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Calculate field area in acres and hectares from dimensions or GPS coordinates. Estimate planted acreage for farm planning, inputs, and yield reporting.
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 pesticide dilution rates for spray tanks. Enter product label rate, tank size, and concentration to get ounces or mL per gallon mix.
One acre-inch = 27,154 gallons. Standard unit for irrigation water measurement.
Acre-Inches = Acres × Application Depth (inches)Multiply acre-inches by 27,154 gal/ac-in for total volume required.
Gallons = Acres × Depth (in) × 27,154Divide total volume by system flow rate for runtime. Account for pump and system efficiency losses.
Hours = Gallons ÷ (GPM × 60)Updated: July 2026
100 acre-inches = 2,715,400 gallons. Center pivot at 1,000 GPM runs ~45 hours for 1″ application.
12 ac × 0.5″ = 6 ac-in = 162,924 gal/week. Match to ET replacement from evapotranspiration data.
25 ac pasture: 25 × 0.75 × 27,154 = 508,638 gal. Verify well yield supports multi-day pumping.
Estimate water volume needed for an irrigation event based on field area and target application depth. Enter acres and inches of water to apply for gallons, cubic feet, and pumping time at known flow rate.