What units can I use?

You can enter dimensions in millimeters, centimeters, meters, inches, or feet. The result is shown in the corresponding cubic unit, plus automatic conversions to liters, milliliters, gallons, and other units.

What is the formula for a sphere volume?

V = (4/3) x pi x r^3. A sphere with radius 5 cm has volume of about 523.6 cubic centimeters.

Volume Calculator

Calculate the volume of any 3D shape instantly. Supports 10 shapes including cube, sphere, cylinder, cone, and more. Choose from 5 dimension units with automatic volume conversions. Free, real-time, and works on any device.

Shape

Unit

Real-time

Dimensions

Volume Result

cm³

Enter dimensions to calculate

Shape

Cylinder

Surface Area

In Liters

In Gallons

Calculation History

No history yet. Calculate a volume and save it to start tracking.

Calculate Any 3D Shape Volume

Whether you need to calculate the volume of a storage tank, a swimming pool, a shipping box, or a sphere for a science project, our Volume Calculator covers it all. Choose from 10 common 3D shapes, enter dimensions in your preferred unit, and see the volume instantly with automatic conversions to liters, gallons, and other cubic units. Each calculation shows the formula used so you can learn while you compute.

How to Use the Volume Calculator

Select Your Shape

Choose from 10 shapes: Cube, Rectangular Prism, Sphere, Cylinder, Cone, Pyramid, Triangular Prism, Ellipsoid, Hemisphere, or Torus. The input fields update automatically.

Enter Dimensions

Type the required measurements in your chosen unit. Results update in real-time as you type.

View Result & Conversions

See the volume, the formula used, and conversions to other units. Save calculations to history or export them as CSV.

Volume Formulas Reference

Shape	Formula	Example
Cube	V = a³	a=5cm → 125 cm³
Rectangular Prism	V = l × w × h	4×3×5 = 60 cm³
Sphere	V = (4/3)πr³	r=5 → 523.6 cm³
Cylinder	V = πr²h	r=3,h=10 → 282.7 cm³
Cone	V = (1/3)πr²h	r=3,h=10 → 94.2 cm³

Volume Tips

Units Matter

Volume is cubic, so small unit changes cause huge volume changes. 1 meter = 100 cm, but 1 m³ = 1,000,000 cm³.

Liters & Cubic Centimeters

1 liter = exactly 1,000 cm³. This makes cm the most convenient unit for liquid volume calculations.

Composite Shapes

For complex objects, break them into simple shapes, calculate each volume separately, then add or subtract.

Diameter vs. Radius

Many measurements give diameter. Remember to divide by 2 to get the radius before using formulas that require r.

Frequently Asked Questions

How do I calculate the volume of a shape?

Select the shape from the dropdown, enter the required dimensions, and the calculator instantly shows the volume with the formula used.

What units are supported?

You can enter dimensions in millimeters, centimeters, meters, inches, or feet. The result shows in the corresponding cubic unit with automatic conversions to liters, milliliters, gallons, and more.

What is the formula for a sphere?

V = (4/3) × π × r³. For a sphere with radius 5 cm, the volume is about 523.6 cm³.

Is this volume calculator free?

Yes, completely free with unlimited calculations. No registration required. Your history is stored locally on your device for privacy.