Free Calculators for Trades Professionals
Sizing, material, and pricing tools built for the trades TradesQuote supports. Pick a category to browse free calculators — instant results in your browser, no account required. HVAC is live now; more trades are on the way.
HVAC
43 calculatorsSizing, airflow, diagnostics, psychrometrics, ventilation, humidity control, efficiency, and cost — BTU load, tonnage, unit converter, heat pump & mini-split sizing, furnace BTU, CFM, duct size, Delta T, static pressure, superheat & subcooling, refrigerant charge, dew point, sensible & latent heat, fan laws, ventilation, humidity control, SEER, HSPF & AFUE savings, operating cost, replacement cost, and job pricing.
Browse calculatorsCarpentry
Coming soonBoard feet, lumber takeoffs, framing estimates, and material quantities for carpentry jobs.
Planned for a future release
Painting
Coming soonCoverage per gallon, wall and ceiling area, and paint quantity estimates for interior and exterior jobs.
Planned for a future release
Cleaning
Coming soonSquare-foot pricing, labor hours, and supply estimates for residential and commercial cleaning jobs.
Planned for a future release
Electrical
39 calculatorsConductor sizing, protection, load calculations, and pricing built on the NEC — wire size by ampacity and voltage drop, derating for ambient and bundling, breaker sizing, service and feeder conductors, equipment and electrode grounding, conduit and box fill, residential load calculation, service sizing, EV charger circuits, watts-to-amps and Ohm's law conversions, kVA and three-phase power, power-factor correction, running cost, panel upgrade and rewiring cost, labor rate, and job pricing.
Browse calculatorsPlumbing
Coming soonPipe sizing, flow rate, drainage slope, and fixture unit calculations for plumbing systems.
Planned for a future release
Calculators plan the job. TradesQuote prices it.
Once you have your numbers, the real work is the quote. Describe the job or upload photos, and TradesQuote's AI builds a detailed line-item estimate — quantities, unit prices, and totals — validated by a built-in quality control agent.