engineering

Strain Calculator

Calculate axial strain, percentage strain, and lateral strain with Poisson's ratio

Strain Calculator

Calculate axial strain (ε = ΔL/L₀), percentage strain, and lateral strain using Poisson's ratio.

Positive = elongation, negative = compression

Results

Axial Strain ε2.0000e-3
Percentage Strain0.2000 %

Formulas

ε = ΔL / L₀ = 0.0020 / 1.0000
ε = 2.0000e-3

How to Use This Calculator

1

Enter your input values

Fill in all required input fields for the Strain Calculator. Most fields include unit selectors so you can work in your preferred unit system.

2

Review your inputs

Double-check that all values are correct and that you have selected the right units for each field. Incorrect units are the most common source of calculation errors.

3

Read the results

The Strain Calculator instantly computes the output and displays results with units. All calculations happen in your browser — no loading time and no data sent to a server.

Formula Reference

Strain Calculator Formula

See calculator inputs for the governing equation

Variables: All variables and their units are labeled in the calculator interface above.

When to Use This Calculator

  • Use the Strain Calculator when solving homework or exam problems that require quick numerical verification of your hand calculations.
  • Use it during the design phase to rapidly iterate on parameters before running detailed finite element simulations.
  • Use it when reviewing a colleague's calculation or checking a vendor's data sheet for plausibility.
  • Use it to generate reference data for a technical report or presentation without manual computation.

Related Calculators