Gestational Calculator Equine Foaling Estimator
Calculate mare's approximate due date
Enter last breeding date in format
 mm/dd/yy:

Desired gestation duration:

Estimated foaling date:
 
Number of days mare in foal
Enter last date mare was bred:

Enter today's date:


Estimate of days mare is in foal

You should average plus or minus 10 days for actual foaling window.