Trades Hub Calculators
Free, instant calculators for HVAC technicians, roofers, concrete contractors, and home service business owners.
HVAC BTU & Tonnage
Find the right AC or heat pump size based on square footage, insulation, and climate zone.
Open calculator →HVAC Energy Savings
See annual savings and payback period when upgrading to a higher-efficiency HVAC system.
Open calculator →Roofing Cost Estimator
Estimate a new roof by square footage, pitch, material type, and regional labor market.
Open calculator →Concrete Calculator
Calculate cubic yards and bag counts for slabs, footings, columns, and walls.
Open calculator →True Employee Cost
Calculate the fully-burdened labor rate including taxes, insurance, vehicle, and benefits.
Open calculator →Why Trade Professionals Use TradeCalc Hub
Running a home service business means making dozens of calculations every day — job costing, material estimates, equipment sizing, pricing, and more. TradeCalc Hub puts all of those calculations in one place, free and instantly accessible from any device.
Whether you're an HVAC technician calculating the right tonnage for a new installation, a roofing contractor preparing a bid, or a business owner trying to understand your true labor costs, our calculators are built to match real-world trade workflows.
- No account required — every calculator works instantly
- Built for field use — mobile-friendly and fast-loading
- Industry-standard formulas — the same math used by top contractors
- Always free — supported by advertising, not paywalls
Are these calculators accurate enough for real bids?
Our calculators provide reliable estimates based on industry-standard formulas. For final project bids, use these numbers as a starting point and adjust based on your local labor rates, site conditions, and current material costs.
Is there a cost to use TradeCalc Hub?
All calculators are completely free. We support the site through advertising. No account, email, or credit card is ever required.
Can I use these on my phone on a job site?
Yes — every calculator is designed to work on mobile. Bookmark the page you use most and pull it up when you're in the field.