Garden Sprinkler Array GPM calculator

Sprinkler Booster Pump Planner

Planning estimator to determine whether a booster pump is needed to achieve target sprinkler pressure. Uses conservative friction assumptions. Always verify with pump curves and nameplate data.

Number of Sprinklers
Flow per Sprinkler (GPM)
Desired Pressure at Each Sprinkler (PSI)
Mainline Pipe Size
Total Pipe Length (feet)
Elevation Change (feet uphill)
Available Source Pressure (PSI)

Watts to Horsepower & Current Calculator

Converts electrical power to mechanical horsepower and estimates running current based on voltage and phase. Planning estimates only.

Input Power (Watts)
Voltage
Phase
Power Factor (optional)
Typical motors: 0.80–0.90

⚙️ Planning tool by Hatchi Seeds & Garden

Courtesy of Hatchi Seed and Garden

Horsepower to Volts & Amps Calculator

Converts motor horsepower to electrical power and estimates running current. Planning estimates only. Always verify motor nameplate data.

Motor Horsepower (HP)
Voltage
Phase
Motor Efficiency (%)
Typical: 85–95%

Power Factor
Typical induction motors: 0.80–0.90

⚙️ Planning tool by Hatchi Seeds & Garden