Mechanical Design

ISO Fit and Tolerance Calculator

Use ISO Fit and Tolerance Calculator for fast preliminary engineering calculations and practical technical checks.

Member workspace

Save the calculation, connect it to a project, export technical output

When signed in, you can save used tools to history, send them as notes to project management and print a PDF output.

My historyOpen saved calculations
Sign in to use results with project records.

What is ISO Fit and Tolerance Calculator used for?

ISO Fit and Tolerance Calculator is a free Tooldur calculator prepared for quick preliminary checks in Mechanical Design.

How to use it

Enter the required values, check the units and use the result for preliminary engineering evaluation.

  • Check the input values.
  • Verify the result with standards, catalogs or engineering review.
  • Do not use it as the only final decision source for critical work.

Similar tools

Other tools in the same category that may be useful.

Sheet/Plate Weight Calculator
Use Sheet/Plate Weight Calculator for fast preliminary engineering calculations and practical technical checks.
Open →
Tap Drill and Thread Callout
Use Tap Drill and Thread Callout for fast preliminary engineering calculations and practical technical checks.
Open →
Surface Roughness Guide
Use Surface Roughness Guide for fast preliminary engineering calculations and practical technical checks.
Open →
Technical Drawing Callout Generator
Use Technical Drawing Callout Generator for fast preliminary engineering calculations and practical technical checks.
Open →