Bolt Hole Circle Calculator is a simple app to calculate coordinates of a bolt hole circle given the number of holes and X Y coordinates to begin.

Great for Machinist, Engineers, CNC Operators.

This app was developed by ITAMCO, please visit for more information

What’s New

Version 2.0.1

added compatibility for devices iOS 9.0+

Ratings and Reviews

4.6 out of 5
18 Ratings

18 Ratings

99centswasted ,

Bolt hole calculator

Very simple. Works great.

DeathDealer1 ,

Not working

It did work on iOS 11 until update now it leaves keyboard on screen, which hides info
They finally fixed the app. Works well now. Be nice if they would bring all their other paid apps up to date.

Developer Response ,

Thank you for bringing this to our attention. We have submitted a new version to correct this issue and it should hit the app store as soon as it is reviewed by Apple.

Bridge_Port ,

Used to work great......

When I first got this app it worked great but for the last 6 months or so and through a second phone it doesn’t. Upon entering your number of holes and radius after hitting calculate the app just closes.

App Privacy

The developer, ITAMCO, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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