Dog Pregnancy Calculator

Calculate expected litter size and pregnancy duration for dogs based on breed and mating date

Input Parameters

Calculation Results

Estimated Pregnancy Duration

63 days

Estimated Litter Size

6 puppies

Due Date

MM/DD/YYYY

These are estimated values. Actual litter size and pregnancy duration may vary.

Calculation Formula

Gestation Period = 63 days (constant for dogs) + adjustment based on breed

Where:
Gestation Period: Average pregnancy duration for dogs is 63 days, with typical range of 58-68 days
Litter Size: Estimated using breed averages and optional uterine size

Dog Pregnancy Calculator Calculator Usage Guide

Learn how to use the Dog Pregnancy Calculator and understand its limitations

How to Use This Calculator

  1. Select the dog breed from the dropdown menu. This helps determine an estimated litter size based on breed characteristics.
  2. Enter the mating date. This is the date when the dog was bred, which is used to calculate the estimated due date.
  3. (Optional) If you have information about the dog's uterine size in cm, you can enter it here. This can help refine the litter size estimate, as larger uteruses may indicate a larger litter.
  4. Click the "Calculate" button to generate estimates for pregnancy duration, litter size, and due date.

Understanding the Results

Estimated Pregnancy Duration: The average gestation period for dogs is 63 days, with a typical range of 58-68 days. This calculator provides an estimated duration based on breed characteristics.

Estimated Litter Size: This is an estimate based on breed averages. Actual litter size can vary significantly based on many factors including the mother's health, age, and genetics.

Due Date: Calculated as 63 days after the mating date by default. This provides an expected date when the puppies might be born.

Important Considerations

  • This calculator provides estimates only and should not replace veterinary advice.
  • Actual litter size and pregnancy duration can vary considerably based on individual factors.
  • For accurate monitoring of pregnancy, regular veterinary check-ups are recommended.
  • The optional uterine size measurement should be taken by a veterinarian during an ultrasound examination.