What is a period calculator?

A period calculator is a helpful tool that can be used to predict a woman's menstrual cycle and estimate the expected dates of her periods. This is a type of fertility calculator, which can provide extremely useful information to a woman during her reproductive years.

A period calculator typically asks for information such as the last start date of a woman's period, the average length of her menstrual cycles, and the average duration of her periods. It then uses this information to calculate an estimated date for when her next period should begin, as well as providing an estimation for when she may ovulate.

Period calculators can be particularly helpful for women that track their monthly cycles closely in order to conceive or avoid pregnancy. Knowing when peak ovarian activity occurs can help women manage their fertility more effectively by helping her know when it's an appropriate time to try and conceive or use proper contraception options.

Apps such as Clue, myNFP and OvuSense combine scientific research with advanced algorithms to give women greater control over their reproductive health. These apps typically include additional features such as tracking your moods, energy levels and symptoms, in addition to providing tips on ways to regulate hormones and optimize your health during each phase of your cycle. Gynecologists have praised these apps for helping women understand their bodies better and practice effective birth control methods without having to rely on potentially dangerous hormones from hormonal birth control pills or injections.