Tank Size Calculator
Calculate tank volume for rectangular, cylindrical, or spherical tanks quickly and accurately. Perfect for water, fuel, or industrial storage.
How the calculator works
Select the tank shape and enter the relevant dimensions. The calculator uses standard geometric formulas to provide an accurate volume in liters or gallons.
Tank Shapes
- Rectangular / Cuboidal: Volume = Length × Width × Height
- Cylindrical: Volume = π × Radius² × Height
- Spherical: Volume = (4/3) × π × Radius³
Tip: Ensure all measurements are in the same units and consider usable capacity when filling.
Disclaimer: Calculator provides estimates. For critical applications, verify measurements or consult a professional.Why Tank Size Matters
Selecting the correct tank size ensures that your tank meets your needs without wasting space or resources. An undersized tank may run out of capacity too quickly, causing inconvenience or operational problems. An oversized tank may occupy unnecessary space and cost more than needed. By using a calculator, you get an accurate estimate and can plan your storage effectively.
How the Tank Size Calculator Works
The calculator works by using the basic geometric formulas for common tank shapes:
1. Rectangular / Cuboidal Tanks
The volume is calculated using the formula:
Volume = Length × Width × Height
This provides an exact cubic measurement, which can be converted to liters or gallons.
2. Cylindrical Tanks
For vertical or horizontal cylindrical tanks:
Volume = π × Radius² × Height
This formula accounts for the circular base and height to give an accurate volume.
3. Spherical Tanks
For spherical tanks:
Volume = (4/3) × π × Radius³
This ensures precise capacity calculation for tanks like pressure vessels or spherical water tanks.
Factors to Consider
- Measurement Units: Ensure all dimensions are in the same unit (cm, meters, inches, or feet).
- Usable Capacity: Some tanks have a maximum fill line lower than the physical height; factor this in.
- Material and Space: Ensure the chosen size fits your available space and structural support.
Benefits of Using a Tank Size Calculator
- Provides accurate volume calculations for different shapes
- Converts volumes into liters, gallons, or cubic meters
- Saves time compared to manual calculations
- Helps avoid over- or under-sized tanks
Final Tips
While the calculator provides reliable estimates, always double-check measurements and consider extra capacity for operational flexibility. For critical applications like fuel storage, industrial fluids, or large aquariums, consult a professional to ensure safety and compliance.
Using the Tank Size Calculator ensures precise planning, efficient use of space, and cost-effective storage solutions.