HerdFlo: Gestation Calculator

Keep births, treatments and weights together. Explore a sample herd, start free, and try Pro for 14 days without a card or automatic charge.

Know what needs attention. Keep the record.

HerdFlo helps small-herd owners keep breeding dates, birth outcomes, treatments, weights and pasture moves together, animal by animal.

START WITH A USEFUL RESULT Calculate an estimated livestock due date without an account. Explore an interactive sample herd, then create a free account when you want to save your own animal. Free includes up to 5 animals.

KEEP YOUR HERD CLOSE Search by name or tag and filter by species or status. See upcoming expected births and treatment withdrawal dates entered in your records. Open an animal for quick breeding, weight, treatment and pasture entries. Correct saved records and record multiple offspring linked to their mother.

RECORD IN THE FIELD Load your herd online first on each device. Viewed records remain available offline, and supported devices can save new animals, breedings, weights, treatments and moves for synchronization when connected. Pending entries are clearly marked. Editing, deleting, photos, account access and purchases require a connection. Keep the app signed in until pending entries sync; clearing device storage or uninstalling first can lose unsynced entries.

TRY HERDFLO PRO Eligible accounts can start one 14-day Pro trial without a payment method. It ends automatically with no charge unless you separately choose a subscription. Pro adds unlimited animals, a herd calendar, optional advance email alerts, growth reports and CSV exports. Your saved records remain available on Free after the trial.

YOUR RECORDS STAY YOURS Download a JSON record backup on every plan. Import a supported backup to add records without replacing your current herd. Photo files are not included or restored; save originals and reattach them separately.

SUBSCRIPTIONS New Pro purchases are monthly or annual subscriptions that renew automatically until canceled. See the current price and terms in the purchase screen. Manage or cancel subscriptions in the store where you purchased them. Existing lifetime purchases remain supported through Restore purchases.

Due dates and growth projections are estimates. Treatment withdrawal dates use the information you enter. Follow the product label and your veterinarian's instructions; HerdFlo does not provide veterinary advice.

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