# Bolt Pattern & PCD Calculator

> Bolt circle coordinates, wheel PCD finder, flange bolt reference, mm/in convert.

Canonical page: [https://chrome-stats.com/d/com.k4y.boltpatterncalculator](https://chrome-stats.com/d/com.k4y.boltpatterncalculator)

## Overview

- **ID:** `com.k4y.boltpatterncalculator`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** k4y apps
- **Category:** TOOLS
- **Downloads:** 27
- **Version:** 1.0.2
- **Last updated:** 2026-08-24
- **First published:** 2026-07-18
- **Publisher country:** US
- **Size:** 9.65 MB
- **Data as of:** 2026-09-05
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.k4y.boltpatterncalculator)
- **Website:** [https://k4yapp.com](https://k4yapp.com/)
- **Privacy policy:** [https://k4yapp.com/privacy/](https://k4yapp.com/privacy/)

## Description

Bolt Pattern &amp; PCD Calculator lays out hole coordinates for any bolt circle, backs out pitch circle diameter from a stud measurement, and puts ANSI B16.5 flange bolting data in your pocket - for machinists, mechanics, wheel fitment, and pipefitters.<br><br>No internet. No account. Everything runs on the device.<br><br>BOLT CIRCLE<br>- Enter hole count (2-36), bolt circle diameter, and a start angle<br>- Get X/Y coordinates for every hole, measured from center<br>- Angular spacing and chord distance between adjacent holes<br>- Copy the table to your clipboard or share it as a CSV coordinate sheet<br><br>WHEEL PCD FINDER<br>- Enter bolt count (4/5/6/8) and the measured center-to-center distance between two adjacent studs<br>- Back out the pitch circle diameter<br>- Dual-pattern hint (metric to inch) when there&#39;s a clean equivalent<br>- Reference table of common wheel bolt patterns with example vehicle makes<br><br>FLANGE BOLTS<br>- ANSI B16.5 reference for nominal pipe sizes 1/2&quot; through 12&quot;<br>- Class 150 and Class 300 bolt count, bolt size, and bolt circle diameter side by side<br>- Full reference table for every size<br><br>CONVERT<br>- Millimeter/inch converter in both directions<br>- Fraction output rounded to the nearest 1/16&quot;<br>- Common bolt-pattern equivalents at a glance<br><br>Reference values (wheel patterns, ANSI B16.5 flange data) are commonly-published figures meant as a practical starting point - always confirm against the actual part, hub, or flange spec before ordering, fabricating, or bolting up.<br><br>This app is ad-supported. Sharing a coordinate sheet as CSV may show a short video ad; if no ad is available your coordinate sheet still shares.

## Rankings

- #2,480,628 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_ADSERVICES_TOPICS`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `android.permission.WAKE_LOCK`
- `com.android.vending.CHECK_LICENSE`
- `com.google.android.gms.permission.AD_ID`
- `com.k4y.boltpatterncalculator.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.k4y.boltpatterncalculator)