WireSizer

Name: WireSizer
Price: 4.99 USD
Rating: 4.5 (219 reviews)
Author: Juggernaut Technology, Inc.

DC Voltage Drop Calculator

$4.99 · Designed for iPad

219 Ratings
Ages

4+
Years
Category

Utilities
Developer

Juggernaut Technology, Inc.
Language

EN
English
Size

2
MB

Also Included In

Marine Surveyor Bundle

Reference

The simplest, most intuitive, and surprisingly fun way to find the right wire size for your job! Perfectly suited for most DC applications up to 60 Volts. WireSizer makes it easy to choose the right wire size every time. It's fast, accurate, and intuitive! Simply set your DC voltage, current, and circuit length with quick flicks of your finger — no keyboard needed! Instantly see the correct wire gauge for your desired voltage drop. Perfect for boats, RVs, trucks, cars, radios, and other low-voltage DC systems up to 60 VDC. Ideal for both professionals and DIY enthusiasts. Others agree! "This app is a joy to use! ...you'll be able to get the right wire gauge to use every time. Nice." - Cruising World Blog "It is a must have for your electrical toolbox." - i-marineapps Using properly sized wire is important! Undersized wire can lead to equipment malfunction, or even fire! Oversized wire will add to cost and can be harder to work with. And unlike "online" wire gauge calculators, WireSizer will work wherever or whenever you need it. After you select your circuit details, WireSizer will automatically calculate the minimum wire size for different percentages of voltage drop under normal or "engine compartment" operating conditions using copper wire. Wire gauge recommendations include commonly available sizes in AWG, SAE and ISO/Metric. WireSizer allows you to select voltages up to 60 VDC, current up to 500 amps, and total circuit length in feet or meters up to 600 feet (or 200 meters). Results calculated are for voltage drops between 1 and 20 percent (which you can "flip" through to find the one which is best for your purpose), and wire sizes between 4/0 and 18 gauge AWG and SAE, and 0.75 to 92 mm. WireSizer will also let you select whether the wire is going to run through an engine compartment or a similarly "hot" environment, is sheathed, bundled, or in conduit, and select the wires insulation rating (60C, 75C, 80C, 90C, 105C, 125C, 200C) to fine tune your results. And finally, the voltage drop calculation results are compared with the safe current carrying capacity (or "ampacity") of the wire, to make sure the wire suggested is suitable. And for your convenience, WireSizer also includes a "Materials List" for you to record all of your wire selections. WireSizer gauge calculation results meet ABYC E11 specifications (standard requirement for boats, excellent guidelines for other uses) provided you have clean connections, and are using good quality wire. ABYC specifications meet or exceed NEC where applicable, and correspond to ISO/FDIS. * * * NOT FOR USE WITH AC CIRCUITS * * * If you have any questions (or complaints!), please email us. Ad free, and will cost less than the wire scraps you probably throw away at the end of the day.

Ratings & Reviews

4.5

out of 5

219 Ratings

Easy to use and accurate
02/20/2022

24Spokes
I am a Marine Engineer and I use this app at my desk and in the field to run “how to” calculations to determine the wire size required for a particular voltage, load current and circuit run. The spinner wheels make it very easy to enter the data and the drill down that is available when the results tapped is an excellent bonus. My favorite wire sizing app.
Easy to use and accurate
02/20/2022

24Spokes

I am a Marine Engineer and I use this app at my desk and in the field to run “how to” calculations to determine the wire size required for a particular voltage, load current and circuit run. The spinner wheels make it very easy to enter the data and the drill down that is available when the results tapped is an excellent bonus. My favorite wire sizing app.
Works well, some limitations
08/16/2019

solar installs
Overall it’s a very good tool. I use it to size DC wires runs for solar. I have verified accuracy with manual calculations of voltage drop. It’s limited to 50vdc maximum so works well for up to 48vdc battery banks but can’t use it for solar panels in series as voltage exceed 50v limit.

Developer Response
The latest version of WireSizer now supports up to 60 VDC. Suitable for charging systems (and solar) for 48vdc battery systems. Thanks for the review!
Works well, some limitations
08/16/2019

solar installs

Overall it’s a very good tool. I use it to size DC wires runs for solar. I have verified accuracy with manual calculations of voltage drop. It’s limited to 50vdc maximum so works well for up to 48vdc battery banks but can’t use it for solar panels in series as voltage exceed 50v limit.
Developer Response 03/01/2022
The latest version of WireSizer now supports up to 60 VDC. Suitable for charging systems (and solar) for 48vdc battery systems. Thanks for the review!
Great easy to use wire gauge calculator
03/04/2017

Whiz 3
I use this app in my marine electrical business and find it a valuable tool. No having to lookup or calculate wire thickness while running wire.
Great easy to use wire gauge calculator
03/04/2017

Whiz 3

I use this app in my marine electrical business and find it a valuable tool. No having to lookup or calculate wire thickness while running wire.
Terrific app! Simple, as it ought to be
06/09/2022

LaughingSailor
I use it daily in my boat electrical work. I would like an AC calculation for higher voltages, in future versions of the app.
Terrific app! Simple, as it ought to be
06/09/2022

LaughingSailor

I use it daily in my boat electrical work. I would like an AC calculation for higher voltages, in future versions of the app.

+ Performance, User Interface, and Stability improvements. If you have any questions, problems, or comments, please contact us at support@WireSizer.com!