# Porosity Formula

**Formula:**`P = (Vv / Vb) × 100%`

## Introduction to Porosity Formula

The porosity of a material is a measure of the void spaces in a material, and is calculated by dividing the void or pore volume by the total volume of the material, and then multiplying by 100 to get a percentage.

## Parameters usage:

`Vv`

= void volume of the material`Vb`

= bulk volume of the material

## Example valid values:

`voidVolume`

= 10`bulkVolume`

= 90

## Output:

`porosity`

= percentage porosity of the material

## Data validation

The voidVolume and bulkVolume should be greater than zero. The result is a percentage representing the porosity of the material.

## Summary

This porosity calculator helps in determining the extent of void spaces within a material and expresses it as a percentage of the total volume.

Tags: Geology, Porosity, Material Science, Civil Engineering