Aquarium Gravel & Substrate Calculator

Determine exactly how many 5lb or 20lb bags of gravel or aquasoil to buy for your tank size and bed depth.

Step 1

Select Aquarium Geometry

Step 2

Quick Size Preset

Length Inches

Width Inches

Height Inches

Substrate Bed Depth (Gravel / Sand)

Standard community tanks use 2 inches (5 cm) of gravel or aquasoil.

Rectangular Tank 30" x 12" x 12"

3D visual mockup updates dynamically to your selected tank shape.

Step 3 • Hydro Calculation Output

Water Volume

0 Gallons

(0 Liters)

Filled Tank Weight

0 lbs

(0 kg)

Gravel / Sand Needed

0 lbs

(0 kg)

Specs & Stocking

Filter GPH: 0 GPH

Heater Power: 0 Watts

Max Fish Length: 0 in