🛠️ Free Field Tools & Utilities

Free Contractor Tools & Calculators

Simple, practical online tools to help plumbers, electricians, HVAC techs, and handymen price jobs, calculate markup, and run profitable trades.

⭐ Featured Interactive Tool 100% Free · No Sign-Up Required

Contractor Job Estimate & Invoice Calculator

Calculate labor hours and hourly rates, factor in materials costs with custom percentage markup, apply local sales tax, and generate an exact job estimate total in seconds.

Open Free Estimate Calculator →
Interactive Calculator

Job Estimate & Markup Calculator

Calculate labor, parts and supplier markup, and taxes to price jobs accurately before sending quotes to clients.

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Mobile Field App

Invoice for Trades (Android)

Create and send professional PDF invoices and estimates on your phone in under 2 minutes. Works 100% offline on the job site.

Download on Google Play →
Field Knowledge Hub

Contractor Invoicing Guides

Learn how to write estimates, prevent client payment delays, and master what line items every trade invoice needs.

Explore Guides Hub →