Young's Modulus Calculator
Calculate Young's modulus from axial stress and strain with results in gigapascals and pascals.
What would you like to do next?
Calculate axial elastic modulus from one stress-strain point
Enter nonnegative axial stress in megapascals and positive axial strain as a percentage. The calculator converts strain to a dimensionless ratio and reports Young's modulus in gigapascals and pascals, alongside the entered strain in microstrain. Keeping the conversions visible helps users check laboratory worksheets, compare a measured slope with a reference value and catch percent-versus-decimal mistakes.
Use data from the linear elastic range
A single stress-to-strain ratio represents a modulus only when the response is approximately linear, uniaxial and elastic. Specimen direction, temperature, gauge alignment, seating, bending and machine compliance can affect measurements. Use a fitted slope across an approved interval and the relevant test standard when material acceptance or structural design depends on the result.
Frequently asked questions
Why must strain be positive here?
The page uses a nonnegative tensile-stress magnitude and a positive matching axial strain.
Is one point enough for a certified modulus?
No. Formal testing normally fits a slope over a defined elastic interval.
How is percent strain converted?
The entered percentage is divided by one hundred before stress is divided by strain.