10 Best Free Online Strain Calculator Websites

Here is a list of the best free online strain calculator websites. When you apply force on an object, the deformation that occurs in the direction of force is called strain on that body. Strain is a ratio of change in the length of the object and the initial length of the object. Initial length, final length, and change in length are the parameters involved in strain. You need to know any two of these parameters to calculate the stain.

This post covers 10 websites where you get a strain calculator. These calculators take length parameters to determine the stain. Some of these calculators also calculate the amount of stress on an object from force applied and the cross-section area of that object. These calculators can be a time saver for those who work in the field of mechanics, civil engineering, and materials science, among others. With these calculators, you can quickly and accurately calculate the deformation of a material under various loads.

My Favorite Online Strain Calculator

OmniCalculator.com is my favorite website on this list to calculate strain online. The calculator has a simple interface to calculate stress and strain in one place. It supports multiple measuring units that you can change individually for each parameter. Also, it can calculate the modulus of elasticity aka Young’s modulus.

You can check out our other lists of the best free online Free Fall Calculator websites, online Inequality Calculator websites, and online Osmotic Pressure Calculator websites.

Comparison Table:

Websites	True Strain	True Stress	Imperial/Metric
OmniCalculator.com	✓	✓	Both
CalcTool.org	✓	✓	Both
EasyCalculation.com	✓	✓	Both
MeraCalculator.com	✓	x	Metric
OnlineCalculator.guru	✓	✓	Both
AJDesigner.com	✓	x	Both
EpsilonEngineer.com	✓	✓	Both
Swiftutors.com	✓	✓	Metric
Byjus.com	✓	x	Metric
EICAC.co.uk	✓	x	Both

OmniCalculator.com

OmniCalculator.com offers a wide collection of online calculators covering a variety of topics. It has a Stress Calculator that you can use to calculate stress and strain. This calculator has two sections; one for stress and another for strain. With the value of area and force, you can get stressed. And, with the values of change in length, initial length/final length, you can get the strain. If you calculate both, stress and strain, this calculator also gives you the value of Young’s modulus (E). Apart from the calculation, this calculator supports multiple measuring units under imperial and metric unit systems. You can individually pick the unit of choice for each parameter in the calculation.

Highlights:

• True Strain: From Initial Length, Final Length, and/or Change in Length.
• True Stress: From Area and Force.
• Additional Calculation: Young’s modulus (E).
• Unit System: Imperial and Metric.

CalcTool.org

CalcTool.org is similar to OmniCalculator and features an identical Stress Calculator. This calculator works with multiple units covering imperial and metric unit systems. It also has two separate sections for stress and strain calculation. The first section is for stress where you can add the area and force to get the value of stress. Then the next section is for strain. This section asks for the initial length, final length, and change in length. You can enter any two of these values to strain. When you calculate both, stress and strain, it also calculates the modulus of elasticity.

Highlights:

• True Strain: From Initial Length, Final Length, and/or Change in Length.
• True Stress: From Area and Force.
• Additional Calculation: Young’s modulus (E).
• Unit System: Imperial and Metric.

EasyCalculation.com

EasyCalculation.com is a website with free online calculators and converters. This website packs Strain and Stress Calculators into a single package. The calculator has two tabs at the top from where you can switch between the strain calculator and the stress calculator. The strain calculator calculates the strain from the change in length and the initial length. Whereas stress calculators use applied load and cross-section area for the calculation. Both calculators allow you to change the measuring unit for each parameter individually. It does not calculate Young’s modulus but is good for true strain and true stress calculations.

Highlights:

• True Strain: From Initial Length and Change in Length.
• True Stress: From Applied Load and Cross-section Area.
• Additional Calculation: N/A.
• Unit System: Imperial and Metric.

