Calculadora de Brita
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
V = l·w·h; peso = V × 1,6 t/m³ (brita)
About this calculator
The Gravel Calculator is a practical tool to estimate the volume and weight of gravel needed to fill a rectangular area. Simply enter the dimensions of length, width, and height (or depth) in meters. The volume is calculated by multiplying these three values, resulting in cubic meters. Then, the weight is obtained by multiplying the volume by the average density of gravel, which is 1.6 tons per cubic meter.
This calculator is useful for construction professionals like masons, engineers, and architects, as well as for those doing small home renovations. Common situations include calculating the amount of gravel for concrete, preparing a base for driveways, patios, or gardens, or filling trenches and drains. The result helps plan material purchases, avoiding waste or shortages.
Keep in mind that gravel density can vary depending on the type (gravel 0, gravel 1, gravel 2, etc.) and moisture content. The value of 1.6 t/m³ is an average approximation. For greater accuracy, consult your supplier or perform a density test. Also, consider adding a safety margin of 5% to 10% to the calculated volume to account for losses during transport and application.
This calculator does not replace professional assessment in complex projects. Always check the technical specifications of your project and the recommendations of the concrete manufacturer or drainage system. Use this tool as an initial guide and adjust as needed.
Frequently asked questions
What density of gravel is used in the calculation?
We use an average density of 1.6 tons per cubic meter. This value can vary depending on the type and moisture of the gravel.
Can I use this calculator for different gravel sizes?
Yes, but note that density may vary. Fine gravel (gravel 0) tends to have higher density, while coarse gravel (gravel 2) may have lower density.
How do I convert the result to bags of gravel?
Divide the total weight (in kg) by the bag weight (usually 20 kg or 40 kg). For example, 1 ton equals 50 bags of 20 kg.
Do I need to account for material loss?
Yes, it is recommended to add 5% to 10% to the calculated volume to compensate for losses during transport and application.
Can this calculator be used for other aggregates like sand or stone?
No, each material has a different density. For sand, for example, the average density is 1.4 t/m³. Use a specific calculator for each material.