Aquarium Volume Calculator – Accurate Water Capacity Estimator

Aquarium Calculator Calculate your aquarium’s volume, stocking level, heater size, and filtration needs. Tank Shape: RectangularCylindricalBowfrontHexagonal Length (cm): Width (cm): Height (cm): Diameter (cm): Height (cm): Water Type: FreshwaterSaltwaterReef Tank Number of Fish: Average Adult Fish Size (cm): Calculate Aquarium Parameters Aquarium Specifications Total Volume 0 liters Usable Volume 0 liters Stocking Level Your tank […]

Aquarium Calculator

Calculate your aquarium’s volume, stocking level, heater size, and filtration needs.

Aquarium Care Guidelines

  • Stocking Rule: 1 cm of fish per liter (freshwater) or 2 liters (saltwater)
  • Heater Size: 1-1.5 watts per liter for tropical tanks
  • Filtration: Filter should process 4-5x tank volume per hour
  • Water Changes: 10-25% weekly depending on bioload

Conversion Factors

Unit Conversion
1 gallon 3.785 liters
1 inch 2.54 cm
1 cubic cm 0.001 liters

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