Menstrual cup sizes, explained
Lucy MeacherChoosing your first menstrual cup (or switching to a new one) can feel a little overwhelming - especially when you’re faced with colours, sizes, and flow types.
The good news? Menstrual cup sizing doesn’t have to be complicated.
At Eleria, we’ve designed our range to make finding your cup feel simple, intuitive, and supportive - whatever your flow looks like. Here’s how to choose the right one for you.
Why does menstrual cup sizing matter?
Unlike pads or tampons, menstrual cups sit comfortably inside the vaginal canal and collect your flow rather than absorbing it. This means:
- Capacity matters - how heavy your flow is changes how much capacity you need in a cup
- Stem style matters - how high/low/average/tilted your cervix is changes which stem style will work best for you
- Firmness matters - how easy/difficult you find insertion and removal changes how soft or hard you want your cup to be
The right size helps prevent leaks, improves comfort, and makes your whole period experience feel easier.
Take the Period Cup Quiz
To keep things simple, we've designed our period cup quiz to help guide you to which cup will be best for you. You can take the quiz here.
But if you're looking for a bit more explanation the we'll break it down for you:
Our Smallest Cups = The Yellow One or The Blue One
Best for you if:
- You have light periods
- You’re at the start or end of your cycle
- You prefer a smaller, more discreet cup
- Our 'Best for Teens' Cup
The Yellow One (15ml) also features an anti-spill rim and easy-grip ring stem, making it a favourite for beginners who want a little extra confidence during removal.
The Blue One (15ml) also has a longer stem, which is ideal for those with a higher cervix, and can be trimmed as needed!
Our all rounder cup = The Green One
Best for you if:
- You experience a regular/heavy flow
- You’re new to menstrual cup, and looking for the most standard shape/size
- You're unsure of you cervix height - this ones easy to trim the stem if needed
The Green One (20ml) is our most versatile choice and suits many people as their go-to cup for most cycle days.
The Special Cups = The Pink One or The Purple One
Best for you if:
- Purple - you have given birth vaginally or have a low cervix
- Pink - you have a Tilted Cervix
These cups offer higher capacity while still staying comfortable and flexible. They’re designed to give you peace of mind when your flow is at its strongest.
The Pink One (20ml) also has a curved shape, which is great for a lower or tilted cervix.
The Purple One (20ml) has a rounded shape with a ball stem, easy to locate for removal!
You can always adjust
Your period isn’t the same every day - and your cup doesn’t have to be either. If you’re unsure, starting with your typical flow level is always a great first step.
Some people use:
- a lighter cup for the beginning and end of their cycle
- a higher-capacity cup for their heavier days, or for when they're able to change it less frequently
There’s no “one perfect cup forever” - just what works best for you, and you may have to try a couple before you find your soulmate!
A gentle reminder
Finding the right menstrual cup is a bit like finding your favourite jeans:
It might take one try.
It might take two.
And that’s completely okay!
Your comfort comes first.
If you ever need help choosing, our team is always happy to guide you - no pressure, no judgement, just honest support. Either take our Cup Quiz on our website, or reach out to the team at @eleria_uk on TikTok or Instagram, or drop us a message at hello@eleria.com.
