Stop Guessing Wire Sizing.
Size & Bid in 60 Sec. Protect Your Margins.
The ultimate on-site electrical estimating tool. Built by contractors, for contractors. Upload your local parts price sheet, run wire voltage drop and conduit fill math on your phone in the mud, and close jobs before your competition even gets home to open Excel.
Wire Sizer & Voltage Drop
Test the ease and speed right now
100k+ Runs
Sized Globally
NEC Aligned
Conduit & Ampacity Rules
Under 2 Minutes
Average Proposal Generation
$8,000+ Saved
Per Contractor in Inspection Re-runs
Why Manual Calculations are Guzzling Your Electrical Profits
For electrical contractors, sizing wire runs and conduit systems is the highest-risk activity in the bidding cycle. One code error can trigger failed municipal inspections, requiring complete rip-outs and re-pulls.
- The Voltage Drop Pitfall: Sizing conductors too small for long feeder runs results in unacceptable voltage drop. The inspector will fail the installation, forcing you to repurchase and replace thousands of dollars in copper wire.
- Conduit Over-Fill Trap: Pulling too many wires through EMT or PVC conduit violates the NEC 40% fill limit. This causes wire friction, overheating, and absolute code failures.
- Copper Price Volatility: Material costs fluctuate hourly. If you wait days to send a bid back using outdated wire pricing, you will either lose the bid or destroy your own profit margins.
The Cost of Code Mistakes
The Digital Electrical Estimator You Will Actually Use
No complicated engineering programs. Just a clean, mobile-first suite designed to calculate conductor sizes, conduit fill percentages, Ohm's law metrics, labor times, and custom material markup on the fly.
Smart Voltage Drop Math
Whether it is a single-phase residential subpanel or a three-phase commercial motor circuit, Electrical Man determines the smallest gauge wire required to maintain code compliance and minimize heat dissipation.
Conduit Fill Compliance
Calculates NEC conduit fill rates automatically. Mix wire gauges and insulation types (e.g. THHN, XHHW) to find exactly which EMT, PVC, or Rigid conduit size is required.
Instant Bid Sheets
Connect your crew labor rates and overhead margins. Electrical Man combines wires, boxes, breakers, switches, and your profit margins to build an instant proposal, ready to send from the job site.
How Electrical Man Eliminates Code Failures and Slaughters the Competition
Calculating voltage drop requires circular mil values, resistivity constants, and ampacity tables. Doing this manually on a scratchpad or looking up charts leads to calculation errors and slows down your workflow.
Electrical Man performs this math instantly. Plug in the run distance and amperage draw, select the copper or aluminum terminal rating, and let our engine fetch the code-approved wire sizes. Run bids in front of the customer, capture their signature on your phone, and lock down the contract before you leave.
Brandable PDF Quotes
Export professional proposals with your logo, itemized material lists, labor hours, and signature lines directly on site.
Offline-First Ready
Works in basements or remote locations with zero cellular coverage. All estimates save locally and sync when you reconnect.
The 4-Step Flow to Bid Electrical Jobs and Win
Here is how simple it is to turn your mobile phone into an estimation powerhouse.
01
Input Dimensions
Enter layout lengths and counts. Group wire pulls, service panels, and devices on a single estimate.
02
Select Price Sheet
Select from your stored material lists. Your copper foot rate, breaker pricing, and box rates load instantly.
03
Set Margin & Labor
Verify crew hours and toggle markups. See the exact gross profit dollars and percentages instantly.
04
Export Quote
Export a premium brandable PDF quote. Send it to the client via SMS or email right from the site.
Why Scratchpad Math is Costing You Deals
Compare how FieldSquire stacks up against traditional methods.
| FEATURE / METRIC | ELECTRICAL MAN (FIELDSQUIRE) | EXCEL / MANUAL CHARTS | TRADITIONAL SCRATCH PAD |
|---|---|---|---|
| Average Sizing & Bid Speed | Under 60 Seconds | 20-30 Minutes | 1-2 Hours (At home) |
| NEC Code Sizing Reference | Aligned & Automatic | Manual table lookups | Guesswork (Risk of violation) |
| Pricing Integration | Upload CSV instantly | Manual line entries | Old pricing lists |
| Proposal PDF Export | Yes, branded on mobile | Desktop PDF only | Handwritten scrap paper |
| Bid Win Rate Increase | +45% (Faster response) | Baseline (No change) | -15% (Loss due to delays) |
What Electrical Pros are Saying
Real results from real service teams, residential wiremen, and commercial crews.
"I used to write bids in my kitchen at 9 PM. Now, I calculate voltage drop and size the subpanel feed in front of the customer, and text them a PDF proposal. They sign on my iPad before I start my truck. My sales doubled in two months."
Jeff Sparks
Sparks Electric LLC • Benton, AR
"The conduit fill estimator is worth every penny. Pulling service wire through PVC under ground runs has zero margin for error. Electrical Man hits the fill percentage exactly, preventing friction burns and failed electrical inspection fees."
Brian Hall
Apex Electrical Systems • Dallas, TX
Choose Your Estimator Access
Get full access to the Web panel, pricing uploads, and the Android mobile APK package.
Pro Monthly Tier
14-Day TrialPerfect for single crews or owner-operators desiring billing flexibility.
- Unlimited Electrical Estimations
- Voltage Drop & wire size estimators
- Custom price lists CSV uploads
- Print-ready PDF proposal builder
- Offline Android App (APK) Access
Pro Annual Tier
14-Day TrialFor contractors who want maximum cost savings and priority updates.
- Unlimited Electrical Estimations
- Voltage Drop & wire size estimators
- Custom price lists CSV uploads
- Print-ready PDF proposal builder
- Offline Android App (APK) Access
- Priority Developer Support
Frequently Asked Questions
Ready to Quote Faster and Win More Electrical Jobs?
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