Sizes and Capacities

It is sometimes difficult to decide when it comes to choosing the size of your menstrual cup. This is an important choice because of the effectiveness of your cup will depend on it.

To help you, please have a look on our sizes table: 

Size is defined regarding two criteria: age and maternal history. *

Have I given birth ? Less than 30 years More than 30 years
YES, vaginally L L
YES, by caesarean S L

*Please keep in mind that each women is different. It is possible that despite these criteria another size would be more suitable for you. Recommendations regarding age and maternal history should be respected rather than choosing the size of your cup according to your menstrual flow.

Capacities table

Would you like more informations on the real capacity of the SI-BELL menstrual cup? Please, compare our two sizes of cups:


Size Capacity Diameter Weight
Until holes Until the top
S 18.5 ml 20 ml 41 mm 10.6 gr
L 27ml 30ml 46 mm 12.7 gr



Size Length Stem
Total Cup
S 74 mm 47 mm Ronde
L 74 mm 52 mm Ronde