Free Contractor Tools
Professional calculators and estimators built for trade contractors. No signup, no fees — just accurate numbers.
12 tools across 5 trades
🌡️HVAC
⚡Electrical
Electrical Bid Calculator
Electrical contractor pricing guide and bid calculator for residential and commercial projects.
Wire Size Calculator
NewDetermine the correct wire gauge based on amperage, distance, voltage, and conductor material.
Electrical Panel Upgrade Cost Calculator
Calculate the cost of upgrading your electrical panel based on amperage, home size, and location.
🔧Plumbing
🌿Landscaping
🏗️General Contracting
Contractor Overhead Calculator
Calculate your business overhead percentage and determine proper markup rates.
Time & Materials Calculator
Time and materials pricing calculator for service calls and hourly billing.
Bid Template Generator
Generate professional bid templates for electrical, HVAC, plumbing, roofing, and landscaping projects.
Not sure where to start?
The Overhead Calculator is the single most important tool for any contractor. If you don't know your overhead, you're guessing on every quote.
Start with Overhead Calculator