Precipitation Rate Calculator
Calculate how many inches of water per hour your sprinkler heads apply based on flow rate and spacing configuration.
Precipitation Rate (PR) Calculator
Calculates the depth of water applied over an area in inches per hour.
Calculated Rate
1.44
inches/hour
(96.3 × 1.5) / (10 × 10.00)
Match this rate to your soil's absorption capacity to prevent runoff.
Why This Matters
The Precipitation Rate tells you how quickly your system applies water. If this rate is faster than your soil can absorb (e.g., on clay soil or a slope), you get runoff and wasted water. Matching your PR to the soil type is key to efficiency.