Gestation Calculators
Gestation Calculators
Below are a range of simple and free to use gestation calculators (due date calculators) for common animals found on farms.
Simply click on the joining (mating) date on the calendar or start of incubation in the case of birds and the approximate due date will be displayed.
Use this sheep or goat gestation calculator (due date calculator) to work out the due date of lambs or kids.
Based on a 150 day gestation period however this can vary from 144 days to 156 days for sheep and from 146 days to 152 days for goats.
Date of Joining
Use this cattle gestation calculator (due date calculator) to work out the due date of calves.
Based on a 283 day gestation period. This can vary from 273 days to 290 days
Date of Joining
Use this gestation calculator for pigs (due date calculator) to work out the due date of piglets.
Based on a 114 day gestation period however this can vary from from 110 days to 118 days.
Date of Joining
Use this gestation calculator for alpacas (due date calculator) to work out the due date of cria.
Based on a 345 day gestation period however this can vary from 315 days to 370 days.
Date of Joining
Use this gestation calculator for horses (due date calculator) to work out the due date of ponies.
Based on a 345 day gestation period however this can vary from 320 days to 355 days.
Date of Joining
Use this gestation calculator for llamas (due date calculator) to work out the due date of cria.
Based on a 344 day gestation period however this can vary from 330 days to 350 days.
Date of Joining
Use this gestation calculator for red deer (due date calculator) to work out the due date of fawn.
Based on a 233 day gestation period however this can vary from 226 days to 242 days.
Date of Joining
Use this gestation calculator for fallow deer (due date calculator) to work out the due date of fawn.
Based on a 229 day gestation period however this can vary from 226 days to 242 days.
Date of Joining
Use this gestation calculator for dogs (due date calculator) to work out the due date of pups.
Based on a 63 day gestation period however this can vary from 58 days to 68 days.
Date of Joining
Use this gestation calculator for cats (due date calculator) to work out the due date of kittens.
Based on a 60 day gestation period however this can vary from 58 days to 67 days.
Date of Joining
Use this gestation calculator for rabbits (due date calculator) to work out the due date of kits.
Based on a 28 day gestation period however this can vary from 27 days to 33 days whilst a Tapeti rabbit can have a gestation period of up to 42 days.
Date of Joining
Use this gestation calculator for hens (chooks or chickens) to work out the due date of chicks.
Based on a 21 day incubation period however this can vary from 19 days to 24 days.
Start of Incubation
Use this gestation calculator for ducks to work out the due date of ducklings.
Based on a 28 day incubation period however this can vary from 28 days to 32 days.
Start of Incubation
Use this gestation calculator for geese to work out the due date of goslings.
Based on a 28 day incubation period however this can vary from 27 days to 35 days.
Start of Incubation
Use this gestation calculator for turkeys to work out the due date of poults.
Based on a 28 day incubation period however this can vary from 24 days to 30 days.
Start of Incubation
Use this gestation calculator for Guinea Fowl to work out the due date of keets.
Based on a 28 day incubation period however this can vary from 26 days to 28 days.
Start of Incubation
