Select the area shape and enter its length, width, and height dimensions. The calculator will try to estimate the volume of concrete required to fill the area.

Estimate the volume and weight of concrete that you need to complete a construction project. It is a good option to use a little higher quantity of material to avoid any shortage issues on the job site.

Our concrete calculator will determine the concrete material quantity and cost to purchase it accurately. With that, the tool will also help you in calculating concrete bags subjected to different concrete weights.

Get calculations in different units of measurement to ensure precision.

Component | Percentage |
---|---|

Cement | 10% |

Air | 20% |

Sand | 30% |

Gravel | 40% |

It depends upon the type of project. Whether you are constructing a concrete slab, footings, steps, or columns, the amount of material will differ always. Using the concrete calculator can give you an instant estimation of the concrete that you require to complete your earthwork project.

The important aspect that is worth considering here is the shape of the area. Once you measure the dimensions of the land, it becomes easier to predict the cement material accordingly. But the situation holds until you are dealing with basic shapes like rectangles, squares, triangles, etc. When it comes to areas with irregular dimensions, the task becomes tricky.

In this situation, you can divide the area into smaller portions that match different basic geometrical shapes supported by concrete calculator provides calculations. After that, you can add up all small calculations and get the concrete volume for the overall land area.

When mixing or pouring concrete, chances are that some ratio of it may be wasted. This is why you should prefer making 5-6% extra concrete so you can complete your project without running out of concrete.

- Volume (ft³) = Height * Length * Width

- Area (ft²) = π (Diameter²)/4
- Volume (ft³) = Depth * Area

- Volume (ft³) = Height * Length * Width

- Volume (ft³) = Height * Length * Width

- Area (ft²) = π (Diameter²)/4
- Volume (ft³) = Depth * Area

- Volume Under Platform (ft³) = Width Platform Depth (Rise Height * No. Of Steps)
- Volume Under Each Step (ft³) = Run Depth Width (Rise Height + Step Number)
- Total Volume (ft³) = Volume Under Platform (ft³) + Volume Under Each Step

- Volume Under Curb (ft³) = Curb Depth * Length * (Curb Height + Flag Thickness)
- Volume Under Gutter (ft³) = Gutter Width * Length * Flag Thickness
- Total Volume (ft³) = Volume Under Curb (ft³) + Volume Under Gutter (ft³)

Dry Density (kg/m3) | 7-day Compressive Strength (N/mm2) | Thermal Conductivity* (W/mK) | Modulus of Elasticity (kN/mm2) | Drying contraction (%) |
---|---|---|---|---|

400 | 0.5 – 1.0 | 0.10 | 0.8 – 1.0 | 0.30 – 0.35 |

600 | 1.0 – 1.5 | 0.11 | 1.0 – 1.5 | 0.22 – 0.25 |

800 | 1.5 – 2.0 | 0.17 – 0.23 | 2.0 – 2.5 | 0.20 – 0.22 |

1000 | 2.5 – 3.0 | 0.23 – 0.30 | 2.5 – 3.0 | 0.18 – 0.15 |

1200 | 4.5 – 5.5 | 0.38 – 0.42 | 3.5 – 4.0 | 0.11 – 0.19 |

1400 | 6.0 – 8.0 | 0.50 – 0.55 | 5.0 – 6.0 | 0.09 – 0.07 |

1600 | 7.5 – 10.0 | 0.62 – 0.66 | 10.0 – 12.0 | 0.07 – 0.06 |

The tool works to give you instant outputs by considering certain related parameters that are necessary for the calculations. These include:

- Type of Project: Select the slab for which you want to calculate concrete
- Dimensions: Enter accurately measured dimensions of the slab and select relate units
- Quantity: If you want to estimate cement quantity for more than one slab, enter the number in the required field
- Cost (Optional): Enter the unit price in its related field

- Volume Calculations: Know how many yards of concrete you need.
- Adjustments: You will get concrete estimations in terms of other related units (cubic feet and cubic meters).
- Weight Needed: Exact concrete weight (lbs or kgs) calculations for required volume.
- Number of Bags: The calculator gives you an instant idea of how many concrete bags are needed to pour a slab for varying weights.
- Concrete Cost: Get the overall purchase cost of concrete that you need to pay for the accomplishment of the project.

With our concrete slab calculator, you no longer have to deal with complicated calculations that are involved in estimations. The tool does the task very efficiently to give you precise values in less than a second.

For a 24x24x4 concrete slab, you need 0.59 cubic yards of concrete volume. The weight against this volume is about 958.5 kg.

**General Mix:**

Concrete Type | Ratio |
---|---|

All In Ballast | 1:5 |

Cement:Sharp Sand:Gravel | 2 ½:3 ½ |

**Paving Mix:**

Concrete Type | Ratio |
---|---|

Cement:All In Ballast | 1:3 ½ |

Cement:Sharp Sand:Gravel | 1:1 ½:2 ½ |

A normal concrete slab has a face of about **8 **inches by **10 **inches (203mm by 406mm). The available thickness in these sizes includes **4, 6, 8, 10, 12, 14**, and **16 **inches.

The strongest concrete material ratio is **1:2:3:0.5**.

- First of all, calculate cubic feet of concrete
- Multiply cubic feet by
**0.037**to get cubic yards - Finally, multiply total cubic yards by cubic yards per single bag

To get these estimations without any error involved, you can use the concrete bag calculator.

As calculated from concrete yard calculator, you need:

- 75 bags - Each weighing 50 pounds
- 60 bags - Each weighing 60 pounds
- 45 bags -Each weighing 90 pounds