Volume Calculator
Last updated: November 5, 2026
Calculate rectangular-prism, cylinder and sphere volumes from editable dimensions.
Rectangular-prism volume
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- Cylinder volume: —
- Sphere volume: —
- Box surface area: —
On this page
Quick summary: Calculate rectangular-prism, cylinder and sphere volumes from editable dimensions.
Read the complete guide
Updated reference sections in this guide are in English.
What this calculator estimates
Calculate rectangular-prism, cylinder and sphere volumes from editable dimensions.
How to use it
Enter Box length; Box width; Box or cylinder height; Cylinder or sphere radius. Select Calculate to update the results.
How the calculation works
The calculator applies standard geometric formulas for a rectangular prism, cylinder and sphere.
Worked example: starting scenario
| Box length | 10 |
|---|---|
| Box width | 6 |
| Box or cylinder height | 4 |
| Cylinder or sphere radius | 3 |
| Rectangular-prism volume | 240 cubic units |
|---|---|
| Cylinder volume | 113.09733553 cubic units |
| Sphere volume | 113.09733553 cubic units |
| Box surface area | 248 square units |
Important limitations
All dimensions must use the same unit. Results are mathematical estimates and do not include material waste.
Each shape uses different dimensions
The box uses length, width and height; the cylinder uses radius and height; the sphere uses radius alone. With radius 3 and height 4, cylinder volume is 36π, while sphere volume is also 36π for this particular radius. The equality is coincidental. Use a radius rather than a diameter and one consistent length unit; all volume outputs use cubic units.