How to Use the Pet Vaccination Calculator
Keeping your pet's vaccinations current is one of the most important steps in preventive healthcare. This calculator takes the last vaccination date and vaccine type to instantly show the next due date and a recommended window.
Dog vaccines: DHPP core vaccines are given annually. Rabies schedules vary by state (1-year or 3-year). Bordetella (kennel cough) is recommended every 6 months for dogs in contact with other dogs. Heartworm prevention is given monthly.
Cat vaccines: FVRCP is typically given every 1-3 years after the initial kitten series. FeLV is especially important for outdoor cats. Consult your veterinarian to determine the best schedule for your cat.
The recommended window shown is ±7 days around the calculated due date. Always consult your veterinarian for guidance specific to your pet's health history.
Frequently Asked Questions
If the result shows "Overdue," schedule a vet visit as soon as possible. Depending on how long ago the vaccine was due, your vet may recommend a simple booster or a restart of the series. Don't delay — immunity may still be partially present.
Rabies vaccination laws vary by state and locality. Most states require dogs and cats to be vaccinated every 1-3 years. Check your local ordinances and confirm the appropriate interval with your veterinarian.