Bolt Torque Calculator

Bolt Torque Calculator calculator can be used for calculating the torque required to achieve the desired tension in a bolt.

Input Parameters

Calculation Results

Calculation Formula

Torque (T) = K * D * √T

Where:
T = Desired Tension (lbs)
D = Bolt Diameter (inches)
K = Material Factor (Steel = 0.2, Aluminum = 0.17, Titanium = 0.15)

Bolt Torque Calculator Calculator Usage Guide

Learn how to use the Bolt Torque Calculator calculator and its working principles

How to Use the Bolt Torque Calculator

  1. Enter the bolt diameter in inches.
  2. Select the material of the bolt from the dropdown menu.
  3. Enter the desired tension in pounds (lbs).
  4. Click the "Calculate" button to compute the required torque.
  5. The calculated torque will be displayed in pounds-inches (lbs-in).

Understanding the Formula

The torque required to achieve the desired tension in a bolt is calculated using the formula:

Torque (T) = K * D * √T

Where:

  • T = Desired Tension (lbs)
  • D = Bolt Diameter (inches)
  • K = Material Factor (0.2 for steel, 0.17 for aluminum, 0.15 for titanium)

Important Notes

Ensure that the bolt material is selected correctly to obtain accurate results. The desired tension should be within the safe operating limits of the bolt.