Calculate cylinder liquid capacity in liters from dimensions
Last updated: April 2026 | By Patchworkr Team
V (cm³) = π × r² × h
Where r and h are in centimeters
V (L) = V (cm³) ÷ 1000
1 liter = 1000 cubic centimeters
1 cm = 0.01 m = 0.393701 inches
1 L = 1000 mL = 1000 cm³ = 0.264172 gal
Calculating cylinder volume in liters is essential for determining the liquid capacity of tanks, containers, pipes, and vessels. A liter is a metric unit of volume equal to 1,000 cubic centimeters or 0.001 cubic meters. It's the standard unit for measuring liquid volumes worldwide, used for everything from beverage bottles to industrial tanks.
The liter is particularly convenient because of its direct relationship to the metric system: one liter of water has a mass of approximately one kilogram at 4°C. This makes calculations involving water and other liquids straightforward. For cylindrical containers, the volume in liters tells you exactly how much liquid the cylinder can hold when completely full.
Common applications include water tanks, fuel tanks, chemical storage vessels, pressure vessels, hydraulic cylinders, and any cylindrical container used for liquid storage or transport. Understanding the liter capacity helps with inventory management, shipping calculations, chemical mixing ratios, and ensuring adequate storage capacity for various industrial and commercial applications.
Step 1: Select your measurement unit. Choose centimeters for smaller containers, meters for large tanks, or inches if working with imperial measurements. All calculations are converted to liters automatically.
Step 2: Choose your input method. Select "Use Radius" if you know the distance from center to edge, or "Use Diameter" if you know the full width across the circle.
Step 3: Enter the radius or diameter and the height of your cylinder. Make sure both measurements use the same unit selected in Step 1.
Technical Details: The calculator first converts all measurements to centimeters, then calculates volume using V = πr²h in cubic centimeters. Since 1 liter = 1,000 cm³, the result is divided by 1,000 to get liters. The calculator also provides conversions to milliliters (same as cm³), cubic meters, gallons, cubic feet, and cubic inches for versatility across different measurement systems.
Scenario: A brewery needs to size a cylindrical fermentation tank for a new production line. The tank has an internal diameter of 150 cm and a height of 250 cm.
Radius: 75 cm
Volume: 4,417.86 liters (4.42 m³)
Capacity: 1,167 US gallons
Batch size: Can ferment approximately 4,400 liters per batch
Weight when full: Approximately 4,400 kg (water/beer density ≈ 1 kg/L)
Knowing the exact capacity in liters allows the brewery to plan batch sizes, calculate ingredient quantities, determine cooling requirements, schedule production runs, and ensure proper tank sizing for their target production volume. The liter measurement is standard in the beverage industry worldwide.
There are exactly 1,000 liters in one cubic meter. This is by definition: 1 m³ = 1,000 L. Since 1 meter = 100 cm, then 1 m³ = 1,000,000 cm³, and 1 L = 1,000 cm³.
No. 1 liter = 1,000 milliliters. A milliliter is 1/1000 of a liter. Milliliters and cubic centimeters are equivalent: 1 mL = 1 cm³. Use mL for small volumes, liters for larger ones.
For external measurement, use calipers or a measuring tape across the widest part. For internal diameter of tanks, measure the inside width. Diameter is the full distance across through the center.
This calculator assumes the cylinder is full. For partially filled vertical cylinders, multiply the result by the fill percentage. For horizontal cylinders partially filled, use specialized tank calculators.
Water weighs 1 kg per liter at 4°C. Other liquids vary: milk ≈ 1.03 kg/L, gasoline ≈ 0.75 kg/L, oil ≈ 0.9 kg/L, ethanol ≈ 0.79 kg/L. Check specific gravity for exact values.
Volume is the 3D space the cylinder occupies. Capacity is how much liquid it can hold (usually slightly less due to walls, ullage space, etc.). For thin-walled containers, they're nearly equal.
For internal capacity, use the internal diameter (inside measurement). For total volume including walls, use external diameter. The difference matters for thick-walled pressure vessels and tanks.
For US gallons: 1 gallon = 3.78541 liters. For imperial (UK) gallons: 1 gallon = 4.54609 liters. The calculator uses US gallons. Always specify which gallon type when converting.
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