Rainwater Calculator

Calculate your potential rainwater collection and storage needs

Enter Your Details

Measure the horizontal area of your roof
Average annual rainfall in your area
Estimated daily water needs for irrigation

Your Results

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Liters Annual Collection Potential
0
Recommended Tank Size (Liters)
0
Days of Water Supply
€0
Estimated Annual Savings

These calculations are estimates based on typical efficiency rates. Actual results may vary based on system design and local conditions.

Understanding Your Results

The calculator provides estimates based on standard rainwater harvesting efficiency rates:

  • Collection Potential: Assumes 75% capture efficiency from your roof area
  • Tank Size: Recommended capacity for 45-60 days of storage
  • Days of Supply: How long collected water can meet your daily needs
  • Savings: Based on average water costs of €2 per cubic meter

Need Expert Guidance?

Contact us for personalized system design and installation advice

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