Concrete Calculator

What is the Concrete Calculator – concrete consumption and mixing ratio?

The Concrete Calculator calculates the required volume of concrete (m³) for given dimensions as well as the amounts of raw materials (cement, sand, gravel) in the mixing ratio. The calculator is suitable for calculating floors, foundations, and outdoor areas.

The calculator is free, works directly in the browser, and does not require registration. All calculations are based on standard formulas; always check the rules that apply where you live.

Calculation Formula

Volume = Length × Width × Thickness (m³). Cement (kg) = volume × 350 kg/m³.

Fill in the fields of the calculator with your dimensions or values and press the calculate button. The result will be displayed immediately.

Practical Example

Garage floor: 6 × 3 × 0.10 m = 1.8 m³. Cement 630 kg (about 13 bags of 50 kg), sand 2,250 kg, gravel 4,500 kg.

Try with your own dimensions – the calculator updates the result in real-time. Always add a small reserve for waste.

When do you need this calculator?

The calculator is particularly useful in planning renovation and construction projects, preparing quotes, and estimating material costs. Accurate measurement results save both money and time.

Remember that it is always advisable to consult professionals regarding critical structures in construction. This calculator provides a good estimate of material quantities.

Practical Tips

• Add a 10% reserve for waste – concrete sticks to wheelbarrows, shovels, and molds.
• Always mix concrete in small batches (max. 30 min working time).
• Wet the substrate with water before pouring concrete – a dry surface absorbs moisture from the concrete.