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How to Calculate Spring Weight

Definition: The calculation of the mass weight of a coil spring based on its wire size, outer diameter, number of coils, and density of wire. Can be calculated using the corresponding formulas and equations.


Calculating the weight of your spring is necessary for both engineering and manufacturing reasons. They are required in the engineering phase when you need for this spring to be light in your application. When it comes to the making of your spring, we might need to know the weight of the spring to estimate the approximate amount of wire we will be required to use. Knowing the weight of your springs can also be very helpful when you plan on shipping them or perhaps they are being shipped to you. Using our spring calculator may help you calculate spring weight automatically but we have provided you with the formulas behind our spring calculator to help you calculate spring weight and wire length in both inches and feet.


To calculate spring weight you must calculate wire length first. The formula for wire length varies depending on the spring type. Below are the different spring calculations.

 Calculate Compression Spring Weight

 Calculate Extension Spring Weight

 Calculate Torsional Spring Weight

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