Free Sheep Farming Calculators
Practical calculators for lambing dates, sheep weight estimates, daily gain, target weight, feed cost, feed conversion, stocking rate, startup cost and lamb profitability.
These tools are designed for quick field estimates. For connected farm management across the whole flock, check out the free HerdDeck sample farm.
1. Breeding & Lambing
Lambing Date Calculator
Calculate the estimated lambing date based on breeding dates and expected gestation length.
Best for: Planning lambing barn prep and birth windows.
Open calculator →Lambing Calendar Generator
Generate a complete timeline from pre-breeding prep to weaning based on your target lambing start date.
Best for: Season planning and task scheduling.
Open calendar →2. Weight & Growth
Sheep Weight Calculator
Estimate the weight of a sheep using heart girth and body length measurements.
Best for: quick weight estimates when a scale is not available.
Open calculator →Average Daily Gain Calculator
Calculate the average daily gain (ADG) of a lamb or mature sheep between two weigh-ins.
Best for: Tracking growth performance.
Open calculator →Target Weight Calculator
Determine how many days it will take a lamb to reach a target weight based on its current ADG.
Best for: Sale and finishing predictions.
Open calculator →3. Feed & Profit
Feed Cost Calculator
Calculate total feed cost and cost per head per day for a specific feeding period.
Best for: Budgeting feed expenses.
Open calculator →Feed Conversion Ratio Calculator
Calculate the FCR to see how efficiently lambs are converting feed into weight gain.
Best for: Evaluating ration efficiency.
Open calculator →Lamb Profit Calculator
Estimate the potential profit per lamb by calculating feed, health, and purchase costs against sale value.
Best for: Margin estimates before finishing.
Open calculator →4. Pasture & Capacity
Stocking Rate Calculator
Determine how many sheep a pasture can support based on land area and forage availability.
Best for: Pasture planning and avoiding overgrazing.
Open calculator →Livestock Unit Calculator
Convert your sheep flock into standard Livestock Units (LU) or Animal Unit Equivalents (AUE).
Best for: Compliance, mixed grazing and subsidy limits.
Open calculator →5. Farm Planning & Startup
Sheep Farm Startup Cost Calculator
Estimate the capital required to start a sheep farm based on land, housing, animals and equipment.
Best for: Business planning and budgeting.
Open calculator →