Water Tank Capacity Calculator

Calculate tank capacity from dimensions OR dimensions from required capacity

Input Parameters

Metric System

Imperial System

Find Capacity

Find Dimensions

Rectangular

Cylindrical

Spherical

Length (meters)

Width (meters)

Height (meters)

Radius (meters)

Height (meters)

Radius (meters)

Required Water Capacity (liters)

Fixed Length (meters)

Fixed Width (meters)

Width:Height Ratio (optional)

Fixed Radius (meters)

Radius:Height Ratio (optional)

For spherical tanks, only the radius is calculated from the required capacity.

Visualization

Rectangular tank: Volume = Length × Width × Height

Calculation Results

Total Capacity

3.600

Cubic Meters (m³)

Converted Units

Liters

3600.00

L

US Gallons

951.02

gal

Imperial Gallons

791.89

gal

Cubic Feet

127.13

ft³

Required Tank Dimensions

Length:2.00 m

Width:1.50 m

Height:1.20 m

Real-world Equivalent

This tank can hold about:

3600

2-liter soda bottles

Tip: 1 cubic meter = 1000 liters = 264.17 US gallons

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© 2025 DiyCivil-Calc | Water Tank Capacity Calculator | Structural Engineering Guide. Educational content based on established engineering principles. Always consult licensed professionals for actual structural design.

Note: Actual capacity may vary based on tank design and thickness of materials.