Dimensions first
Diameter and length affect how a model may feel and how it sits. Compare millimetres before relying on vague labels such as small, regular or large.
Evidence-bounded cup comparison
The best menstrual cup is the one you can compare clearly.
No invented tests. No universal winner. Just a practical way to compare menstrual cups by documented dimensions, capacity, intended use and manufacturer instructions.
Editorial principle
“Best” means best-matched to your needs, not a ranking unless a reliable test basis exists.
Start with fit logic
Compare the things that change your choice.
Helpful cup comparison starts with concrete product information: diameter, cup length, total length, capacity to the holes and the supplied care instructions. Personal factors such as flow and preference matter; age or childbirth alone should not be treated as a size rule.
Capacity in context
Capacity should be read together with your flow and emptying routine. MonthlyCup’s published model chart states capacity measured up to the holes.
Instructions matter
Use and care guidance is part of the product, not an afterthought. Follow the instructions supplied with the cup and refer product questions to support.
37 mmMini diameter in the published MonthlyCup guide
43 mmNormal diameter in the published MonthlyCup guide
47 mmPlus diameter in the published MonthlyCup guide
12 hMaximum time before emptying according to the manufacturer summary
Model data, not ranking
MonthlyCup sizes at a glance.
The following values are taken from MonthlyCup’s published model comparison guide. They are useful for comparison, but they do not guarantee fit for every person.
Source basis: MonthlyCup manufacturer-published guide and product information retrieved for bounded editorial guideing. Manufacturer information is not independent clinical evidence.
| Model | Diameter | Cup length | Total length | Capacity to holes |
|---|---|---|---|---|
| Mini | 37 mm | 45 mm | 55 mm | 15 ml |
| Normal | 43 mm | 55 mm | 65 mm | 22 ml |
| Plus | 47 mm | 55 mm | 65 mm | 43 ml |
FAQ
Quick answers before you compare.
Is this an independent menstrual cup test?
No. This is an editorial comparison guide based on documented product information supplied in the source pack. It does not invent tests, rankings, user quotes or clinical findings.
Can one menstrual cup be called the best?
Only with enough reliable evidence for the specific claim. Here, “best” means best-matched to your needs after comparing documented features, not an objective winner.
Does age or childbirth determine cup size?
MonthlyCup’s guide advises that age or childbirth alone should not be treated as a size rule. Measurements, flow and personal preferences should also be compared.
Where can I find current product details?
Use the current MonthlyCup guide, product pages or support information for live product-specific questions, prices and availability.