Cube Volume Calculator
Calculate volume of cubic containers, storage boxes, and dice from side length. Enter your measurements below to calculate instant, accurate volume in gallons, liters, cubic feet, or cubic meters.
Enter Dimensions
Measure your cube and select units for each measurement
How to Calculate Cube Volume
Understand the mathematical formula and measurement method
Where a is the edge (side) length of the cube. Total Surface Area is A = 6a².
Calculation Steps
- 1Measure any one of the cube’s edges (a). Since all sides of a cube are identical, length = width = height.
- 2Multiply the edge length by itself three times (a × a × a, or a³).
- 3Convert the resulting cubic units into your desired volume measurement (e.g. gallons, liters, cubic feet).
Practical Everyday Uses for Cube
Where this 3D calculation is applied in construction, shipping, and daily projects
Moving & Storage Boxes
A 2-foot cube storage box holds 2 × 2 × 2 = 8 cubic feet of goods (approx. 59.8 gallons).
Concrete Footings & Blocks
Contractors calculating cubic yards of poured concrete for square structural bases.
Cube Aquariums
Determine total water capacity in gallons or liters for nano reef and freshwater cube fish tanks.
Frequently Asked Questions
Common measurement questions for cube volume
What is the formula to find the volume of a cube?▼
The formula is V = a³, where "a" represents the length of any edge. For example, if a = 3 ft, V = 3 × 3 × 3 = 27 ft³.
How do you calculate surface area of a cube?▼
A cube has six equal square faces. The surface area formula is A = 6 × a². For an edge of 2 m, A = 6 × 4 = 24 m².
Can I use different units for the sides?▼
In a cube, all sides are equal. If you know the edge in inches, our calculator can instantly give you the volume in gallons, liters, or cubic feet.
Explore Other 3D Volume Calculators
Quick links to other shapes in our mathematical suite