Wondering when your next period is due? Our period calculator helps you easily predict your upcoming period dates and stay prepared. Whether you're planning for travel, fertility, or just want to understand your cycle better, this tool is simple and accurate.
To calculate your next period, you need to know two things: the first day of your last period and the average length of your cycle. Most menstrual cycles range between 21 to 35 days. Enter this info into our period date calculator, and we’ll estimate when your next period will start.
Our menstrual cycle calculator uses your cycle history to predict future periods, ovulation, and fertile windows. It’s especially helpful if your periods are regular, but even if they’re not, our tool provides a close estimate to help you stay informed.
To calculate your menstrual cycle, count the number of days from the first day of one period to the day before the next one begins. For example, if your period starts on May 1st and your next one starts on May 29th, your cycle length is 28 days.
Our menstrual calculator is designed for everyday use. It simplifies your health routine by letting you know when to expect your next period and when you might be most fertile. No more surprises - just reliable, personalized predictions.
Just enter the first day of your last period and your average cycle length. Our period cycle calculator will instantly give you your expected period start date and insights into your menstrual rhythm.
Try our accurate period calculator now - it’s fast, free, and easy to use!