12 Calculators

Electrician Calculators

Panel upgrades, EV chargers, wire sizing, conduit fill, permits — every calculator an electrician needs to quote jobs fast and never leave money on the table.

Pricing Every Electrical Job With Confidence

Electrical pricing has two failure modes: bid too low and work for below your cost, bid too high and lose jobs to contractors making the same mistake in the other direction. The calculators on this page give you defensible numbers for every common residential and light commercial electrical job — from a single GFCI outlet to a full service upgrade.

Every calculator accounts for permit costs, your labor rate, equipment markup, and overhead contribution. Use them to build line-item quotes that hold up when a customer asks why your number is what it is.

Start with the True Hourly Rate Calculator to make sure your base rate covers overhead and hits your income target. Then price each job from that foundation.

Installation & Upgrade

Electrician · #001
Panel Upgrade Cost
100A to 200A or 400A — price the full scope including meter base, riser, permit, and utility coordination.
Electrician · #024
EV Charger Installation Cost
Level 2 EVSE with wire run, conduit, panel capacity, and permit — NEC 625.41 125% rule built in.
Electrician · #023
Ceiling Fan Installation Cost
Fan-rated box check, vaulted ceiling multiplier, height factor, and additional fan efficiency pricing.
Electrician · #021
GFCI Outlet Installation Cost
By wiring condition — aluminum wiring, 2-wire, new circuit — with location multipliers and CO/ALR alerts.
Electrician · #025
Smoke & CO Detector Installation
Hardwired interconnected per NFPA 72 — by unit count, wiring method, stories, and report type.
Electrician · #012
Outdoor Lighting Installation
Fixture type, wire run, switch location, and conduit routing — quote landscape, security, and area lighting.
Electrician · #015
Generator Installation Cost
Standby generator with transfer switch, pad, gas line coordination, and permit — full installed scope.
Electrician · #011
Circuit Breaker Replacement
Standard, AFCI, GFCI, or tandem — by panel type and breaker count with minimum service call floor.

Code, Sizing & Permits

Electrician · #022
Electrical Permit Cost
Three fee structures — flat, valuation-based, unit-based — plus inspection time and overhead markup.
Electrician · #008
Electrical Load Calculation
NEC Article 220 service load — general lighting, appliances, HVAC, EV circuits, and demand factors.
Electrician · #010
Conduit Fill Calculator
NEC Table 1 fill percentages — EMT, RMC, PVC — multiple wire sizes and conductor counts.
Electrician · Reference
Wire Gauge & Amperage
AWG to ampacity reference — copper and aluminum, NEC 310.15 derating for conduit fill and temperature.

Price Every Electrical Job Right the First Time

The Electrician's Business Starter Kit includes a flat-rate price book for 40 common residential and commercial electrical jobs, EV charger install checklist, and service agreement template. Guide from $19 — Complete Kit with all 19 templates, $49.

Get the Electrician's Kit →