Built for the trades, by people who know the numbers

ContractorToolkitHub is a free suite of professional estimating and calculation tools designed specifically for contractors, tradespeople, and construction professionals. Every tool is built around how the industry actually works — not how accountants think it works.

Why we built this

Contractors lose money in two ways: undercharging because they don't know their true costs, and overcharging because they can't produce a professional quote fast enough to win the job. Most of the tools that exist are either too complex (full estimating software), too generic (spreadsheet templates), or cost money every month for features you don't need.

ContractorToolkitHub fills the gap. Every tool on this site is:

• Free — no account, no subscription, no upsell.
• Fast — open a tool, enter numbers, get an answer in under a minute.
• Offline-capable — works in the browser without an internet connection after the first load.
• Print-ready — quotes and invoices look professional right out of the browser.

The tools

The current suite covers the most common estimating and field math problems contractors face on a daily basis:

Who this is for

These tools are designed for:

• General contractors — quick material and labor estimates for bidding.
• Specialty trades — electricians, plumbers, HVAC technicians, carpenters, painters, landscapers, and concrete contractors.
• Owner-operators — solo contractors who need to produce professional quotes without a full estimating team.
• Project managers — tracking budgeted vs. actual costs across multiple job categories.
• Students — learning construction estimating and business pricing fundamentals.

Our approach

Every calculator on this site is built on the same pricing framework professional contractors use: raw cost → burden/overhead → markup → client price. The numbers default to typical industry rates, but every input is editable so you can match your actual costs and market.

We do not store anything you type. All calculations happen in your browser. No account is required and nothing is sent to our servers.

Feedback and requests

Have a tool you'd like to see added? Found a calculation that doesn't match how your trade prices work? We want to hear from you. Send us a message — contractor feedback directly shapes what gets built next.