Basic Calculations - 100/month. Required link back.
Customize Calculations - unlimited. Customizable. No link.
Due Date ~= Date of Conception + 266 days
The Pregnancy Calculator is an easy tool to use for calculating approximately when your pregnancy will be based on the date of your last period. The free online pregnancy calculator is extremely easy to use. All you have to do is enter in the date of your last period and then press calculate!
How to Calculate Pregnancy
Let's be honest - sometimes the best pregnancy calculator is the one that is easy to use and doesn't require us to even know what the pregnancy formula is in the first place! But if you want to know the exact formula for calculating pregnancy then please check out the "Formula" box above.
Add a Free Pregnancy Calculator Widget to Your Site!
You can get a free online pregnancy calculator for your website and you don't even have to download the pregnancy calculator - you can just copy and paste! The pregnancy calculator exactly as you see it above is 100% free for you to use. If you want to customize the colors, size, and more to better fit your site, then pricing starts at just $29.99 for a one time purchase. Click the "Customize" button above to learn more!