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Estimate crop yield per acre from harvested weight and field area. Calculate bushels, tons, and yield per hectare for grain and commodity crop reporting.
Calculate daily and annual livestock feed requirements by animal count and weight. Estimate hay, grain, and supplement pounds for cattle, horses, and sheep.
Calculate pesticide dilution rates for spray tanks. Enter product label rate, tank size, and concentration to get ounces or mL per gallon mix.
One acre = 43,560 square feet. Measure longest straight dimensions or use average width on irregular fields.
Acres = (Length ft × Width ft) ÷ 43,560International standard for yield reporting (t/ha) and EU farm programs.
Hectares = Acres × 0.4047Trapezoid and triangle sections sum for odd-shaped parcels. GPS boundary walk most accurate.
Divide into triangles/rectangles; sum areas; or use coordinate polygon methodUpdated: July 2026
Half-mile by quarter-mile = 80 acres. Standard quarter-quarter section reference for US farmland.
Split into 40 ac + 15 ac sections = 55 ac total grazeable area excluding wooded corner.
Exclude headlands and road from gross parcel area for accurate per-acre input rates.
Measure field and plot areas for seed, fertilizer, and chemical application planning. Enter length and width for rectangular fields, or sum multiple shapes, to get area in acres, hectares, and square feet.