Heat Shrink Size Calculator


Calculating the appropriate heat shrink size is crucial in various applications, especially in electronics and wiring. A precise calculation ensures the perfect fit and optimal functionality. To simplify this process, we’ll create a user-friendly Heat Shrink Size Calculator. Follow the guide below to understand how it works and efficiently determine the required heat shrink size.

How to Use

  1. Input the original diameter of the object in the designated field.
  2. Enter the final desired diameter in the provided space.
  3. Click the “Calculate” button to get the accurate heat shrink size.


The formula for heat shrink size calculation is:

Example Solve

Suppose the original diameter is 10 mm10mm and the desired final diameter is 8 mm8mm.

In this case, the heat shrink size would be 1 mm1mm.


Q1: Can the calculator handle negative results?

A1: No, negative results indicate that the final diameter is smaller than the original, and no heat shrink is needed.

Q2: Are there any limitations to the calculator?

A2: The calculator assumes a linear shrinkage ratio; real-world applications may vary.

Q3: What units should be used for diameter input?

A3: Any consistent unit, such as millimeters or inches, can be used.


This Heat Shrink Size Calculator streamlines the process of determining the appropriate size for your application. Ensure accurate and snug fits for your objects by using this straightforward tool. The calculator is versatile, handling various units and providing a quick solution to your sizing needs.

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