Free tools

    Contractor Calculators.

    Free, no-signup calculators for the numbers roofing and trade contractors run every day.

    What contractor calculators does URBLD offer for free?

    URBLD publishes seven free calculators for roofing and trade contractors: labor burden, profit margin, crew cost per day, break-even revenue, total job cost, overtime cost, and material markup. Each one shows the formula, walks through a worked example, and lets you copy a shareable link with your inputs.

    Labor

    Roofing Labor Burden Calculator

    True hourly cost of a crew member after taxes, insurance, and benefits.

    Crew Cost per Day Calculator

    All-in daily cost of a crew — wages, burden, vehicles, fuel, and equipment.

    Overtime Cost Calculator

    True overtime cost per hour including burden — and what it does to job margin.

    Finance

    Roofing Profit Margin Calculator

    Gross and net margin on a roofing job from revenue, materials, labor, and overhead.

    Contractor Break-Even Calculator

    Monthly revenue you need to cover fixed and variable costs.

    Estimating

    Job Cost Calculator

    Total cost of a single job — materials, labor, subs, permits, and overhead allocation.

    Material Markup Calculator

    Sell price and margin from material cost, markup, and target gross margin.

    HVAC

    HVAC Duct Sizing Calculator

    Size supply and return ducts from CFM, friction rate, and velocity for residential and light-commercial HVAC.