1. What is a Cylinder Volume Calculator?

Definition: This calculator computes the volume of a cylinder in cubic meters based on its radius and height.

Purpose: It helps engineers, architects, and students determine the capacity or volume of cylindrical objects.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( V \) — Volume (cubic meters)
• \( r \) — Radius of the base (meters)
• \( h \) — Height of the cylinder (meters)
• \( \pi \) — Mathematical constant (~3.14159)

Explanation: The formula calculates the area of the circular base (πr²) and multiplies it by the height to get the volume.

3. Importance of Cylinder Volume Calculation

Details: Accurate volume calculations are essential for material estimation, capacity planning, and structural design in various engineering applications.

4. Using the Calculator

Tips: Enter the radius and height in meters. Both values must be greater than 0.

5. Frequently Asked Questions (FAQ)

Q1: Can I use different units?
A: This calculator uses meters. For other units, convert to meters first (1m = 100cm = 1000mm).

Q2: What if my cylinder is horizontal?
A: The formula works the same regardless of orientation as long as you measure the height perpendicular to the base.

Q3: How accurate is the calculation?
A: It's mathematically precise for perfect cylinders. Real-world objects may have slight variations.

Q4: Can I calculate liquid volume in a tank?
A: Yes, this gives total capacity. For partial fills, you'd need additional calculations.

Q5: What's the value of π used?
A: The calculator uses PHP's built-in pi() function which provides about 15 decimal digits of precision.