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Calcimator

Irrigation Schedule Calculator

Plan your garden watering schedule based on plant type, soil, climate, and sun exposure. Get gallons per week, session duration, and cost estimates.

Inputs

sq ft

Results

Gallons per Week

224.3 gal

Weekly Water Depth1.8 in
Watering Sessions / Week3
Gallons per Session74.8 gal
Minutes (Garden Hose)8.3 min
Minutes (Sprinkler)24.9 min
Minutes (Drip System)149.5 min
Monthly Water Usage971 gal
Est. Monthly Water Cost$6.49

Gallons per Week

224.3 gal

How to Use This Calculator
  1. Start by filling in the input fields below. Results update instantly as you type, so you can experiment with different values to see how they affect the outcome.
  2. Plant Type — Select the primary type of plants you are watering. Choose from: Leafy Greens (lettuce, spinach), Fruiting Vegetables (tomatoes, peppers), Root Vegetables (carrots, potatoes), Herbs (basil, cilantro), Flowers / Ornamentals, Lawn / Turf Grass. default: 2.
  3. Soil Type — Your garden soil type. Sandy drains fast; clay retains moisture. Choose from: Sandy, Loam (ideal), Clay, Silt. default: 2.
  4. Sun Exposure — Hours of direct sunlight your garden receives per day. Choose from: Full Sun (6+ hours), Partial Sun (4-6 hours), Shade (< 4 hours). default: 1.
  5. Climate Zone — Your regional climate affects evaporation and watering needs. Choose from: Cool / Maritime, Temperate, Hot / Arid, Hot / Humid. default: 2.
  6. Garden Area — Total area to irrigate in square feet. Accepts values from 10 sq ft to 50,000 sq ft (default: 200 sq ft).
  7. Once all inputs are set, review your results in the Results panel. Here's what each output means:
  8. Gallons per Week — shown as a numeric value. This is the primary result of this calculator.
  9. Weekly Water Depth — shown as a numeric value.
  10. Watering Sessions / Week — shown as a numeric value.
  11. Gallons per Session — shown as a numeric value.
  12. Minutes (Garden Hose) — shown as a numeric value.
  13. Minutes (Sprinkler) — shown as a numeric value.
  14. Minutes (Drip System) — shown as a numeric value.
  15. Monthly Water Usage — shown as a numeric value.
  16. Est. Monthly Water Cost — shown as a dollar amount.
  17. Explore the related calculators below if you need deeper analysis or want to approach this topic from a different angle.
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