HerdFlo: Gestation Calculator

Plan your breeding season with confidence. HerdFlo turns a breeding date into a due date for 28 livestock species - and keeps your whole herd book in your pocket.

GESTATION CALCULATOR
- 28 species: cattle, goats, sheep, pigs, horses, rabbits, chickens, and 21 more.
- Breed-adjusted: 60+ breed presets fine-tune gestation length so the date fits your animals, not a generic average.
- Reverse planning: pick a target birth window and HerdFlo tells you when to breed.
- Custom gestation length for the cases that don't fit a preset.
- A typical due-date range, not just a single day.
- Works fully offline. No signup needed to run the numbers.

PLAN AROUND THE DATE
- A management timeline from the due date - pregnancy-check windows, dry-off, pre-calving prep - framed as planning windows to discuss with your veterinarian.
- Add the due date to your calendar with one tap (.ics export).
- Printable gestation charts for the barn wall or the truck.

MY HERD - YOUR RECORD BOOK
- Animals: name, species, breed, photos.
- Breeding-to-calving tracking with birth weight and calving ease.
- Weights over time for every animal.
- Treatment log with withdrawal dates.
- Pasture moves and rotation history.
- Photos on every animal and event.
- Calving-interval analytics.
- CSV import and export.

BUILT FOR REAL FARMS
- Offline-first calculator and records.
- Fast at the chute.
- Export your data whenever you want.

Free to track up to 5 animals. The gestation calculator is free for every species.

HerdFlo is a planning and record-keeping tool. It does not provide veterinary advice - always consult your veterinarian for animal-health decisions.

Questions or feedback? support@farmsflo.com