Torque Wrench Adapter - Extension Indicated Torque Calculator

Engineering Calculators | Torque Wrench Adapter Extension Arm Equations and Proof

This calculator will determine the actual torque applied when using an adapter on your torque wrench. See above link for proof and description of variables.

How to use this calculator:

1. Measure your torque wrench from center of adapter drive to where you will apply force (center of hand location), this is = L.
2. Measure from center of torque wrench adapter drive to center of tool extension adapter, this is = E.
3. Determine desired torque applied to fastener or whatever, this is equal to T.
4. Enter numbers press "Update".

Indicated Torque (Y) is what your torque wrench should read to achieve the desired applied torque.

Make sure adapter is configured as shown on torque wrench illustration.

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