Choosing A Menstrual Cycle Calculator: The Complete Guide

menstrual cycle calculator

Do you have irregular periods?

You're not alone, roughly 30% of women do during their childbearing years. 

Do you sometimes find yourself caught embarrassingly off-guard without access to sanitary products?

Monitoring your menstrual cycle has many benefits including helping you plan or avoid a pregnancy, schedule events around the inconvenience of your period, or simply help you to become more aware of what's going on in your body.

The easiest way to keep track of your period is a menstrual cycle calculator. Sometimes known as a menstrual cycle calendar, it provides you with an easy and accurate way to monitor your cycle.

Sure, you can use an old-fashioned paper calendar with a pen. However, so many calculators offer an abundance of useful features that they are a worthwhile investment.

10 Best Menstrual Cycle Calculators

There are so many options available, so this article is designed to help you find the type of calculator that works best for you and your personal needs.

Different Types Of Menstrual Cycle Calculators

I’ve already stated that an old fashioned pen and paper could help you work out your menstrual cycle, but there are far easier options available.

Here are some of the most common types of menstrual calendars and calculators that offer reliability and predictability when it comes to your menstrual cycle.

menstrual cycle calculator


In a world where almost everyone has a smartphone, a menstrual cycle app is easy to access and even easier to use.

They're easy to download onto your phone, coming in a range of prices and offering a range of extra functions.

The benefit of using an app to track your menstrual cycle is its accessibility.

Smartphones are often kept close to hand at all times so adding information and receiving notifications can be done immediately.

Some apps will be able to sync with other functions on your phone to create a real ‘one stop shop’ function. All your personal data, appointments and so on can all be linked together.


Menstrual cycle wheel is a great visual learning tool. They are simple, although some do offer extra functions such as important dates throughout a pregnancy, but mostly they just help give a simple, interactive approach to your menstrual cycle.

A menstrual cycle wheel is often palm-sized, so small enough to fit in your pocket or handbag to have with you at all times.

Online Calculators

Many women’s health websites will offer access to a menstrual cycle calendar.

These can simply tell you when your next period will be or explain in extensive detail the stages of the menstrual cycle.

You obviously need an internet connection and storing and keeping your details isn't always possible.

However, they're quick to use and will provide information regarding your menstrual cycle rather efficiently.

Menstrual Cycle Calculator Brands

Most menstrual cycle calculators are found in app form and therefore have been created by app companies.

Many feminine hygiene brands will offer a free calculator on their websites, but as far as particular brands go, there aren't many calculators or that you can carry with you that have a focus on the menstrual cycle.

This article is designed to give you information on individual calculators rather than specific brands.

Keep reading to learn more about all your calculator options.

The Top 5 Menstrual Cycle Calculators

MyDays X – Period & Ovulation App

MyDays X – Period and Ovulation App

MyDays X is a free app that helps you track and monitor your menstrual cycle.

It's commonly used to help women accurately predict when they ovulate and therefore help them conceive.

However, there are many more benefits to using the app.

You can track your ovulation for the purpose of not falling pregnant, as well as learning more about your menstrual cycle.

The app requires a passcode to access information which prevents your private information from falling into the wrong hands.

There's the option to back up your information on your PC and you can even email your menstrual history directly to your doctor.

You're kept up to date with your statistics and other information, and with no hidden in-app purchases it's an incredibly easy and cost-effective way to keep track of your menstrual cycle.

MyDays X is accurate and reliable and because it's an app on your smartphone, you'll always have access to your health information!

Period Tracker

Period Tracker

Simple and sophisticated, very much like the name, this free app does exactly what it claims to do – track your period.

Whether you're a young teenager who wishes to avoid the embarrassment of being caught without sanitary napkins or tampons, you're trying to conceive, or you simply want to keep track of menstrual cycle related issues such as moodiness or acne, this app will help you.

The app is visually appealing and provides discreet notifications when you're the most fertile.

You're also able to take notes regarding your mood, symptoms and intimacy to help improve both your physical and emotional health.

Privacy settings on the app are questionable, but if you have a passcode on your smartphone the chances of your information being accessed by someone other than yourself are pretty minimal.

As with any other technological app, there's also the risk of information being lost. At this stage, there's no way to back your information up on another device.

Overall, it's a very useful free app that will help you track your menstrual cycle.

Pregnancy Wheel & Ovulation Calendar

Pregnancy Wheel and Ovulation Calendar

If you prefer to use something a little more visual to monitor your menstrual cycle, this wheel is ideal.

Designed to be used to help women conceive, it can also be used to simply track your period and learn more about your menstrual cycle.

It doesn't matter if your menstrual cycle is short, long or irregular, this wheel will cater for your needs.

The wheel is small enough to fit in your pocket or in your personal planner, therefore making it accessible at all times.

It's made from durable and lightweight plastic so it won’t break if you keep it in the bottom of your handbag.

The wheel does cost and can only be used by one person at a time, but if you're tracking your menstrual cycle with the aim of falling pregnant, the wheel will provide you with information and an appointment timeline for when you do conceive, making it one of the best menstrual cycle calculators for women wanting to have a baby.

