Irrigation & Watering
Water it right: sprinkler-system cost from your zones and line items, irrigation zones and heads per zone from the available GPM, the weekly watering requirement and run time (gal = area × inches × 0.623), drip-line flow from the emitters, and rain-barrel / catchment harvest from your roof area and rainfall. Sizing values are labeled planning bands — measure your real available flow.
Planning estimate: this is a planning estimate from the numbers you enter — not a bid or a contract. Get itemized written quotes from licensed, insured landscapers/contractors and confirm measurements before you commit.
Sprinkler System CostEstimate what a sprinkler system costs from the number of zones and the per-zone price you were quoted, plus extra line items and a contingency buffer.Irrigation ZonesWork out how many sprinkler heads each zone can run and how many irrigation zones you need, from your available flow in GPM and each head's flow rate.Watering NeedsFind how many gallons your lawn needs each week and how long to run the sprinklers, from the area, the inches of water per week and your system flow in GPM.Drip Line FlowSize a drip zone: add up the total flow in GPH and GPM from the number of emitters and each emitter's rate, and track the length of drip tubing on the run.Rain Barrel HarvestEstimate how many gallons a rain barrel or cistern captures from a roof, using the catchment area, the rainfall in inches and a labeled collection efficiency.
Every Irrigation & Watering tool is calculated server-side — visible immediately — with its formula, a worked example and a reference table, and works on the quantities you measure and the prices you enter. Background reading is in the guides.