5 calculators in this category
- Stocking Rate & Animal Unit Month (AUM) CalculatorUSDA-NRCS National Range and Pasture Handbook animal unit conventionStocking rate is a forage budget, not a rule of thumb, and this calculator builds it from both ends. Enter your herd's size…
- Pasture Grazing Days CalculatorUSDA-NRCS Conservation Practice Standard 528, Prescribed GrazingMove the herd too late and you graze the regrowth; move it too early and you leave forage that goes stemmy before you return…
- Cattle Weight Calculator (Heart Girth Tape)Girth-and-length rule (Schaeffer's formula)Wrap a tape around the animal just behind the front legs, measure from the point of the shoulder to the pin bone, and this…
- Horse Weight & Feed Requirement CalculatorCarroll & Huntington girth-length equation; NRC Nutrient Requirements of Horses (6th rev. ed.)Two measurements — heart girth and body length — estimate a horse's weight closely enough for feeding, conditioning and most…
- Livestock Gestation & Due Date CalculatorEnter the service date and this calculator projects the due date for cattle, horses, sheep, goats, pigs and camelids, using…
Which one do you need?
- Stocking Rate & Animal Unit Month (AUM) Calculator
- Convert herd size and weight into animal units and AUMs, then compare forage demand with pasture production to find acres needed and sustainable carrying capacity.
- Pasture Grazing Days Calculator
- Work out how many days a herd can graze a paddock from available dry matter and utilisation, and size the paddock for a target grazing period.
- Cattle Weight Calculator (Heart Girth Tape)
- Estimate cattle live weight from a heart girth and body length measurement, then get hundredweight, dressed carcass weight and market value with no scale.
- Horse Weight & Feed Requirement Calculator
- Estimate a horse or pony's body weight from heart girth and body length, then convert it into daily hay, dry matter intake and a dosing weight.
- Livestock Gestation & Due Date Calculator
- Project calving, foaling, lambing, kidding or farrowing dates from the breeding date, with the normal range, days to go and key management dates.