• Torque Calculator 1
  • Torque Calculator 2
  • Torque Calculator 3

Torque Calculator

Calculate the maximum torque and load for different types of bolts:
BABSFBSWMetric CoarseUNC BS970UNF BS970UNC ASTMUNF ASTMMach. Screw

The calculated values are the maximum recommended values, based on 90% of yield.

If your bolt is not listed, enter the values of your bolt by hand.

Category : Tools

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Reviews (9)

Mar. A. Feb 13, 2021     

first I thought it's just got imperial threads and was ready to uninstall it but then I found I was wrong... simple and effective app. please add some more metric standards and some presets for the friction coefficient that may help people who don't have idea of its value like I do.

Dan. B. Sep 23, 2021     

Only designed for max torque to shear the bolt. It doesn't take into account parent material. If I have an m12 8.8 bolt threading into 8mm think aluminium how many Nm do I use? This app can't say

L33. Oct 22, 2021     

Good, but needs presets for fiction. Like dry, oiled, loctite and anti seize

Swa. Jan 3, 2020     

Seems a good thing. I also would like to see metric fine on the app.

Ala. z. May 9, 2021     

It's a good app. For fast conversation

Jac. Z. Oct 3, 2019     

Not bad but there is no metric fine

Dus. M. Aug 6, 2017     

The friction coefficient is important. The default of 0.14 is an ok value for a lubricated thread. For users less familiar with bolted joint design, a drop down menu with standard friction coefficients would be helpful. The idea of a calculator app should be to have all of the info quickly accessable to a busy mechanic in the field without having to look up values elsewhere. Unfortunately, many joints are installed unlubricated in real world applications. Therefore, the user should at least be alerted to the difference.

you. a. y. Jul 18, 2017     

Good app, but would you please provide your reference for the calculated tourqe values as it is so important to know the origin of the information.

Nar. M. Aug 29, 2018     

Love it. Very good. Thank you.