📏 Tank Dimensions
💡 How to Use This Cylindrical Tank Volume Calculator
This calculator helps you determine the exact capacity of any cylindrical tank, whether it's a water storage tank, fuel tank, silo, or pressure vessel. Simply follow these steps:
- Step 1: Enter the diameter (or radius) and height of your tank.
- Step 2: Select your measurement unit (Feet, Meters, Centimeters, or Inches).
- Step 3: Choose whether to input diameter or radius.
- Step 4: Optionally set the fill level percentage to calculate partial volume.
- Step 5: Click "Calculate Tank Volume" to see results in multiple units.
The calculator instantly converts between cubic feet, cubic meters, US gallons, and liters — no manual conversions needed!
📐 Cylindrical Tank Volume Formula
The volume of a cylindrical tank is calculated using the formula:
V = π × r² × h
Where:
- V = Volume of the tank
- π = Pi (approximately 3.14159)
- r = Radius of the tank (half the diameter)
- h = Height of the tank
If you have the diameter instead of radius, remember: r = D ÷ 2
Once you have the volume in cubic units, use these conversion factors:
| From | To | Multiply By |
|---|---|---|
| Cubic Feet (ft³) | US Gallons | 7.48052 |
| Cubic Feet (ft³) | Liters | 28.3168 |
| Cubic Meters (m³) | US Gallons | 264.172 |
| Cubic Meters (m³) | Liters | 1000 |
| Cubic Inches (in³) | US Gallons | 0.004329 |
| Cubic Centimeters (cm³) | Liters | 0.001 |
🏭 Common Applications
💧 Water Storage Tanks
Calculate the capacity of residential or commercial cylindrical water tanks. Cylindrical tanks are preferred for water storage because they distribute pressure evenly and are structurally efficient.
⛽ Fuel & Oil Tanks
Determine storage capacity for diesel, gasoline, or oil tanks. Many fuel stations use cylindrical underground storage tanks (USTs) that require accurate volume calculations for inventory management.
🌾 Agricultural Silos
Calculate grain storage capacity in cylindrical silos. Knowing the exact volume helps farmers plan harvest storage and manage inventory.
🏭 Industrial Pressure Vessels
Engineers use cylindrical tank calculations for designing boilers, reactors, and pressure vessels where round shapes provide optimal strength.
🏊 Swimming Pools
Round above-ground pools are common residential options. Calculate water volume for chemical treatment and heating requirements.
📏 Cylindrical Tank Sizing Guide
Here are common cylindrical tank sizes and their approximate capacities:
| Diameter (ft) | Height (ft) | Volume (ft³) | Gallons | Liters |
|---|---|---|---|---|
| 3 | 4 | 28.3 | 212 | 801 |
| 4 | 5 | 62.8 | 470 | 1,778 |
| 5 | 6 | 117.8 | 881 | 3,336 |
| 6 | 8 | 226.2 | 1,692 | 6,406 |
| 8 | 10 | 502.7 | 3,760 | 14,235 |
| 10 | 12 | 942.5 | 7,050 | 26,693 |
| 12 | 15 | 1,696.5 | 12,690 | 48,048 |