Tank Volume Calculator

Calculate the liquid storage capacity of rectangular, cylindrical, and capsule-shaped tanks in multiple units.

Tank Geometry

Unit System

Structural Shape

Diameter

Height

Storage Capacity

Plotting capacity?

Select your tank profile and enter internal dimensions to determine its total holding volume.

Overview

Sizing storage tanks correctly is vital for industrial process planning, rainwater harvesting, and chemical storage. This tool calculates the total internal volume for common stationary and transport tank shapes. For horizontal tanks with rounded ends (capsules), it combines cylindrical volume with spherical hemispherical offsets to provide an accurate total capacity estimate.

💡

Pro Tips

Always measure the <strong>internal</strong> dimensions of the tank; wall thickness (especially for plastic tanks) can reduce volume by 2-5%.
In metric regions, 1 cubic meter ($1m^3$) is exactly equal to 1,000 liters.
Consider a 10% 'vapor space' or 'headroom' at the top of the tank to prevent industrial overflow during thermal expansion.

Fun Facts

"1 US Gallon is equal to exactly 231 cubic inches (approx 3.785 liters)."
"Liquid weight is a major structural concern; a full 1,000-gallon water tank weighs over 8,300 lbs (3,760 kg)."
"For horizontal cylinders, the 'partial fill' volume is non-linear and much harder to calculate than total capacity."

Formula: Volume (Cylinder) = π × r² × Height; Volume (Rectangle) = L × W × H

Used with this

Similar tools that might be useful

AC Room Size Calculator

Find the perfect AC unit size based on room dimensions and environmental factors.

AC Tonnage Calculator

Calculate air conditioning capacity in tons and BTU for your home with precision.

Air Changes per Hour (ACH)

Measure ventilation effectiveness by calculating room air replacement rates.