🧊 Volume Calculator
Choose a solid and enter its measurements. You get the volume in cubic units, plus liters or gallons when you work in centimeters or inches.
Volume
How the Volume Calculator works
Each solid has its own formula. All measurements must use the same unit.
Box: L × W × H · Cube: a³ · Cylinder: π r² h
Sphere: 4/3 π r³ · Cone: 1/3 π r² h · Pyramid: 1/3 × L × W × H
Step-by-step calculation
- 1Choose the solid.
- 2Enter the measurements.
- 3Apply the volume formula.
Worked example
A cylinder with radius 3 and height 10 has a volume of π × 9 × 10 ≈ 282.74 cubic units.
Volume Calculator examples
| a | Volume |
|---|---|
| 2 | 125.6637 cubic units |
| 3 | 282.7433 cubic units |
| 4 | 502.6548 cubic units |
| 5 | 785.3982 cubic units |
Other inputs kept at the calculator's default values. Results calculated by this calculator.
Why use a Volume Calculator?
Find capacity for tanks, boxes, pools and homework.
Important factors that can affect your results
- Same units for all sides.
- Inside vs outside measurements.
- Unit conversions to liters or gallons.
Frequently asked questions
How many liters in a cubic meter?
1,000 liters. One liter is 1,000 cubic centimeters.
How many gallons in a cubic foot?
About 7.48 US gallons.
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Last reviewed November 2026 · How we build and check our tools · Report a problem