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Calculate the water volume of your aquarium based on its shape and dimensions.
Supports rectangular, bowfront, cylindrical, and hexagonal tanks.
Results displayed in both US gallons and liters.
Uses precise formulas for each shape including bowfront bonus volume.
Calculate how many fish your aquarium can safely hold. Based on tank volume, filtration, and fish size. Free tool.
Aquarium & FishkeepingCalculate the right heater wattage for your aquarium based on tank volume and temperature difference. Free tool.
Aquarium & FishkeepingCalculate CO2 levels in your planted aquarium from pH and KH readings. Optimize plant growth. Free tool.
Aquarium & FishkeepingCalculate fertilizer doses for planted aquariums. Supports EI dosing, PPS-Pro, and custom schedules. Free tool.
Aquarium & Fishkeeping