Free Contractor Calculators

Professional calculators designed specifically for contractors. Get accurate cost estimates, pricing, and profit calculations.

Easy to use
No downloads
100%
Free

Available Calculators by Category

Choose from our professional calculators designed to help you make accurate estimates and profitable pricing decisions.

Project Cost Calculators

Deck Cost Calculator

Estimate decking, framing, railings, stairs, demolition, and labor for faster deck quotes

Landscaping Material Calculator

Estimate mulch, topsoil, stone, and sod quantities with optional install pricing

Fence Cost Calculator

Calculate fence installation costs and materials needed for your project

Flooring Cost Calculator

Estimate flooring costs and materials for various flooring types

Roofing Cost Calculator

Calculate roofing costs and materials for different roof types

Siding Cost Calculator

Estimate siding costs and materials for different siding types

Painting Cost Calculator

Estimate painting costs and materials for interior and exterior projects

Resurfacing Coverage Calculator

Estimate gallons or kits for bathtub refinishing, countertops, concrete coatings, pool decks, and more

Kitchen Remodel Cost Calculator

Estimate kitchen remodel costs by size, scope, cabinets, countertops, and flooring

Bathroom Remodel Cost Calculator

Estimate bathroom remodel costs by size, fixtures, and material grade

Concrete Cost Calculator

Estimate driveway, patio, and slab costs by dimensions, thickness, and finish

Window Replacement Cost Calculator

Estimate window replacement costs by count, size, and material

Home Addition Cost Calculator

Estimate home addition costs by square footage, stories, and finish level

HVAC Replacement Cost Calculator

Estimate HVAC replacement costs by home size, system type, and tonnage

Whole House Renovation Cost Calculator

Estimate whole house renovation costs by square footage and scope

Plumbing Job Cost Calculator

Estimate plumbing job costs by job type, quantity, and labor hours

Electrical Panel Cost Calculator

Estimate panel upgrade and wiring costs by amperage and home size

Pricing Calculators

Markup Calculator

Calculate the right markup percentage for your services and materials

Profit Margin Calculator

Determine your profit margins and ensure profitable pricing

Service Price Calculator

Set competitive pricing for your services based on costs and desired profit

Contractor Labor Rate Calculator

Calculate billable labor rates by trade, experience, and market region

Technical Calculators

Conduit Fill Calculator

Check raceway fill percentage, allowed capacity, and the next conduit size when a run is overfilled

Voltage Drop Calculator

Check voltage loss, load-side voltage, and whether a wire run stays within your target drop

HVAC CFM Calculator

Calculate the CFM (cubic feet per minute) needed for your HVAC system using ACH and room volume or room dimensions

HVAC BTU Calculator

Estimate HVAC cooling and heating capacity (BTU/hr) using room size, ceiling height, sun exposure, occupants, and kitchen load

Planning Calculators

Revenue Forecast Calculator

Forecast booked revenue, pending quote wins, and a more conservative top-line plan

Why Use Our Calculators?

Our calculators are designed with contractors in mind, featuring professional formulas and industry-standard calculations.

Professional Formulas

Industry-standard calculations and formulas used by professional contractors and estimators.

Instant Results

Get accurate calculations instantly. No downloads, no registration, just reliable results.

Mobile Friendly

Use calculators on-site or anywhere you need them. Works perfectly on phones, tablets, and computers.

Frequently Asked Questions

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Free Contractor Calculators | Professional Cost, Pricing & Technical Calculators | Dave