Underbust 78 cm (β‰ˆ 31 inches, corresponding to 36)
Bust 93 cm (β‰ˆ 37 inches)
Cup calculation: 37 - 31 = 6 inches (corresponds to DDD/F)
Final size: 36DDD/F