This handy gestation calculator is available as a free download to use on your PC or Macintosh desktop.
to download the file for Windows (178 KB). You will need to unzip the file and save it to your desktop. Then, all you have to do is double click to use it anytime.
Not available for Macs.
By downloading this file you agree that you will use it only on your own computer and not upload it to any other website.