Fit Tolerance Calculator 1.9.0 - App Store

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About Fit Tolerance Calculator

The Fit Tolerance Calculator application calculates the fit tolerance of "hole" and "shaft" from the input diameter value. Fit tolerance is calculated based on ISO. Simply enter the diameter value, select the tolerance...

The Fit Tolerance Calculator application calculates the fit tolerance of "hole" and "shaft" from the input diameter value. Fit tolerance is calculated based on ISO. Simply enter the diameter value, select the tolerance range with the tolerance range button, select the tolerance class with the tolerance class button, and the fitting tolerance value of "hole" and "shaft" will be displayed. In addition, from the combination of the selected hole and shaft, we distinguish the type of fit (clearance fit, transition fit, interference fit). Then, calculate the minimum clearance and the maximum clearance, in the case of clearance in plus, and in case of interference it is written minus. Input diameter of 3150 mm or less is possible. However, the number of input digits is limited to 6 digits. The corresponding tolerance range and tolerance grade are as follows. 【Tolerance of ​​hole】 A, B, C, CD, D, E, EF, F, FG, G, H, JS, J, K, M, ZA, ZB, ZC * Note 1) A and B holes are not used for standard dimension 1 mm or less. * Note 2) JS 7 to JS 11 are rounded down to the decimal point so that IT / 2 becomes an integer of micrometer unit. * Note 3) The tolerance grade of J hole is IT6 to IT8 only. 【Tolerance of ​​shaft】 a, b, c, cd, d, e, ef, f, fg, g, h, js, j, k, m, n, p, r, s, t, u, v, x, za, zb, zc * Note 4) The a and b shaft are not used for standard dimension 1 mm or less. * Note 5) js 7 to js 11 are rounded down to the decimal point so that IT / 2 becomes an integer of micrometer unit. * Note 6) The tolerance grade of the j shaft is IT5 to IT8 only. 【Tolerance Grade】 IT 1 to IT 18 * Note 7) The tolerance grades IT14 to IT18 are not applied to the standard dimension of 1 mm or less. * Note 8) Tolerance values ​​of tolerance grades IT1 to IT5 for reference dimension exceeding 500 mm are provisional for experimental use.

Version History Modified the internal processing for screen display. 1.9.0 Sep 14 Minor improvements. 1.8.0 Jan 3 This update supports iOS 17.5. 1.7.0 07/30/2024 This update supports iOS16.2. 1.6.0 02/05/2023 Minor bug fixes 1.5.0 02/16/2022 Minor bug fixes 1.4.0 06/05/2021 Fixed a bug where some characters couldn't be seen in dark mode. 1.3.2 02/05/2021 Fixed a bug that some languages don't recognize the decimal point. 1.3.1 02/03/2021 What's New: Added a button to copy the calculated result. 1.3.0 02/01/2021 Minor bugs fixed. 1.2.2 11/21/2019 Minor bugs fixed. 1.2.1 11/16/2019 Added German, French, Spanish, Portuguese, Italian, Korean. 1.2.0 06/27/2019 Added Russian. 1.1.0 03/11/2019 Minor bugs fixed. 1.0.1 01/10/2019 1.0.0 01/04/2019

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Previous Versions

Here you can find the changelog of Fit Tolerance Calculator since it was posted on our website on 2023-09-05 23:13:26. The latest version is 1.9.0 and it was updated on 2026-10-13 11:48:04. See below the changes in each version.

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