---
title: "WireSizer - DC Voltage Drop - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "WireSizer is the fast, accurate, and easy-to-use DC wire size calculator for choosing the correct wire gauge every time.  Simply select your DC voltage, current, and total circuit length with flips of"
---

# WireSizer - DC Voltage Drop — United States
> Wire Gauge & Size Calculator

![WireSizer App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/76/80/d1/7680d1e0-a3ef-ef2c-699f-2d20f453a276/AppIcon-0-0-1x_U007emarketing-0-7-0-85-220.png/400x400bb.png)

**Developer:** [Juggernaut Technology](https://apptail.io/developer/juggernaut-technology-Gzbb) (United States)
**Category:** Utilities
**Rating:** 4.5/5 (226 ratings)
**Price:** $4.99
**Bundle ID:** com.juggernaut-tech.wiresizer
**Store:** Apple App Store
**Country:** United States
**Version:** 3.35 (released 2026-08-29)
**Original Release:** 2012-01-18

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id494748550)
**AppTail Page:** [https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/united-states](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/united-states)

## WireSizer Description
WireSizer is the fast, accurate, and easy-to-use DC wire size calculator for choosing the correct wire gauge every time.

Simply select your DC voltage, current, and total circuit length with flips of your finger. No keyboard required. WireSizer instantly calculates the correct wire gauge for the Voltage Drop percentage you need.

WireSizer is ideal for:
• Boats and marine electrical systems
• RVs, trucks, and cars
• Radios and electronics
• Solar power and battery-based DC systems
• Any low-voltage DC system up to 60 VDC

Suitable for both professionals and DIY users.

WireSizer automatically calculates the minimum wire size required for your circuit (assuming copper wire), taking Voltage Drop into account for installation and temperature conditions. Results are checked against current-carrying capacity (ampacity) limits to prevent using unsafe undersized wire.

Supported values:
 • Voltage up to 60 VDC
 • Current up to 500 amps
 • Total circuit length up to 600 feet or 200 meters
 • Voltage Drop 1 to 20 percent
 • AWG wire 18 gauge to 4/0, plus 250 & 300 kcmil
 • SAE wire 18 gauge to 4/0
 • Metric wire 0.75 mm² to 150 mm²

WireSizer allows you to fine-tune calculations based on real-world installation conditions:
 • Engine compartment or other high-temperature environments
 • Sheathed, bundled, or conduit-run wire
 • Wire insulation ratings from 60°C to 200°C

WireSizer also includes a Materials List so you can record and review all of your wire selections in one place.

WireSizer calculates DC wire sizes in accordance with ABYC E-11 (July 2025). For typical low-voltage DC circuits, results generally correspond with ISO 13297:2020.

Results are a design aid; final wire selection and installation compliance remain the installer's responsibility. 

Number and decimal formatting will follow your device's regional and language settings.

WireSizer works without an internet connection and contains no ads.

Designed exclusively for DC circuits - not for use with AC circuits.

Results are a design aid. Final wire selection and installation compliance remain the installer's responsibility.

WireSizer will cost you less than the wire scraps you probably throw away at the end of the day.

## WireSizer Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/1d/cb/79/1dcb791c-4b13-1fd6-20b7-53726a560316/mzl.sisczzwf.png/640x960.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/12/18/57/121857d0-d8b0-05f3-9a54-01c0463bab8e/mzl.bqzpppmt.png/640x960.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/25/f0/be/25f0be24-80bf-75c8-a3e2-b6093561e2ce/mzl.yotpodun.png/640x960.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/59/3c/d6/593cd647-ec2c-70a7-9cd9-d4534886ca26/mzl.mruyixyl.png/640x960.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/5a/29/7f/5a297fb9-e52e-3d36-aa89-f0bfd6c13a1c/mzl.wkhqlgdq.png/640x960.png)

## WireSizer Rating Breakdown in United States
- 5 stars: 182 (81%)
- 4 stars: 16 (7%)
- 3 stars: 3 (1%)
- 2 stars: 6 (3%)
- 1 stars: 19 (8%)

## WireSizer Reviews in United States

### *---- "Super bad investment"
There is no real calculation… all has no utility, totally useless.
-- jamescater, 2023-11-12

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

### *---- "Only does DC current."
Lame
-- seasnake2022, 2022-04-15

### ***** "Easy to use and accurate"
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.
-- 24Spokes, 2022-02-20

### ****- "Very helpful, limited to 50VDC"
I use this app all the time! Would use it even more if it could support higher voltages. I’d like to see at least 150vdc, and 240vac. Thanks for the useful tool!
-- Cazabuilds, 2021-05-28

### ***** "Works well, some limitations"
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.
-- solar installs, 2019-08-16

### ***** "Wire Sizer"
Awesome
-- Buck Mule, 2019-07-13

### *---- "Solar electrician"
This is a waste of my money
-- /&-) d, 2018-12-20

### ***** "Great app!"
This app is great for a non-electrician to use!
-- Blake412, 2018-09-06

### ***** "Way cool and useful for projects!"
Working on solar for my trailer. I’m confident I’ve got the right wire sizes.
-- Jim98166, 2018-06-23

[View all WireSizer reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)



## WireSizer Discovered Keywords
- wiresizer
- sae wcx

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## WireSizer Available In
- [United States](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/united-states)
- [Canada](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/canada)
- [Australia](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/australia)
- [United Kingdom](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/united-kingdom)
- [Netherlands](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/netherlands)
- [Denmark](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/denmark)
- [Norway](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/norway)
- [Germany](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/germany)
- [Sweden](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/sweden)
- [New Zealand](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/new-zealand)
- [Mexico](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/mexico)
- [Spain](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/spain)
- [Hong Kong SAR China](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/hong-kong)
- [South Africa](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/south-africa)
- [Saudi Arabia](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/saudi-arabia)
- [Ireland](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/ireland)
- [United Arab Emirates](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/united-arab-emirates)
- [China](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/china)
- [Colombia](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/colombia)
- [Czechia](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/czechia)
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- [France](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/france)
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- [Malaysia](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/malaysia)
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- [Brazil](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/brazil)
- [Brunei](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/brunei)
- [Belgium](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/belgium)
- [Peru](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/peru)
- [Philippines](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/philippines)
- [Pakistan](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/pakistan)
- [Poland](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/poland)
- [Ukraine](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/ukraine)
- [Argentina](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/argentina)
- [Russia](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/russia)
- [Algeria](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/algeria)
- [Ecuador](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/ecuador)
- [Estonia](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/estonia)
- [Egypt](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/egypt)
- [Dominican Republic](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/dominican-republic)
- [Azerbaijan](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/azerbaijan)
- [Austria](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/austria)
- [Cyprus](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/cyprus)
- [Singapore](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/singapore)
- [Chile](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/chile)
- [Hungary](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/hungary)
- [Cayman Islands](https://apptail.io/app/wiresizer-dc-voltage-drop-hNic/cayman-islands)

---

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