Features & Capabilities

Assists the aircraft 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.

User Growth & Download Statistics

App
By:
Neil Rohan
Rating:
4.20
(6)
Version:
5.2 Last updated: 2025-09-29
Version code:
878499264
Creation date:
2020-08-26
Compatible devices:
Size:
17.64MB
URLs:
Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-06-08
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
Neil Rohan
Apple Apps Store
https://apps.apple.com/us/app/wire-awg-calculator/id1526471471

User Reviews

An easy way to check yourself to make sure you’ve got the right wire gauge selected.
by St*****, 2021-04-15

A definite need if your working on aircraft or learning to work on aircraft! Have also used on my at home DIY projects.
by As*****, 2020-11-09
View all user reviews ›

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