Volume Calculator

💡 Expert Tips

Watch Your Units

Ensure all dimensions (length, width, height) are in the same unit before calculating. If you mix inches and feet, your answer will be wrong. Convert everything to one unit first.

Radius vs Diameter

For spheres and cylinders, the formula uses radius (r). If you are given the diameter (width across), divide it by 2 to get the radius before plugging it into the calculator.

Liquid Conversion

Calculating for a tank or pool? 1 cubic meter = 1000 liters. 1 cubic foot ≈ 7.48 gallons. This helps translate "math volume" into real-world capacity.

⚠️ Common Mistakes

Mixing Units

Multiplying inches by feet gives nonsense results. Always convert to a single unit (like all inches or all feet) before starting the calculation.

Forgetting 1/3 for Cones

The volume of a cone is exactly 1/3 of a cylinder with the same dimensions. Don't forget to divide by 3 (or multiply by 1/3) in the formula.

Squaring instead of Cubing

Volume is 3D, so you often cube numbers (r³ or s³). Don't just square them (r²). Check the exponent in the formula carefully.

❓ Frequently Asked Questions

How do you calculate the volume of a cylinder? +

The formula is V = πr²h. Calculate the area of the circular base (πr²) and multiply it by the height (h). It's like stacking circles on top of each other.

What is the formula for a sphere's volume? +

V = (4/3)πr³. Cube the radius (multiply it by itself twice: r×r×r), multiply by Pi, multiply by 4, then divide by 3.

What is the difference between volume and capacity? +

Volume is the amount of space an object occupies (measured in cubic units like m³). Capacity is how much a container can hold (often measured in liters or gallons).

How to calculate volume of a box for shipping? +

Measure Length, Width, and Height. Multiply them together: L × W × H. This gives the volume in cubic units (e.g., cubic inches or cubic feet).

Why is the result in 'cubic' units? +

Because you are multiplying three dimensions (Length × Width × Height). m × m × m = m³. Volume represents 3-dimensional space.

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