# Wire (AWG) Calculator

> A&P Mechanic Toolbox

Canonical page: [https://chrome-stats.com/d/id1526471471](https://chrome-stats.com/d/id1526471471)

## Overview

- **ID:** `id1526471471`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Neil Rohan
- **Category:** Reference
- **Rating:** 4.20 / 5 (6 ratings)
- **Version:** 6.1.0
- **Last updated:** 2026-07-30
- **First published:** 2020-08-26
- **Size:** 24 MB
- **Data as of:** 2026-09-05
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/wire-awg-calculator/id1526471471)
- **Privacy policy:** [https://turbosoftsolutions.com/privacy](https://turbosoftsolutions.com/privacy)

## Description

Assists the FAA certificated Airframe and Powerplant (A&P) mechanic in determining the correct American Wire Gauge (AWG) wire size for given conditions.

AWG Calculator



IMPORTANT NOTICE: THIS CALCULATOR IS *NOT* A GENERAL PURPOSE WIRE GUAGE CALCULATOR. 

IT IS INTENDED SOLELY FOR FAA REGISTERED AIRCRAFT WIRING, LIMITED TO THE FOLLOWING APPROVED VOLTAGES: 14VDC, 28VDC, 115VAC AND 200VAC.



This app assists the aircraft airframe and powerplant (A&P) mechanic in determining the correct American Wire Gauge (AWG) wire size for given conditions, according to procedures outlined in FAA Publication AC 43-13 1B (Acceptable Methods, Techniques, and Practices - Aircraft Inspection and Repair), Chapter 11. Conditions include circuit length, current, voltage, wire temperature (known or estimated) and derating factors for both altitude and wire bundle size/loading percentage.


The app also contains utilities that enable the aircraft mechanic to determine the following parameters without hands-on use of the AC 43-13 (when field/shop conditions make it impractical). Figures are referenced:



- Maximum Wire Length (standard temperature). 
-- Input parameters: circuit voltage, current, current flow and AWG. 
-- Output: L1.
-- Ref: AC 43-13 1B, Fig 11-2/3 



- Maximum Current (standard temperature). 
-- Input parameters: circuit voltage, current flow, wire length and AWG. 
-- Output: Max Current.
-- Ref: AC 43-13 1B, Fig 11-2/3 



- Altitude Deration Factor. 
-- Input parameter: Max Altitude. 
-- Output: Altitude Deration Factor.
-- Ref: AC 43-13 1B, Fig 11-5



- Bundle Deration Factor. 
-- Input parameters: Wire Count and Loading Percentage 
-- Output: Bundle Deration Factor.
-- Ref: AC 43-13 1B, Fig 11-5



- IMAX (elevated temperature). 
-- Input parameters: ambient temperature, conductor temperature rating and AWG. 
-- Output: IMAX.
-- Ref: AC 43-13 1B, Fig 11-4a/b



- Bundle Builder (NEW!)
  -- Input parameters: number of wires, awg sizes, wire currents, maximum altitude, ambient temperature, wire rating, loading factor
  -- Output: Bundle IMAX (derated for bundle and altitude) with table for IMAX per wire.
  -- Ref: AC 43-13 1B, Fig 11-4a/b



When a input/output parameters exceed chart limits, data is extrapolated and an appropriate warning ("** extrapolated data") is shown.



Disclaimer

The user of AWG CALCULATOR for any specific application without an independent verification of its accuracy does so at his/her own risk and assumes any and all liability resulting from such use. No warranty is offered as to the accuracy of results. Users should have a thorough understanding of the relevant theoretical criteria.

## Rankings

- #425,760 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id1526471471)