Cube Surface Area
Enter your known values, leave one input blank, and solves for the missing one. Try different units for next level excitement!
Learning zone
A cube has six identical square faces, so its surface area is six times the area of one face. Painting a cubic tank 2 m on a side means covering 6 × 2² = 24 m². Solving for the edge takes the principal positive square root, since an edge length is positive by definition. Comparing S = 6a² with V = a³ shows why big cubes hold proportionally more than they cost to coat — volume outruns surface as size grows.
Cube Surface Area
Where
- = Surface area
- = Edge length
Missing one of these? Work it out first, then come back
- Surface area — Sphere Surface Area, Cylinder Surface Area
- Edge length — Cube Volume, Cube Space Diagonal