Cement Calculator
Calculate 50 kg cement bags required for concrete casting, wall plastering, masonry mortar, and floor screeds.
Wall Plastering Dimensions
Cement Consumption Standards
- • 12mm Plaster (1:4): ~1.0 bag cement per 100 sq ft.
- • 15mm Ceiling Plaster (1:3): ~1.4 bags cement per 100 sq ft.
- • 9" Brickwork (1:6): ~1.3 bags cement per 100 sq ft of wall area.
- • 4.5" Brickwork (1:4): ~0.7 bags cement per 100 sq ft of partition wall.
How to Use Cement Calculator
- Select the construction task: Concrete Casting, Wall Plastering, Brickwork Mortar, or Floor Screed.
- Choose your input unit (Square Feet or Square Meters for surfaces; Cubic Meters or Cubic Feet for volume).
- Enter dimensions or area and thickness (e.g. 12mm plaster, 40mm screed).
- Select your mortar or concrete mix ratio (1:3, 1:4, 1:5, 1:6).
- View the total number of 50 kg cement bags required, total weight in kg, sand volume, water required, and total cost.
Key Features & Privacy Guarantee
- 4 Work Category Engines: Concrete RCC/PCC, Wall Plastering (12mm/15mm/20mm), Brick Masonry Joint Mortar, and Floor Screed Bedding.
- Dry Volume Multipliers Included: 1.54× for concrete and 1.33× for cement mortar/plaster accounting for void loss and shrinkage.
- 50 kg Cement Bags Precision: Exact bag count rounded up to complete bags, with total weight in kg and Metric Tons.
- Accompanying Sand & Water Estimator: Simultaneously calculates fine aggregate (cft/tons) and water demand in liters.
- Cost & Budget Estimator: Computes total expenditure with customizable price per cement bag.
Frequently Asked Questions
How many bags of cement are needed for 100 sq ft of 12mm wall plaster (1:4 mix)?
For 100 sq ft (9.29 m²) of 12mm wall plaster with a 1:4 cement-sand mix, you need approximately 1.0 to 1.1 bags of cement (50 kg) and approx 4.5 cubic feet (cft) of sand.
What is the standard volume and weight of one cement bag?
One standard cement bag weighs 50 kg (approx 110.2 lbs) and has a volume of approximately 0.0347 cubic meters (1.226 cubic feet). Cement density is standardly taken as 1,440 kg/m³.
What mix ratio is recommended for exterior wall plaster?
A 1:4 cement-to-sand ratio is recommended for exterior walls with a thickness of 18mm to 20mm for superior weatherproofing and crack resistance. For interior walls, a 1:5 or 1:6 ratio is commonly used.
How many bags of cement are in 1 Metric Ton?
1 Metric Ton (1,000 kg) equals exactly 20 bags of 50 kg cement.