Betonfundament-Rechner — Formel
## How to Calculate Concrete for Footings
### Formula
**Volume = Length (ft) x Width (ft) x Depth (ft)**
Convert width and depth from inches to feet by dividing by 12, then divide total cubic feet by 27 for cubic yards. Footings are typically 20 inches wide and 8 inches deep for residential construction, but always follow local building codes.
### Formula
**Volume = Length (ft) x Width (ft) x Depth (ft)**
Convert width and depth from inches to feet by dividing by 12, then divide total cubic feet by 27 for cubic yards. Footings are typically 20 inches wide and 8 inches deep for residential construction, but always follow local building codes.
Lösungsbeispiel
A continuous footing that is 50 ft long, 20 inches wide, and 8 inches deep.
- Width in feet: 20 / 12 = 1.667 ft
- Depth in feet: 8 / 12 = 0.667 ft
- Volume = 50 × 1.667 × 0.667 = 55.56 cu ft
- Cubic yards = 55.56 / 27 = 2.06 cu yd
- With 10% waste = 2.06 × 1.10 = 2.26 cu yd