Drip Irrigation Calculator — Pipe & Dripper Layout
Calculate dripper spacing, flow rates, and pipe lengths for drip systems.
How We Calculate This
Total pipe = Row length × Number of rows. Drippers per row = Row length ÷ Spacing + 1.
Total system flow = Drippers × Flow rate per dripper.
Run time is calculated to deliver approximately 4 litres per m² per session.
Frequently Asked Questions
Related Calculators
Water Butt Size Calculator
Calculate the ideal water butt size based on your roof area and rainfall.
Irrigation Timer Calculator
Work out watering duration and frequency for your irrigation system.
Sprinkler Coverage Calculator
Work out sprinkler placement and overlap for even lawn coverage.
Watering Can Calculator
Calculate how many watering cans you need for your garden beds.
Hose Flow Rate Calculator
Estimate water flow rate based on hose diameter and pressure.
Last updated: February 2026
All calculations are estimates based on standard gardening guidelines. Results may vary with soil conditions, climate, and plant varieties.