Torque Wrench Extension Calculator

This calculator determines the actual torque applied to a fastener when using an extension rod with a torque wrench.

Input Parameters

Calculation Results

Calculation Results

Actual Torque Applied (Nm): 0.00

Calculation Formula

Actual Torque = Torque Setting × Extension Factor

Where:
Actual Torque = Torque applied to the fastener
Torque Setting = Torque wrench setting in Nm
Extension Factor = 1 + (Extension Length / 50)

Torque Wrench Extension Calculator Usage Guide

Learn how to use the Torque Wrench Extension Calculator and understand its importance in maintaining proper torque application.

How to Use the Calculator

  1. Enter the torque setting of your torque wrench in Nm (Newtons per meter).
  2. Enter the length of the extension rod you are using in centimeters.
  3. Click the "Calculate" button to determine the actual torque applied to the fastener.
  4. The calculator will display the actual torque and explain the formula used.

Why Use an Extension Rod?

Extension rods are used to increase the leverage of a torque wrench, allowing for the application of higher torque values. However, using an extension rod affects the actual torque applied to the fastener. This calculator helps you account for this by providing the corrected torque value.

Important Considerations

  • Always use extension rods that are rated for the torque range of your torque wrench.
  • The extension length should be measured from the point where the extension attaches to the torque wrench to the point where it contacts the fastener head.
  • Never exceed the maximum torque capacity of your torque wrench.