Ranchito Sereno Peruvian Pasos, Stud service, Web design, Tack sales

This calculator can help you determine the due date for your mare. Average time for a mare's pregnancy is 338-343 days, though gestation may generally range from 320-380 days. Just type in the information and click "Calculate!" to get your results.

(Note: Internet Explorer recommended for proper calculations.)

Calculate an Estimated Foaling Date

Enter Last Bred Date (mm/dd/yyyy)...

Expected Gestation Period .................

Estimation of foaling date is:

Estimated Days Mare in Foal

Enter Last Bred Date (mm/dd/yyyy) ...

Enter Today's Date .....

Estimated days mare has been in foal:
Estimation in weeks or months:
Estimated days before foaling, within 340 days:

Ranchito Sereno
Javier and Cecile Ramirez • Weimar, TX 78962
Telephone: (979) 732-9713 • Email