Calculadora de Gestação Felina
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
gestação felina: 65 dias (63–67)
About this calculator
The Feline Gestation Calculator is a practical tool for owners and breeders to estimate a cat's due date. Feline pregnancy lasts an average of 65 days, ranging from 63 to 67 days. By entering how many days ago mating occurred, the calculator projects the probable delivery date, helping plan veterinary care and prepare the environment.
It works simply: you enter the current date and how many days have passed since mating. The calculator adds the remaining gestation period (65 days minus days elapsed) to estimate the due date. For example, if mating was 10 days ago, approximately 55 days remain. This estimate uses the 65-day average, but 63, 67 days is normal.
Use this calculator when you know the exact mating date or have a reliable estimate. It helps monitor the cat's health, schedule vet visits, prepare a safe whelping area, and identify potential complications. Breeders can also use it for litter planning.
Important considerations: gestation can vary; delivery before 63 days or after 67 days requires veterinary attention. The calculator provides an estimate, not a diagnosis. Consult a veterinarian for prenatal care and date confirmation. Factors like breed, age, and health may also affect duration.
Frequently asked questions
Does the calculator consider the exact mating date?
Yes, you enter how many days ago mating occurred to estimate the due date.
What if the cat doesn't give birth on the estimated date?
Feline gestation can range from 63 to 67 days. If it exceeds 67 days, consult a vet immediately.
Can I use the calculator if I don't know the exact mating date?
No, the tool requires the mating date. Without it, the estimate won't be reliable.
Does the calculator replace veterinary care?
No, it's only an estimate. Veterinary care is essential for the health of the cat and kittens.
Does the cat's breed affect gestation length?
Yes, breeds like Siamese may have slightly shorter gestations, but the 65-day average applies to most.