Cubic Feet to Square Feet
Cubic feet to square feet needs a depth. At 1 inch deep, 1 ft³ covers 12 ft². At 4 inches, 1 ft³ covers 3 ft². The table below shows the area covered by 1 ft³ at common depths.
The formula
ft² = ft³ ÷ (depth in feet) = ft³ × 12 ÷ depth in inches
| Depth | 1 Cubic = |
|---|---|
| 1 in | 12 ft² |
| 2 in | 6 ft² |
| 3 in | 4 ft² |
| 4 in | 3 ft² |
| 5 in | 2.4 ft² |
| 6 in | 2 ft² |
| 8 in | 1.5 ft² |
| 12 in | 1 ft² |