Browse by animal
Pick an animal to see its calculators: Gestation, breeding, weight, feed, age and more. Each paired with a plain-language, sourced guide.
Farm & livestock
Cattle →
Gestation, calving, breeding, weight
Horses →
Foaling, gestation, weight, feed
Goats →
Gestation, kidding, heat cycle
Sheep →
Gestation, lambing, breeding
Pigs →
Farrowing, gestation, weight
Rabbits →
Gestation, breeding, kindling
Poultry →
Egg incubation, feed
Pets
Most popular calculators
The tools people reach for most.
Why BarnCalc
Science-backed
Every figure is cross-checked against university extensions, breed associations and veterinary references - and cited.
Made for real animal raisers
Practical tools for farmers, breeders, homesteaders and pet owners - clear answers, no fluff.
Free & easy to use
Open, mobile-friendly, and instant. Every calculator comes with a guide and a printable chart.