Poisson's Ratio Calculator

Calculate Poisson's ratio (ν), a measure of the Poisson effect that describes the expansion or contraction of a material in directions perpendicular to the direction of loading.

Poisson's Ratio Calculator

Usually negative when stretched (material gets thinner).
Usually positive when stretched (material gets longer).

How to Use

  1. 1

    Enter Transverse Strain

    Input the lateral (transverse) strain. This is usually a negative value if the material is being stretched axially (because it gets thinner).

  2. 2

    Enter Axial Strain

    Input the longitudinal (axial) strain. This is usually positive when the material is stretched.

  3. 3

    Calculate

    Click calculate to view Poisson's ratio. The negative sign is handled by the formula (ν = -ε_t / ε_a).

Frequently Asked Questions

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