Easily calculate the ideal water, substrate, and fish for your aquarium. Maintain optimal pH levels with a bicarbonate calculator and never miss a task with customizable reminders for feeding and cleaning.





37+ similar apps compared and reviewed
Whether you want more options like FishTankCalculator or a completely different take on the same concept, our curated list of 37+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.





Easily calculate the ideal water, substrate, and fish for your aquarium. Maintain optimal pH levels with a bicarbonate calculator and never miss a task with customizable reminders for feeding and cleaning.




Estimate the total and filled volumes of various tank shapes, including rectangular, cylindrical, and those with conical or spherical bottoms. Calculates liquid volume and weight based on filling level, providing an estimate for oil and water tanks.








Calculate bending allowance, deduction, and required plate size for sheet metal fabrication. Supports both millimeters and inches, and includes material k-factor and decimal fraction charts for quick reference. Ideal for daily fabrication tasks.


Easily calculate horizontal and vertical dimensions for diagonal railroad model track layouts. Input track length and angle to get precise measurements for combining different track pieces. Avoid guesswork and ensure accurate model railway construction.






Easily calculate the volume of various shapes in cubic yards for landscaping materials, construction, or waste disposal. Get an estimated cost for your materials based on price per unit.


Estimate your electric vehicle's effective battery size by inputting the energy consumed during charging. This utility helps understand battery capacity based on real-world usage.


Easily calculate area, perimeter, volume, and weight for over 170 geometric shapes. Input measurements, select materials, and choose units for precise results. Includes shape definitions and formulas.