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.