# MetroX ISO Fit Calculator — ISO 286 Limits & Fits

> ISO 286 Limits & Fits (iPhone/iPad app by Vinicio Araujo.)

- Source: https://appshunter.io/ios/app/metrox-iso-fit-calculator/id6758515960 (this page in markdown: same URL + `.md`)
- Developer: [Vinicio Araujo](https://appshunter.io/developer/1861038277)
- Category: Education, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.1 · 44 MB
- Languages: American English, Arabic, Czech, Danish, Dutch, Finnish, French (France), German (Germany), Greek, Hebrew and 20 more
- Released: 2026-02-12
- Data updated: 2026-06-03
- User reviews in markdown: https://appshunter.io/ios/app/metrox-iso-fit-calculator/id6758515960/reviews.md

## What is MetroX ISO Fit Calculator?

MetroX is an ISO fit calculator built for engineers who need answers fast. This ISO fit calculator delivers ISO 286 limits & fits for holes and shafts in seconds—so you can make confident choices in design, machining, and inspection.

What you can do (ISO 286 limits & fits)
	•	Calculate hole and shaft limit sizes (min/max) from a nominal size and fit designation (e.g., H7/g6, H6/h5, F6/f6).
	•	See minimum and maximum clearance (or interference) instantly.
	•	Classify the fit type automatically: clearance, transition, or interference.
	•	Compare multiple fits quickly while iterating designs or checking drawings.

Typical use cases
	•	Mechanical design: validate tolerances before releasing drawings and avoid costly rework.
	•	Machining & tooling: quick shop-floor checks for hole limits, shaft limits, and expected clearance.
	•	Metrology & inspection: verify parts against ISO 286 limits during incoming/outgoing QC.
	•	Education & reference: learn how ISO fits behave across sizes and tolerance grades.

Why MetroX
	•	Fast: minimal inputs, instant results.
	•	Practical: focuses on the numbers you actually need (limits + clearance/interference).
	•	Reliable workflow: forward calculation + reverse fit selection.

FAQ

Does it support clearance and interference fits?
Yes—MetroX calculates min/max clearance or interference and classifies the fit type.

Can I start from a target clearance?
Yes—use the reverse workflow to pick a fit based on your target range.

Who is it for?
Mechanical engineers, machinists, toolmakers, inspectors, and students working with ISO 286.

Download MetroX and speed up your fit decisions today.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |



## Version history (last 2 releases)

### 1.0.6 — 2026-02-17

Bug fixes and improvements.

### 1.0.5 — 2026-02-12

No release notes.

## More apps by Vinicio Araujo

- [Meu Atestado](https://appshunter.io/ios/app/meu-atestado/id6756507067)
- [Who Starts? Turn Order](https://appshunter.io/ios/app/who-starts-turn-order/id6758178405)

All apps by Vinicio Araujo: https://appshunter.io/developer/1861038277

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-03.*