Gallons Per Square Foot Calculator

Determine the volume of liquid required for a specific area and depth.

Coverage Dimensions

Total Area (Square Feet)

Liquid Depth

Unit

Volume Estimate

Enter area and depth to estimate volume

Overview

This calculator helps you determine how many gallons of liquid (like water, paint, or epoxy) are needed to fill or cover a specific area at a given depth. It's particularly useful for swimming pools, pond liners, and estimating large-scale coating applications.

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Pro Tips

For pond liners, include extra depth for the overlaps at the edges.
When estimating paint or epoxy, always account for some waste and surface absorption.
1 inch of depth over 1,000 square feet requires approximately 623 gallons.

Fun Facts

"One cubic foot of space can hold approximately 7.48 gallons of liquid."
"Water weighs about 8.34 pounds per gallon at standard temperature."
"In construction, the term 'coverage rate' often refers to how many square feet a gallon will cover at a specific thickness."

Formula: Gallons = Area (sq ft) × Depth (ft) × 7.481

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