# Circuit Wizard

> Reference

Canonical page: [https://chrome-stats.com/d/id576865083](https://chrome-stats.com/d/id576865083)

## Overview

- **ID:** `id576865083`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Blue Sea Systems
- **Category:** Reference
- **Rating:** 3.10 / 5 (19 ratings)
- **Version:** 1.3
- **Last updated:** 2015-07-23
- **First published:** 2012-11-14
- **Size:** 4.47 MB
- **Data as of:** 2026-09-04
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/circuit-wizard/id576865083)
- **Website:** [http://cw.bluesea.com](http://cw.bluesea.com/)

## Description

Circuit Wizard is designed to help electricians and enthusiasts determine wire sizing for a given installation based upon specific parameters using ABYC and Blue Sea Systems specifications.

Once a wire size is known you can then use that information to search for products offered by Blue Sea Systems in order to protect your circuit.

Based upon the popular web application located at http://cw.bluesea.com/, this version is designed to be run completely offline which should be useful in situations where an internet connected computer is not available.

## Rankings

- #297,666 — Overall

## Review summary

Circuit Wizard is praised as easy to use and fast for sizing DC wiring, especially for boats. Reviewers note it saves time by calculating wire sizes from voltage drop or ampacity and is a must-have tool for installers. However, users frequently report stability issues (crashes/freezes when selecting functions) and a lack of 48V support and limited voltage options (no 110V). Some request more customization (higher insulation temps, custom values). Overall it’s a promising, time-saving utility that needs bug fixes and broader voltage coverage.

### Pros

- Easy to use and intuitive interface
- Very quick and easy to determine the right wire size based on voltage drop or ampacity
- Useful tool for boat installers/electricians; a must-have that saves time
- Helps avoid digging through standard tables and speeds up sizing

### Cons

- Missing 48V calculator / lack of 48V support
- Crashes or freezes when selecting functions; stability issues
- Limited voltage options (no 110V; only 12/24/32)

## Similar extensions and apps

- [DC Wire Sizer](https://chrome-stats.com/d/id629190351) — 5.00 / 5
- [WireCalculator](https://chrome-stats.com/d/id6748025416)
- [Wire Guide Watch](https://chrome-stats.com/d/id6795265854)
- [Circuit Wiring Simulator](https://chrome-stats.com/d/id6763458134)
- [WireSizer - DC Voltage Drop](https://chrome-stats.com/d/id494748550) — 4.50 / 5
- [Wire Gauge Calculator: Cable](https://chrome-stats.com/d/id6752443870)
- [WireGo](https://chrome-stats.com/d/id6746126774) — 3.70 / 5
- [ElectricalWiringPro](https://chrome-stats.com/d/id522244565) — 3.40 / 5
- [Cable Size Calculators](https://chrome-stats.com/d/id6471071271)
- [Wire & Load](https://chrome-stats.com/d/id6768856542)
- [Cable Calc](https://chrome-stats.com/d/id1044306956)
- [Sparky's CircKit](https://chrome-stats.com/d/id6612010334)

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id576865083)