GALLONS PER WEEK

Garden Water Calculator

Estimate the weekly water volume needed to deliver a chosen depth across a bed or plot.

FREE TOOLLocal
calculation
No garden data uploaded
01

Enter your measurements

Updates live
02

Planning result

Weekly water124.6 gal
Liters471.66 L
Per square foot0.62 gal
Target depth1 in

Use this as a planning estimate. Verify product labels, local conditions and supplier packaging before buying or applying materials.

THE FORMULA

How the result is calculated

Gallons = area in square feet × water depth in inches × 0.623. One inch over one square foot equals about 0.623 gallons.

SproutScale preserves full precision while calculating and rounds only the displayed result or the final purchasable unit.

FIELD NOTES

Before you act

  • Subtract useful rainfall from the weekly target.
  • Water needs change with soil, wind, heat and crop stage.
  • Deep, less frequent watering often encourages stronger roots.
QUICK ANSWERS

Garden water FAQ

How many gallons is 1 inch on 100 square feet?

About 62.3 gallons, assuming even application and no runoff.

Does every garden need one inch per week?

No. One inch is a common planning reference, not a universal prescription.