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Spring Calculator

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 Buy Stock Springs at The Spring Store  by Acxess Spring

 stock spring promotion banner with the spring store logo, and a box with several spring types


Acxess Spring is making spring design easy with our amazing spring calculator.  Our Spring Creator Calculator is composed of three individual spring calculators.  Spring Creator features a compression spring calculator, an extension spring calculator, and a torsion spring calculator all with amazing new features.  The main features of the spring calculators are easy to measure inputs, spring load calculations, warnings and helpful tips, easy ways to determine if your design is "safe", custom blueprint generation, multiple spring design diagrams as well as much more.  For spring design and measurement help please see the information below the calculator.


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 For instructions on how to use our Free Online Spring Calculator visit our pages:

Compression Spring Calculator Instructions

Extension Spring Calculator Instructions

Torsion Spring Calculator Instructions


Many of our customers have become addicted to how simple our spring calculators are to use and how efficient it makes the ordering process.  The easy to use format and custom blueprint generation cannot be found anywhere else on the web.


Design Help:

In order to begin using our calculators you will need to know how to measure your springs.  The tool that you will need is a dial or digital caliper.  Please also note whether you are measuring in inches or millimeters so your inputs are correct on the calculator.

caliper used to measure a spring's dimensions


How to Measure Compression Springs:digram showing how to measure a spring

The first calculator we have is a compression spring calculator. 

You will need to know how to measure the following variables:

-Wire Diameter
-Outer Diameter
-Free Length
-Number of Coils

You will also need to determine your wire type.  Determine wire types is based on environmental conditions.  The most common type of material is Music Wire.  If the spring is going to be exposed to water please choose Stainless Steel 302.


 Determining your compression spring end type:


Please see the images below to determine which end type you have on your spring.  For more information on each end type please see our How to measure springs page.


purple compression spring with closed ends   gray compression spring with closed and ground ends   green compression spring with double closed ends   blue compression spring with open ends

diagram showing how you must measure an extension spring
How to Measure Extension Springs:

To measure extension springs you will need to know the following measurements:

-Wire Diameter
-Outer Diameter
-Length Inside Hooks


As with compression springs you will also need to determine your wire type.  Determine wire types is based on environmental conditions.  The most common type of material is Music Wire.  If the spring is going to be exposed to water please choose Stainless Steel 302.


Determining Hook Type:


Choosing a hook type is very important in extension spring design.  In order to have your extension spring function properly you will need to know which type of hook will work best.  If you do need a hook on your extension spring, the most economical choice of hook when purchasing from Acxess Spring is the cross over center or side hook.  The extended hooks are the most expensive of the 5. For more help on measuring your extension spring please visit our spring measurements page.


Extension spring with one machine hookExtension spring with one crossover center hookExtension spring with one side hookExtension spring with one extended hookExtension spring with no hooks


How to Measure Torsion Springs:

In order to use the torsion spring calculator you will need to use your calipers to get the following measurements.

-Wire Diameter
-Outer Diameter
-Inner Diameter (if OD is unknown)
-Leg Lengths
-Number of Coils
-Direction of Wind

diagram demonstrating how to measure a torsional spring


Please note that the number of coils you enter will effect your free position.  It is very important that you have the correct free position for your spring to work correctly.  For more help on measuring your torsion spring please visit our how to measure springs page.

In order to determine your free position from your number of active coils simply multiply the decimal and numbers after the decimal by 360.

For example
9.25 total coils
0.25 x 360 = 90 degree free position

Acxess Spring, 2225 E. Cooley Dr. Colton, CA 92324

Ph: (951)276-2777 Fx: (951)240-3334 Email: sales@acxesspring.com