Created By : Vaibhavi Kumari

Reviewed By : Rajashekhar Valipishetty

Last Updated : May 17, 2023

This stress calculator will assist you in solving problems involving stress, strain, and Young's modulus in mechanics. You can learn the stress vs strain relationship for any elastic material in a few simple steps. We'll also show you how to use the stress equation and calculate strain.

Area (A)
Force (F)
Stress (σ)

What Does Stress Mean?

Stress is a physical quantity that represents the force applied to an object/material per unit area in physics. In other words, stress is defined as the external restoring force per unit area acting on an object. The stress is measured in N/m^2 in the SI system.

The Greek letter "σ" can be used to represent stress. Normal stress, shearing/tangential stress, tensile stress, compressive stress, and so on are some of the different types. The formula for calculating stress is as follows: Stress = Force/Area i.e.σ = F/A

  • where
  • σ = stress
  • F = the force which acts on the body
  • A = cross-sectional area


How do you calculate Stress?

In simple terms, stress is the amount of pressure exerted on each other by the particles of a material. The force acting on an object per unit of area can be used to calculate it. Stress and pressure are not the same things, despite some similarities.

When calculating stress, you must take into account a very small area and assume that all of the particles you examined are homogeneous. When calculating stress over a larger area, the average value is used. The stress formula to use if you don't have a stress calculator is:

σ = F/A

What is the definition of Engineering Stress?

Engineering stress is defined as a force acting perpendicular to the original cross-sectional area and is denoted by the symbols = W/A0 or Engg stress = Load/Original cross-sectional area. The instantaneous load applied perpendicular to the specimen cross-section and the original cross-sectional area before any load is applied are referred to as the load and the original cross-sectional area, respectively.

How to calculate Engineering Stress?

Engg stress = Load/Original cross-sectional area calculates engineering stress, which is the force acting perpendicular to the original area of the cross-section. You'll need a load (W) and the original cross-sectional area to calculate engineering stress (A0). To use our tool, enter the appropriate values for the Load and Original cross-sectional area and then press the calculate button. You can also choose the units for the Input(s) and Output (if applicable).

How Do I Use the Stress Calculator?

The following is the procedure how to use the stress calculator:

  • Step 1: In the input field, enter the unknown value's force, area, and x.
  • Step 2: To calculate the stress, click the "Calculate the Unknown" button.
  • Step 3: Finally, in the output field, the object's stress will be displayed.

FAQs on Stress

1. How do you find out how much stress you have?

Stress is calculated by dividing the force by the area of its generation, and because this area ("A") can be either sectional or axial, the basic stress formula is σ = F/A.

2. Is there a difference between stress and pressure?

The difference between stress and pressure is that the force in pressure is external, whereas the force in stress is internal, preventing it from changing its shape or size.

3. What is the definition of material stress?

Stress is a measurement of how the material reacts to external forces. It's simply the external forces divided by the material's cross-sectional area.

4. What is the SI unit of stress?

The definition of stress is force per unit area. The SI unit for stress is N/m^2.

5. What is the formula of Engineering Stress?

Engg_stress = Load/Original cross-sectional area

σ = F/A