About Irrigation Runtime & System Capacity Calculator
Comprehensive agricultural irrigation engineering calculator. Computes drip emitter irrigation depth, sprinkler system precipitation rate, daily run-time schedule, total water volume in cubic meters and gallons, and minimum required pump motor horsepower (HP & kW).
Key Capabilities & Features
- Support for Drip Irrigation, Overhead Sprinklers, Center Pivot, and Furrow/Surface systems
- Standard ASABE sprinkler precipitation formula: P = (96.3 * Q) / (Spacing_row * Spacing_lateral)
- Total daily water volume in both Cubic Meters (m³) and US Gallons
- Irrigation pump sizing engine factoring dynamic head (TDH in meters/feet) and pump mechanical efficiency
How to Use Irrigation Runtime & System Capacity Calculator
Select Irrigation Method
Choose Drip Irrigation, Overhead Sprinklers, Center Pivot, or Furrow.
Enter Flow Rate & Spacing
Input emitter flow rate (L/h or GPH) or sprinkler nozzle discharge (GPM or L/min) and layout spacing.
Specify Water Depth Target & Head
Set desired daily irrigation application depth (mm or inches) and total pump dynamic head.
View Runtime & Pump Size
Get daily runtime hours, precipitation rate, total field water volume, and recommended pump horsepower (HP).
Privacy & In-Browser Execution Guarantee
Irrigation system layouts, water consumption volumes, and pump configurations are processed 100% client-side.
Frequently Asked Questions
What is Total Dynamic Head (TDH) in farm pump sizing?
Total Dynamic Head is the total equivalent height of water the pump must overcome, including vertical elevation lift, friction loss in pipes and fittings, and operating nozzle pressure.