Volume Calculator
Find the volume of a cube, rectangular box, cylinder, sphere, cone, or square pyramid. Enter dimensions in a single supported length unit and compare cubic feet, cubic meters, liters, US gallons, and cubic yards.
Volume Calculator tool
About the Volume Calculator
Use the calculator for storage spaces, containers, classroom solids, or preliminary material estimates. Container capacity requires internal measurements; external measurements describe the space occupied by the object.
How Is Volume Calculated?
Use the dimensions and definitions below. Calculations use unrounded intermediate values; displayed results are rounded.
Cube = side³; rectangular box = length × width × height
Cylinder = π × radius² × height; sphere = 4π × radius³ ÷ 3
Cone = π × radius² × height ÷ 3; square pyramid = base side² × height ÷ 3
Example
A cube with side 1 m has volume 1 cubic meter, or 1,000 liters.
How to Use the Volume Calculator
- Select the solid.
- Select the measurement system and input unit.
- Enter the required dimensions in one unit.
- Check radii and perpendicular heights.
- Read the volume and capacity equivalents.
Volume Calculator Examples
Cubic container
A cube with side 1 m has volume 1 cubic meter, or 1,000 liters.
Box in cubic yards
A box 3 ft long, 3 ft wide, and 3 ft high holds 27 cubic feet, or 1 cubic yard.
Measurement and input conventions
The US liquid gallon, exactly 3.785411784 liters, is used, not the imperial gallon.
Yes. Divide diameter by two before entering the radius.
Using the result responsibly
One cubic yard equals 27 cubic feet because 3 × 3 × 3 = 27.
Keep adequate precision when transferring results to another calculation. Rounding a displayed result too early can change a later answer.
Frequently Asked Questions
Which gallon is used?
The US liquid gallon, exactly 3.785411784 liters, is used, not the imperial gallon.
Do cylinder inputs use radius?
Yes. Divide diameter by two before entering the radius.
Which height does a cone use?
Use perpendicular height from the base plane to the tip, not slant height.
Can I estimate liquid capacity?
Yes, if the shape is appropriate and you use internal dimensions. Allow for freeboard and wall thickness separately.
How many cubic feet are in a cubic yard?
One cubic yard equals 27 cubic feet because 3 × 3 × 3 = 27.