Torque Wrench Extension Calculator

Torque Wrench Extension Calculator:

Enter the values of torque, T_2(N.m), original length, L_1(cm) and new length, L_2(cm) to determine the value of Adjusted Torque, T_1(N.m).

Enter Torque:		N.m
Enter Original Length:		cm
Enter New Length:		cm
Result – Adjusted Torque:		N.m

Torque Wrench Extension Formula:

A torque wrench extension is a tool that allows users to extend the reach of a torque wrench, enabling better access to bolts or nuts in hard-to-reach areas. By using an extension, users can apply a torque force to fasteners that are located deeper or farther away than the standard length of the wrench allows. The extension essentially lengthens the handle of the wrench, altering the applied force and affecting the torque reading.

Torque is the rotational force applied to an object, and it is directly proportional to the length of the wrench. When an extension is added, the force applied by the user is modified, and the formula for calculating torque must account for the new length. The relationship between the original torque wrench length and the extension length determines the total torque that is applied to the fastener.

This formula ensures that the user can calculate the exact torque applied when using the wrench with the extension, which is critical for achieving the required fastening specifications. Proper use of a torque wrench extension is essential for ensuring accuracy and preventing over-tightening or under-tightening.

Adjusted Torque, T_1(N.m) in Newton metres with the extension is equal to the torque, T_2(N.m) in Newton metres measured without the extension, multiplied by the ratio of the original length, L_1(cm) in centimetres to the new length, L_2(cm) in centimetres.

Adjusted Torque, T_1(N.m) = T_2(N.m) * (L_1(cm) / L_2(cm))

T_1(N.m) = adjusted torque in Newton metres, N.m.

T_2(N.m) = torque in Newton metres, N.m.

L_1(cm) = original length in centimetres, cm.

L_2(cm) = new length in centimetres, cm.

Torque Wrench Extension Calculation:

1. A torque wrench without an extension applies a torque 50Nm. If the original length 30cm and the length with the extension 60cm, calculate the adjusted torque.

Given: T_2(N.m) = 50Nm, L_1(cm) = 30cm, L_2(cm) = 60cm.

Adjusted Torque, T_1(N.m) = T_2(N.m) * (L_1(cm) / L_2(cm))

T_1(N.m) = 50 * (30 / 60)

T_1(N.m) = 25N.m.

2. A torque wrench with an extension applies a torque 100Nm. If the original length 25cm and the length with the extension 50cm, calculate the original torque without the extension.

Given: T_1(N.m) = 100N.m, L_1(cm) = 25cm, L_2(cm) = 50cm.

Adjusted Torque, T_1(N.m) = T_2(N.m) * (L_1(cm) / L_2(cm))

T_2(N.m) = T_1(N.m) * (L_2(cm) / L_1(cm))

T_2(N.m) = 100 * (50 / 25)

T_2(N.m) = 100 * 2

T_2(N.m) = 200N.m.