# Car Audio Toolbox: Calculator

> Car Audio calculators: amp power, wire gauge, fuse, box volume, ohm load

Canonical page: [https://chrome-stats.com/d/com.caraudionest.toolbox](https://chrome-stats.com/d/com.caraudionest.toolbox)

## Overview

- **ID:** `com.caraudionest.toolbox`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Shahab Shaheen
- **Category:** AUTO\_AND\_VEHICLES
- **Downloads:** 44
- **Version:** 11.0.0
- **Last updated:** 2026-09-15
- **First published:** 2026-07-27
- **Publisher country:** PK
- **Size:** 5.90 MB
- **Data as of:** 2026-09-16
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.caraudionest.toolbox)
- **Website:** [https://caraudionest.com/](https://caraudionest.com/)
- **Privacy policy:** [https://caraudionest.com/privacy-policy/](https://caraudionest.com/privacy-policy/)

## Description

Car Audio Toolbox is an offline-first calculator and reference app built for car audio installers and DIY enthusiasts. No sign-in, no internet required for any calculation — every formula runs entirely on your device.<br><br>ELECTRICAL &amp; POWER CALCULATORS<br>• Amplifier Power Calculator — estimate RMS power output from voltage, current draw, and amplifier class<br>• Wire Gauge Calculator — find the right AWG for your amp&#39;s power and ground wiring<br>• Fuse Size Calculator — size a fuse that protects your wire, not just your amp<br>• Ohm / Impedance Load Calculator — series, parallel, and series-parallel speaker wiring<br>• Amplifier Gain Setting Calculator — a calculated starting point before fine-tuning with a meter<br>• Voltage Drop Calculator — check real-world voltage drop for a chosen wire run<br>• Battery Runtime Calculator — estimate runtime for AGM or lithium battery banks<br><br>BOX DESIGN CALCULATORS<br>• Sealed Box Volume Calculator — net internal volume from your box dimensions<br>• Ported Box Volume Calculator — net volume accounting for port displacement<br>• Port Length Calculator — tune a round or slot port to your target frequency<br>• Slot Port Area Calculator — check port area against a port-noise guideline<br><br>REFERENCE &amp; LEARNING<br>• Speaker &amp; Subwoofer Wiring Diagrams — series, parallel, and dual-voice-coil configurations<br>• Car Audio Glossary — 30+ plain-language definitions, from RMS to Xmax<br>• Troubleshooting Guide — step-by-step checks for no-power, no-sound, and noise issues<br>• Installation Checklist — a phase-by-phase safety checklist for your next install<br><br>WHY CAR AUDIO TOOLBOX<br>• Works completely offline — every calculator runs on-device<br>• No account, no sign-up required<br>• Clear assumptions and safety notes on every result, not just a bare number<br>• Light, dark, and system theme support<br>• Built for both first-time installers and experienced enthusiasts<br><br>Car Audio Toolbox is a planning and reference tool. Always confirm critical specs like fuse ratings and wire gauge against your equipment&#39;s manual, and have complex installs reviewed by a qualified installer.<br><br>Have feedback or a formula suggestion? We&#39;re actively improving the app — your input shapes what gets built next.

## Rankings

- #2,311,278 — 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.caraudionest.toolbox.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`
- `com.google.android.gms.permission.AD_ID`

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