Construction Finishing
Plastering Material Calculator
Calculate cement, sand, and water quantities for plastering work.
Wall/Area Type
Wall: vertical surface, Ceiling: horizontal surface
Length
m
Height / Width
m
Wall height or ceiling width
Plaster Thickness
mm
Typical: 10-15mm for walls, 6-10mm for ceilings
Mix Ratio
1:
(Cement:Sand)
Cement to sand ratio (e.g., 1:4, 1:5, 1:6)
Material Prices
Cement (per bag)
$
Sand (per m³)
$
Cement in 50kg bags, Sand in cubic meters
Cement
0%
Total Cost
$0
estimated total cost
Cement Bags
0
Sand Volume
0 m³
Water Required
0 L
Plaster Area
0 m²
📊 Material Breakdown
| Material | Quantity | Unit Cost | Total Cost |
|---|
How the formula works
Plaster Volume = Area × Thickness | Cement = (Volume ÷ (1 + Ratio)) ÷ 0.035 | Sand = (Volume × Ratio) ÷ (1 + Ratio)
- Area = Length × Height (for walls) or Length × Width (for ceilings)
- Plaster Volume = Area × Thickness (in meters)
- Cement Bags = (Plaster Volume ÷ (1 + Ratio)) ÷ 0.035 (1 bag = 0.035 m³)
- Sand Volume = (Plaster Volume × Ratio) ÷ (1 + Ratio)
- Water = Approximately 20-30% of cement weight (in liters)