When do kittens start their vaccines?
Start the trivalent core kitten vaccine (panleukopenia, herpesvirus, calicivirus) at 6 to 8 weeks of age, then every 2 to 4 weeks until 16 weeks of age or older. (WSAVA 2024 guidelines)
Kitten vaccination schedule calculator
Dated vaccine windows for your kitten's first year, from the WSAVA 2024 vaccination guidelines. Your vet sets the exact day.
Your kitten's vaccine windows
Enter a birth date, or roughly how old your kitten is. The windows are worked out on this device; nothing you type is sent anywhere.
This ran on your device. Nothing you typed was sent.
The calendar file has one all-day event on the day each window opens, with an alert at 9:00 that morning. It is built on this device and holds no link.
Keep this plan with reminders
Saving adds an e-mail before each window and your kitten's vaccination record. You can export or delete everything at any time.
Next: a name and a breed, then you choose where to save. Nothing is sent until you do.
Looking after a puppy? Puppy vaccination schedule
Worked example
A kitten born on , looked up on . Your own dates appear above when you use the calculator.
Vaccine windows for a kitten born 15 August 2026
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Open now
Core kitten vaccine (panleukopenia, herpesvirus, calicivirus), dose 1
to (8–10 weeks old)
To be set by your vet.
Source: WSAVA 2024 guidelines: Feline Vaccination Guidelines: Core vaccines for pet cats, checked .
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Coming up
Core kitten vaccine (panleukopenia, herpesvirus, calicivirus), dose 2
to (11–13 weeks old)
To be set by your vet.
Source: WSAVA 2024 guidelines: Feline Vaccination Guidelines: Core vaccines for pet cats, checked .
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Coming up
Core kitten vaccine (panleukopenia, herpesvirus, calicivirus), dose 3
to (14–16 weeks old)
To be set by your vet.
Source: WSAVA 2024 guidelines: Feline Vaccination Guidelines: Core vaccines for pet cats, checked .
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Coming up
Core kitten vaccine (panleukopenia, herpesvirus, calicivirus), dose 4 (at 16 weeks or older)
to (17–19 weeks old)
To be set by your vet.
Source: WSAVA 2024 guidelines: Feline Vaccination Guidelines: Core vaccines for pet cats, checked .
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Coming up
Core kitten vaccine (panleukopenia, herpesvirus, calicivirus), revaccination at or shortly after 26 weeks
to (26–30 weeks old)
To be set by your vet.
Source: WSAVA 2024 guidelines: Feline Vaccination Guidelines: Core vaccines for pet cats, checked .
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Coming up
First yearly health check (about 1 year of age)
to (50–54 weeks old)
To be set by your vet.
Source: WSAVA 2024 guidelines: Feline Vaccination Guidelines: Core vaccines for pet cats, checked .
Each later window assumes the dose before it is given about 3 weeks after the previous one; when you record the real date, the windows after it move.
First 16 weeks: what to ask your vet about your kitten
Ask your vet about starting core vaccines between 6 and 8 weeks of age.
Source: WSAVA 2024 guidelines: Feline Vaccination Guidelines: Core vaccines for pet cats, checked .
Core doses come every 2 to 4 weeks until your kitten is at least 16 weeks old.
Source: WSAVA 2024 guidelines: Feline Vaccination Guidelines: Core vaccines for pet cats, checked .
Ask whether feline leukaemia (FeLV) vaccine is core where you live; a test comes before the first FeLV dose.
Source: WSAVA 2024 guidelines: Table 2. Vaccines for pet cats (non-shelter), row 'FeLV', checked .
Ask when rabies vaccine is needed where you live; local rules and the vaccine label set the timing.
Source: WSAVA 2024 guidelines: Table 2. Vaccines for pet cats (non-shelter), row 'Rabies', checked .
Plan another core dose at 26 weeks of age or older.
Source: WSAVA 2024 guidelines: Feline Vaccination Guidelines: Core vaccines for pet cats, checked .
Keep the vaccination card or passport, and note each date given so the next window can be worked out from it.
Source: WSAVA 2024 guidelines: Feline Vaccination Guidelines: Core vaccines for pet cats, checked .
Adult cats
After the first year, boosters follow your vet's record. What the guidelines say:
Low-risk adult cats: core revaccination at 3 years of age and then no more often than every 3 years; higher-risk cats (boarding, contact with other cats) may need herpesvirus and calicivirus revaccination up to yearly.
Source: WSAVA 2024 guidelines: Table 2. Vaccines for pet cats (non-shelter), column 'Revaccination', checked .
Rabies: follow local regulations as a priority; if there are none, follow the product leaflet. Feline rabies vaccines generally carry a 1-year or 3-year licensed duration.
Source: WSAVA 2024 guidelines: Table 2. Vaccines for pet cats (non-shelter), row 'Rabies', checked .
Feline leukaemia (FeLV) vaccine is core for cats under 1 year where FeLV is prevalent: start as early as 8 weeks, a second dose 3 to 4 weeks later; only FeLV-negative cats should be vaccinated, so a test comes first.
Source: WSAVA 2024 guidelines: Table 2. Vaccines for pet cats (non-shelter), row 'FeLV', checked .
What this can't tell you
- The exact day of each dose. These are guideline windows, not appointments: your vet sets the day.
- Which other vaccines your kitten needs, such as feline leukaemia (FeLV). That depends on where you live and whether your kitten goes outdoors; ask your vet.
- When the rabies vaccine is due. Local rules and the vaccine label decide it.
- Anything about your kitten's health. A kitten who is unwell, or was vaccinated on other dates, may need a different plan.
- Boosters after the first year. They follow your vet's record.
Questions owners ask
What comes after the kitten series?
A subsequent core dose at 26 weeks of age or older, as an alternative to vaccinating at about 1 year of age; it does not replace a first annual health check at about 1 year. (WSAVA 2024 guidelines)
Does my kitten need the feline leukaemia vaccine?
Feline leukaemia (FeLV) vaccine is core for cats under 1 year where FeLV is prevalent: start as early as 8 weeks, a second dose 3 to 4 weeks later; only FeLV-negative cats should be vaccinated, so a test comes first. (WSAVA 2024 guidelines)
When does my kitten get the rabies vaccine?
Rabies: follow local regulations as a priority; if there are none, follow the product leaflet. Feline rabies vaccines generally carry a 1-year or 3-year licensed duration. (WSAVA 2024 guidelines)