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PETS
Animal gestation calculator
Estimated birth window for dogs, cats, horses and rabbits
ANIMAL GESTATION
When might the birth occur?
indicative central date—
Result details
Select a date
Inside the result
Updates as you change the inputs!
For dogs, a mating date is less precise than a known ovulation date, so the window is deliberately wider.
This is an indicative window, not a diagnosis. Ultrasound, hormone monitoring and veterinary assessment may change the estimate.
DOES THE RESULT LOOK WRONG?
Help us improve this calculator.
HOW IT WORKS
A result to understand, not just read.
Enter the requested values in Animal gestation calculator and change them to compare different scenarios. The result is an informative estimate and does not replace official documents or professional advice.
- The calculation runs in your browser and the values you enter are not stored.
- Compare several scenarios and check that the starting data are correct.
- For financial, tax, health or veterinary decisions, also use official sources and qualified professionals.
OFFICIAL SOURCES
merckvetmanual.com↗FREQUENTLY ASKED QUESTIONS
Is the result exact?+
It is an estimate based on the values entered and the stated assumptions. The real result may differ.
Are the values I enter stored?+
No. Values used in the calculator are not stored.