WomanLog Pro Calendar

WomanLog Pro Calendar

Free apps are a wonderful way to experiment without losing money, but quite often they don’t offer the quality or sophistication of a paid app.

The WomanLog Pro Calendar is a cheap app that offers everything you need to keep track of your menstrual cycle.

Your information is stored confidentially due to the need for a passcode to access the app.

Three months worth of information can be seen at once, allowing you to monitor the regularity of your cycle.

WomanLog Pro offers more than menstrual cycle tracking. You can keep records of your blood pressure, weight and cervical mucus.

It will help tell you your most fertile days if you're trying to conceive, but will also remind you to take your contraceptive pill if contraception is your priority.

It's an app that can be easily personalized to suit your individual needs.

Women’s Medical Log

Women's Medical Log

Smartphones are certainly very accessible and the technology they offer is brilliant.

However, some people prefer to be able to physically write information down.

By using a handwritten log you can add your own notes and keep track of many other things such as medical appointments.

The log can easily be carried in your handbag so you have access to it at all times and the clearly labelled tabs make it easy to navigate through the pages.

The Women’s Medical Log is more expensive than an app, and if someone finds it they're able to read your personal information.

However, it keeps track of a lot of information and is ideal for those who may not be as technologically savvy. If looked after correctly, the likelihood of anyone else reading it is minimal.

You have the ability to create your own color coding system and personalize your menstrual and other health cycles in a way that you understand.

It's great for personal use, but also makes a wonderful gift for an important woman in your life.

The Next Best Menstrual Cycle Calculators

Period Calendar

Period Calendar
  •  A diary-like app that tracks your menstrual cycle and fertility.
  •  Passcode security helps prevent unwanted sharing of your information.
  •  A small payment for the app is required.
  •  Available in multiple languages.
  •  Information can be backed up automatically using Dropbox.
  •  Forums are available to help troubleshoot any problems.

Menstrual Calendar Premium

Menstrual Calendar Premium
  •  Advertisement-free app.
  •  Designed to help track your period, ovulation and general health.
  •  Offers the ability to store personalized notes.
  •  Pregnancy mode can be enabled if you conceive. This offers extra information and notifications that are relevant to pregnancy.
  •  Requires payment to download the app.
  •  Information may be lost if you lose your smartphone.

Vinnie’s Giant Rollercoaster Period Chart & Journal Sticker Book

Vinnie’s Giant Rollercoaster Period Chart and Journal Sticker Book
  • A spiral bound journal that offers a great visual menstrual tracker alongside a sense of humor.
  • Health tips, cures and funny quotes make tracking your period a worthwhile and enjoyable task.
  • Stickers will help keep track of moods, emotions and more, and the upfront approach helps to alleviate any taboos that are associated with the menstrual cycle.
  • There's a small cost to purchase the journal.
  • There's no way of keeping the information recorded private should you misplace the journal or leave it lying around.
  • It may be a slightly juvenile approach for some.

BLT Smart Fertility Monitor

BLT Smart Fertility Monitor
  •  A menstrual cycle calculator designed to help women who are planning to fall pregnant by monitoring fertility and ovulation.
  •  Measures temperature orally and quickly using the included device.
  •  No need for loads of paper, all the information is stored conveniently on your smartphone.
  •  More expensive than other apps, but it's more accurate and reliable.
  •  Great if you have irregular periods and are trying to conceive.

LoveCycles Menstrual Calendar

LoveCycles Menstrual Calendar
  •  Free app available for use on smartphones.
  •  Offers graphs for an optimum visual experience.
  •  Passcode protection provides privacy.
  •  Data can be backed up and synced to multiple devices.
  •  Also tracks moods and symptoms.

Menstrual Cycle Calculator Buying Guide

With so many menstrual cycle calculators on the market, it's important to find the best one to suit your needs. Here are some factors to consider when it comes to deciding what you need.

Personal Needs

Some calculators cater specifically for ovulation and fertility reasons. This includes both wanting to get pregnant and avoiding pregnancy.

These are usually more advanced and can often cost more.

If you wish to simply track your cycle to avoid nuisances that come with your period, you can opt for something simpler.

Personal Way of Working

A lot of people use their smartphones for everything. Emails, appointments, communication and more.

Having a menstrual cycle calculator on your smartphone is perfect if you're one of these users.

However, many people still prefer pen and paper so a diary form may work better for you.


There are many free apps available that are accessible by anyone.

If you're after a calculator that's a little more bespoke to your needs you may need to fork out some extra cash.

This will depend entirely on your personal needs and how much you're willing to spend.

In Conclusion

Tracking your menstrual cycle has many health benefits.

Using a menstrual cycle calculator is an easy way to keep up to date with your cycle, monitor your moods and other symptoms, and help with planning or avoiding a pregnancy.

Whatever your main focus, there's a calculator that will help you record and store information either for personal use or to pass on to a health professional.

This article has given you all the information necessary to help you find the right calculator for you, whatever your needs.