Gallons per Square Foot Calculator

Gallons per ft²

Calculate water depth and volume for any area.
Square footage of surface
Total volume of water
Gallons per ft² 0.00 gal/ft²
0.00 in 0.00 gal
Water Depth 0.00 inches
Volume 0.00 ft³
Liters 0.00 L
1 inch of water over 1 ft² = 0.623 gallons
1 gal = 231 in³ · 1 ft³ = 7.48052 gal Depth = (gallons × 231) / (area × 144)