Livestock due date calculator
Enter the mating or joining date to see when calving, lambing, kidding, farrowing or foaling is due - and add it to your phone's calendar.
Calving due about
Sun, 25 Jul 2027 in 40 weeks
Average of 283 days for cows and heifers.
- Mated / joined
- Thu, 15 Oct 2026
- Watch from
- Wed, 21 Jul 2027
- Average due date
- Sun, 25 Jul 2027
- Usual range ends
- Sun, 1 Aug 2027
Planning in Fiji
The usual birth window falls in Fiji’s cyclone season (1 November to 30 April). Have dry shelter, feed and water ready for mothers and newborns before the season starts, and keep your vet’s number handy.
The usual birth window is outside Fiji’s cyclone season (1 November to 30 April), in the cooler, drier months.
Public holidays in the birth window: . Vets and farm suppliers may be closed, so stock up beforehand.
Farm cyclone planAverage gestation lengths
| Animal | Birth is called | Average | Usual range |
|---|---|---|---|
| Cattle (cows and heifers) | Calving | 283 days | 279–290 days |
| Sheep (ewes) | Lambing | 147 days | 142–152 days |
| Goats (does) | Kidding | 150 days | 145–155 days |
| Pigs (sows and gilts) | Farrowing | 114 days | 111–117 days |
| Horses (mares) | Foaling | 340 days | 320–365 days |
These are general averages. Breed, age, season, twins and litter size all move the real date, so keep an eye on your animals from the “watch from” date and ask your vet about anything unusual. The calculator runs in your browser; the calendar file is made from the dates only and nothing is stored. Public holidays come from our Fiji public holidays list. Words like joining, weaner or heifer explained in the farm words glossary.
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