Use the free Conception Calculator by Calculator Hub HQ to estimate your conception date based on your due date or the first day of your last menstrual period (LMP). Whether you’re tracking fertility, planning pregnancy, or simply curious, get accurate results instantly.
A Conception Calculator is a tool that helps you estimate the approximate date of conception based on known information such as your due date, last menstrual period (LMP), or ovulation date. It is especially helpful for:
At Calculator Hub HQ, we provide a fast, easy-to-use, and medically accurate conception calculator that delivers results in seconds.
Our tool uses the standard obstetric method, assuming a 280-day (40-week) pregnancy timeline, to calculate conception with accuracy and ease.
With our Conception Calculator, you can determine:
This tool is great for confirming pregnancy details, understanding fertility cycles, or simply learning more about how pregnancy timelines work.
Optional: Use it alongside our Due Date Calculator for complete pregnancy tracking.
The calculator provides an estimated date based on standard pregnancy models. Actual conception may vary depending on ovulation timing and cycle length.
While it can give you an idea of when conception occurred, only DNA testing can accurately confirm paternity.
For irregular cycles, the estimate may be less accurate. Tracking ovulation through other methods (like basal body temperature or ovulation tests) is recommended.
Whether you’re confirming when you conceived, trying to conceive, or simply exploring your pregnancy journey, the Conception Calculator by Calculator Hub HQ gives you quick, science-based results to help you understand your body better.
Try it now—it’s easy, private, and 100% free to use.
