Dog Gestation / Due Date Calculator
Calculate the whelping due date for a dog (bitch) from the breeding date (gestation ~63 days), with pre-whelping management reminders.
A bitch whelps at about 63 days (9 weeks) from mating — useful for working and guard dogs on the farm. Enter the breeding date to get the due date plus key pre-whelping management reminders.
Indicative planning figures based on published research averages. Local soil tests, varieties and weather change actual requirements — confirm with your agronomist or extension officer.
Livestock keepers and vets use the free Dog Gestation Calculator to mark the whelping date and schedule dry-off, vaccination and pen moves in advance.
About Dog Gestation / Due Date Calculator
A bitch whelps at about 63 days (9 weeks) from mating — useful for working and guard dogs on the farm. This calculator turns the breeding (or AI) date into the expected whelping date and a normal range, and lists the key pre-whelping jobs — so nothing is missed. Dog (bitch) gestation averages about 63 days; enter the service date and the tool counts forward, also flagging when to prepare for the birth. Knowing the date protects both dam and offspring and lets you plan labour and facilities.
How to use Dog Gestation / Due Date Calculator
- 1Enter the breeding / AI / service date.
- 2Read the expected whelping date and the earliest–latest range.
- 3Note the pre-birth management dates and plan accordingly.
Why use Dog Gestation / Due Date Calculator?
- ✓Uses the correct ~63-day gestation for dog (bitch)
- ✓Gives the expected whelping date and a normal range
- ✓Lists pre-birth management reminders (dry-off, vaccination, pen move)
- ✓Free, instant and fully in-browser
Frequently asked questions
How long is the gestation period of a dog?+
About 63 days on average (± 2 days is normal). A bitch whelps at about 63 days (9 weeks) from mating — useful for working and guard dogs on the farm.
How do I calculate the whelping date?+
Add the gestation length (~63 days) to the breeding date. This tool does it instantly and also marks a normal range, since births a few days either side of average are common.
What should I do before whelping?+
Prepare a clean, quiet birthing area, ensure pre-birth vaccination and (for dairy animals) timely dry-off. The tool lists these dates counted back from the due date so you can schedule them.
Is this tool free and private?+
Yes — free, no sign-up, and all calculation runs in your browser, so it works offline at the farm and your data never leaves the device.
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