Tank Volume Calculator

Calculate full and partial tank volume for cylinders, rectangles, capsules, and more. Supports multiple tank shapes and unit conversions.

Tank Dimensions
mm
cm
m
in
ft
yd
Calculation Results
Total Tank Volume:
Filled Volume:
Fill Percentage:
Liters:
Cubic Meters:
US Gallons:
Imperial Gallons:
Cubic Feet:

Formulas & Calculations

Frequently Asked Questions

How do I measure tank dimensions accurately? +

For accurate measurements:

  • Measure the internal dimensions, not external
  • Use a measuring tape or ruler appropriate for the tank size
  • For cylindrical tanks, measure the diameter across the center
  • For irregular shapes, break down into regular components
Why might my calculated volume differ from manufacturer specifications? +

Several factors can cause discrepancies:

  • Manufacturers may include/exclude certain components (nozzles, fittings)
  • Wall thickness reduces internal volume
  • Tanks may not be perfectly geometric in shape
  • Measurement errors or rounding differences
Does wall thickness affect volume calculations? +

Yes, wall thickness reduces the internal volume of a tank. This calculator assumes perfect geometry and uses internal dimensions. For precise calculations, subtract wall thickness from external measurements or use internal measurements directly.

How accurate are the partial fill calculations? +

Partial fill calculations are mathematically precise for the idealized shapes. However, real-world factors like tank deformation, internal components, and measurement accuracy can affect actual volumes. For critical applications, physical verification is recommended.

Important Notes

Note: This calculator assumes perfect geometric shapes. Actual tank volumes may vary due to manufacturing tolerances, wall thickness, internal components, and other factors. For precise applications, consult manufacturer specifications or perform physical measurements.