M20 Grade Concrete Calculator

Calculate the cement, sand, and aggregate needed for M20 grade concrete.

m³

Enter the total volume of concrete required.

kg

Enter the weight of a cement bag. Typically 50 kg.

Cement Required (in kg)

N/A

Cement required based on M20 mix ratio and dry volume adjustment.

Cement Required (in bags)

N/A

Number of cement bags required based on M20 mix ratio.

Sand Required

N/A

Sand required based on M20 mix ratio.

Aggregate Required

N/A

Aggregate required based on M20 mix ratio.

What is M20 Grade Concrete?

M20 grade concrete is a mix of cement, sand, and aggregate in a ratio of 1:1.5:3, where 1 part is cement, 1.5 parts is sand, and 3 parts is aggregate. This mix is commonly used for various small to medium construction projects, like floors, driveways, and foundations, as it provides a standard level of strength and durability.

How to Calculate the Cement, Sand, and Aggregate?

To calculate the amount of each component required, the following formulas are used:

  • Cement Required (in kg): (Volume of Concrete × 1 / 5.5) × 1.57 × 1440
  • Cement Required (in bags): Cement (kg) divided by the weight of one cement bag.
  • Sand Required: Volume of Concrete × 1.5 / 5.5 × 1.57
  • Aggregate Required: Volume of Concrete × 3 / 5.5 × 1.57

Example Calculation for 1 Cubic Meter of Concrete

For a total concrete volume of 1 cubic meter and assuming a cement bag weight of 50 kg, the calculations are as follows:

  • Cement (in kg): (1 × 1 / 5.5) × 1.57 × 1440 = 411 kg
  • Cement (in bags): 411 kg / 50 kg per bag = 8.22 bags
  • Sand (in cubic meters): (1 × 1.5 / 5.5) × 1.57 = 0.43 m³
  • Aggregate (in cubic meters): (1 × 3 / 5.5) × 1.57 = 0.86 m³

Applications and Importance

M20 grade concrete is versatile and suitable for a variety of building projects. Its balanced strength makes it ideal for both structural and non-structural applications, providing sufficient durability for moderate loads and environmental exposure.

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