## About Dog Whelping Calculator (Formula)

A Dog Whelping Calculator is a tool used to determine the approximate whelping date of a dog based on the due date, which is the date when the dog’s pregnancy is expected to end. The due date is usually calculated by counting 63 days from the date of the dog’s last heat. The formula for calculating the whelping date is:

**Whelping Date = Due Date + 63 days**

Where:

- Due Date is the date when the dog’s pregnancy is expected to end, usually determined by counting 63 days from the date of the dog’s last heat.

Whelping calculators are commonly used by breeders, veterinarians, and dog owners to determine the approximate whelping date of a dog and to prepare for the delivery of the puppies. They can be found in spreadsheet software or as online calculators and can be used to calculate the whelping date based on the due date.

It’s important to note that this is just an approximation, and the actual whelping date can vary due to factors such as the dog’s breed, health, and individual physiology. It’s always better to consult a veterinarian for accurate information.