Farm math, done in seconds.
Free calculators for homesteaders and small farms: due dates for goats, cattle, sheep, pigs, horses and rabbits, egg hatch dates, coop sizes, hay, feed and livestock weight. No sign-up, and they work on your phone.
Breeding & due dates8 calculators
Goat Gestation CalculatorKidding date, heat checks and a pre-kidding checklist.Cattle Gestation CalculatorBreed-adjusted calving date, heat checks and dry-off.Sheep Gestation CalculatorLambing date and window from ram-in / ram-out dates.Pig Gestation CalculatorFarrowing date with the 3-3-3 rule and heat checks.Mare Gestation CalculatorMare foaling date, ultrasound checks and foaling watch.Rabbit Gestation CalculatorKindling date, nest-box day and weaning date.Heat Cycle CalculatorNext heat dates and breeding-time tips.Breeding CalendarWhole-herd due dates on one printable list.
Chickens & poultry6 calculators
Egg Incubation CalculatorHatch date, candling and lockdown days for 11 birds.Chicken Coop Size CalculatorCoop and run square footage, roosts and nest boxes.Chicken Feed CalculatorFeed per month, bags per year and cost per dozen eggs.Egg Production Cost CalculatorLaying rate, eggs per year and cost per dozen.Chicken Age CalculatorAge in weeks, growth stage and expected laying date.Brooder Temperature ChartToday's brooder heat and the week-by-week schedule.
Weight & meat2 calculators
Pasture, feed & hay6 calculators
Hay CalculatorBales and tons for winter, with waste and cost.Stocking Rate CalculatorHow many animals your pasture can carry.Fence CalculatorPosts, wire and rolls for any pasture fence.Pearson Square CalculatorMix two feeds to hit a target protein %.Goat Feed CalculatorDaily hay and grain by weight and stage.Horse Feed CalculatorDaily hay and grain by weight and workload.
Guides17 quick answers
How Long Is a Goat Pregnant? Goat Gestation ExplainedGoats are pregnant for about 150 days (145–155). Gestation by breed, a month-by-month timeline,…How Long Are Cows Pregnant? Cattle Gestation by BreedCows are pregnant for about 283 days, just over 9 months. See gestation length by breed, what s…How Many Bales of Hay Does a Horse Need for Winter?A 1,000 lb horse eats about 20 lb of hay a day, roughly 70 small square bales over a 5-month wi…How Much Meat Do You Get From a Half Cow?A half cow usually gives about 200–250 lb of packaged beef. Live weight vs hanging weight vs ta…How Long Do Chicken Eggs Take to Hatch? Day-by-Day GuideChicken eggs hatch in about 21 days at 99.5°F. A day-by-day incubation timeline with candling, …How Long Do Duck Eggs Take to Hatch? Pekin and Muscovy TimelinesPekin duck eggs hatch in about 28 days and Muscovy eggs in up to 35. Lockdown day, humidity cha…How Long Do Quail Eggs Take to Hatch? Coturnix TimelineCoturnix quail eggs hatch in 17 to 18 days. Lockdown on day 14, candling dates and the short ti…How Long Is a Sheep Pregnant? Ewe Gestation in Days and MonthsA ewe is pregnant for about 147 days, close to 5 months. Gestation by breed, what moves the dat…How Long Is a Pig Pregnant? The 3-3-3 Rule ExplainedA pig (sow) is pregnant for about 114 days, remembered as the 3-3-3 rule: 3 months, 3 weeks and…How Long Is a Horse Pregnant? Mare Gestation in Days and MonthsA mare is pregnant for about 340 days, roughly 11 months, with a normal range of 320-370 days. …How Long Is a Rabbit Pregnant? Doe Gestation ExplainedA rabbit doe is pregnant for about 31 days, one of the shortest gestations of any farm animal. …How Much Space Does a Chicken Need? Coop, Run & Roost SizesA standard chicken needs about 4 sq ft of coop floor and 10 sq ft of run. Space per bird for ba…How Much Does a Chicken Eat per Day? Feed Amounts & CostsA laying hen eats about 1/4 lb (4 oz) of feed a day, about 7.6 lb a month. Daily feed for chick…How Many Acres per Cow? Stocking Rates by Pasture TypeOne cow needs about 1.5–3 acres of good pasture for a 6-month grazing season, and 10–20+ acres …How Many Goats per Acre? Stocking Rates for Pasture & BrushGood pasture carries about 2–4 goats per acre for a 6-month grazing season, and fewer on dry or…How to Weigh a Goat Without a Scale (Tape Method & Chart)Measure heart girth and body length in inches, then use girth × girth × length ÷ 300 to get a g…How Much Hay Does a Cow Eat per Day? (By Weight, With Waste)A cow eats about 2.5% of her body weight in hay a day: about 30 lb for a 1,200 lb cow. Daily ha…