# Poisson's Ratio Calculator

The SkyCiv Poisson's Ratio calculator allows engineers to calculate the Poisson's Ratio of a material. This value can be calculated by two options. The first option is entering Transverse and Axial Strain. The second option is by using Young's Modulus and Shear Modulus.

Starting SkyCiv Poisson's Ratio Calculator...

## What is Poisson’s Ratio?

Poisson's ratio is a fundamental material property that characterises the relationship between transverse (lateral) strain and axial (longitudinal) strain when a material is subjected to an external force. It quantifies the material's ability to expand or contract laterally in response to applied tensile or compressive forces.

## What does Poisson’s Ratio Measure?

Poisson's ratio measures the ratio of transverse strain to axial strain within a material under the influence of external loads. This property is crucial in understanding how a material deforms in different directions and helps engineers predict its behaviour under various mechanical loading scenarios.

## How is Poisson’s Ratio Calculated?

Two distinct methods which can be used to calculate Poisson’s Ratio (v) include:

• Transverse Strain & Axial Strain
• Young’s Modulus & Shear Modulus

Poisson’s Ratio (v) can be calculated using Transverse Strain and Axial Strain with the formula:

Poisson's Ratio (ν) can be calculated using Young's modulus (E) and Shear modulus (G) with the formula:

This formula can be rearranged to solve for Poisson’s Ratio (v):