Cylinder Volume Formula:
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The cylinder volume formula calculates the capacity of a cylindrical tank in gallons. It uses the mathematical constant π (pi) along with the radius and height measurements to determine the volume.
The calculator uses the cylinder volume formula:
Where:
Explanation: The formula first calculates the volume in cubic inches (πr²h), then converts to gallons by dividing by 231 (since 1 gallon = 231 cubic inches).
Details: Accurate volume calculation is essential for determining tank capacity, liquid storage requirements, and proper sizing for various industrial, agricultural, and residential applications.
Tips: Enter radius and height in inches. Both values must be positive numbers. For best accuracy, measure the internal dimensions of the tank.
Q1: Why divide by 231 in the formula?
A: 231 is the conversion factor from cubic inches to US gallons (1 US gallon = 231 cubic inches).
Q2: Can this calculator be used for other tank shapes?
A: No, this calculator is specifically designed for cylindrical tanks. Other shapes require different formulas.
Q3: How accurate is this calculation?
A: The calculation is mathematically precise for perfect cylinders. Real-world tanks may have variations in shape that affect actual capacity.
Q4: Should I measure inside or outside dimensions?
A: For capacity calculations, always use the internal dimensions of the tank, excluding wall thickness.
Q5: How do I calculate for partially filled tanks?
A: For partially filled cylindrical tanks, more complex calculations are needed based on the fill level and orientation of the tank.