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Enter date of last menstrual period, gestational age (on today's date or other ultrasound date), date of conception, OR estimated due date to estimate the other dates. Only EDD is affected by cycle length ≠28 days when calculating from LMP, EGA, and EDC.
Our online due date calculator uses a simple method to calculate your due date. Your due date is estimated to be 40 weeks after the first day of your LMP. Your cycle is assumed to be 28 days long, with ovulation occurring at day 14. Therefore the calculator adds 280 days (40 weeks) to your LMP.
2 wrz 2022 · Our Due Date Calculator is based on a 28-day cycle (cycles can vary from 20 to 45 days), and your period and ovulation are considered to be the first 2 weeks of pregnancy. As this method is affected by the regularity of your menstrual cycle, the due date predictor is not 100% accurate.
This free due date calculator estimates the due date based on the menstrual cycle, ultrasound, conception date, or IVF transfer date.
Your due date is calculated by adding 280 days (40 weeks) to the first day of your last menstrual period (assuming a 28 day cycle). Note that your menstrual period and ovulation are counted as the first two weeks of pregnancy.
Our new Pregnancy Calculator reveals the conception date, the due date and the end of both of the trimesters. Additionally, it is helpful to determine how long you have been pregnant, in order to calculate the possible birth date.
If you’re not sure about your due date, our easy-to-use calculator can help! Just enter the date of the first day of your last period, as well as the average length of your menstrual cycle, and our calculator will do the rest.
