# Balancing Calculator

> Calculate ISO 21940 Grades, Measurement Uncertainty, Tooling Compensation

Canonical page: [https://chrome-stats.com/d/com.balanceandtest.calculator](https://chrome-stats.com/d/com.balanceandtest.calculator)

## Overview

- **ID:** `com.balanceandtest.calculator`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** BalanceAndTest
- **Category:** TOOLS
- **Downloads:** 224
- **Version:** 1.5
- **Last updated:** 2026-04-15
- **First published:** 2026-04-15
- **Publisher country:** GB
- **Size:** 39 MB
- **Data as of:** 2026-09-11
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.balanceandtest.calculator)
- **Website:** [https://balanceandtest.com/](https://balanceandtest.com/)
- **Privacy policy:** [https://balanceandtest.com/privacy-policy/](https://balanceandtest.com/privacy-policy/)

## Description

Balance Calculator by Balance &amp; Test is a professional-grade toolkit for rotating machinery engineers, vibration<br>  analysts, and balancing technicians. Perform essential rotor balancing calculations quickly and accurately, right from<br>   your phone or tablet.<br><br>  ISO 21940 Balance Tolerance Calculator<br>  Determine permissible residual unbalance to ISO 21940 standards. Select from all standard balance grades — from G0.4<br>  (precision gyroscopes) to G4000 (slow marine drives). Supports both static and dynamic (2-plane) balancing with<br>  adjustable mass distribution between correction planes when the rotor centre of gravity is offset.<br><br>  Relocation Test<br>  Validate your balancing equipment and setup with 2-position or 3-position relocation tests. Enter magnitude and angle<br>  readings at each position and the app calculates the mean error vector and true unbalance, with a polar plot showing<br>  all readings, error, and corrected vectors at a glance.<br><br>  Measurement Uncertainty Analysis<br>  Assess the repeatability of your balancing measurements with statistical analysis based on repeated balance runs.<br>  Supports single-plane and dual-plane rotors. Enter multiple readings and view the mean vector, 95% certainty radius, and pass/fail status against your tolerance limits — all displayed on interactive radar plots.<br><br>  Additional Features<br>  - Switch between metric (mm, kg, g·mm) and imperial (in, lb, oz·in) units globally<br>  - Clean, intuitive interface designed for use in workshop and field environments<br>  - All calculations performed locally on your device — no internet connection required<br>  - No ads, no tracking, no data collection<br><br>  Built by Balance &amp; Test Machinery Group — making balancing and testing simpler, more reliable, and more affordable for<br>   everyone.

## Rankings

- #1,666,806 — Overall

## Permissions and access

### Permissions

- `com.android.vending.CHECK_LICENSE`
- `com.balanceandtest.calculator.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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