MeraCalculator.com

MeraCalculator.com provides a collection of online calculators covering Maths, Physics, Chemistry, etc. Among its Physics calculators, you get a Strain Calculator. This calculator uses the metric unit system that you can not change. There are three parameters in this calculator; Change in Length, Length, and Strain. Alongside that, it shows the formula for strain calculation. You can simply add the length inputs and run the calculator to get the value of strain. It also has a reset button to clear the calculator for a new calculation. This can come in handy for back-to-back strain calculations.

Highlights:

• True Strain: From Initial Length and Change in Length.
• True Stress: N/A.
• Additional Calculation: N/A.
• Unit System: Metric.

OnlineCalculator.guru

OnlineCalculator.guru is another free website that has a wide collection of online calculators. This website features a calculator that calculates the stress and strain with steps. It works with multiple measuring units under the imperial and metric unit systems. You can pick the correct units for each parameter and add your values. Then you can provide the initial length, final length, force, and area. When you run the calculator, it shows you the steps of calculation with the formula used. You get the strain as well as the strain experienced by the object. Along with that, it also calculates Young’s modulus which gives you the modulus of elasticity.

Highlights:

• True Strain: From Initial Length and Final Length.
• True Stress: From Area and Force.
• Additional Calculation: Young’s modulus (E) with steps.
• Unit System: Imperial and Metric.

AJDesigner.com

AJDesigner.com has a free online Stress Strain Equations Calculator. This calculator takes the change in length and original length as input. It supports multiple measuring units covering imperial and metric unit systems. You can select the desired unit and then add your data. With that, the calculator gets you the strain. Along with that, it also has multiple related formulas covering strain, stress, area, etc. You can use this calculator to easily determine the strain experienced by an object.

Highlights:

• True Strain: From Initial Length and Change in Length.
• True Stress: N/A.
• Additional Calculation: N/A.
• Unit System: Imperial and Metric.

EpsilonEngineer.com

EpsilonEngineer.com offers calculators for Stress, Strain, and Young’s Modulus (Modulus of Elasticity, Elastic Modulus). It has three different calculators. The stress calculator asks for applied force and area. The strain calculator asks for changes in length and original length. You can use these calculators to determine the stress and strain. When you have both these values, you can use the third calculator to determine Young’s Modulus aka Modulus of Elasticity as well.

Highlights:

• True Strain: From Initial Length and Change in Length.
• True Stress: From Area and Force.
• Additional Calculation: Young’s modulus (E).
• Unit System: Imperial and Metric.

Swiftutors.com

Swiftutors.com is another free website that offers online stress and strain calculators. This website has these two calculators together. Both these calculators work with the metric unit system. The unit for each parameter is fixed and can not be changed. You can just add the respective values into the calculators and calculate the stress and strain. However, you get both, stress and strain, it does not calculate the module of elasticity.

Highlights:

• True Strain: From Initial Length and Change in Length.
• True Stress: From Area and Force.
• Additional Calculation: N/A.
• Unit System: Metric.

Byjus.com

Byjus.com is an online learning platform that covers a wide variety of subjects and topics. It also offers online calculators for various terms. It has a free online strain calculator that you can use. This calculator uses the metric unit system. It has three parameters covering strain, original length, and change in length. You can add any two parameters to calculate the third one. For the strain calculator, you have to provide the change in length and the original length. This way, you can use the calculator to calculate the strain experienced by a given object.

Highlights:

• True Strain: From Initial Length and Change in Length.
• True Stress: N/A.
• Additional Calculation: N/A.
• Unit System: Metric.

EICAC.co.uk

EICAC.co.uk is yet another website to calculate strain online. This website has three calculators that calculate strain, change in length, and original length. It supports multiple measuring units under the metric and imperial unit systems. To calculate the stain, you have to provide the change in length and the original length. And if you already know the strain, you can use the other two calculators to determine the change in length and original length as well.

Highlights:

• True Strain: From Initial Length, Final Length, and/or Change in Length.
• True Stress: N/A.
• Additional Calculation: N/A.
• Unit System: Imperial and Metric.