Free roofing calculators & tools.
Work out your own numbers before anyone works them out for you. Cost, area, squares, bundles, financing. No email wall, no results-sent-to-your-inbox, no follow-up call - the answer appears on the screen and that is the end of it.
Reviewed by Michael ThompsonThese free tools give you a fast, honest starting point for your roofing project - no email, no spam. They are ballparks, not quotes. When you're ready for a real, written price, HomeMatchup matches you with a few vetted local pros who quote for free.
Cost calculators.
Roof Cost Calculator
Get a fast, fair ballpark for a new roof. Enter your roof area and material to see a 2026 price range.
Open toolMetal Roof Cost Calculator
Estimate a metal roof by area and metal type - standing seam, corrugated, or stone-coated steel.
Open toolTile Roof Calculator
Estimate a clay, concrete, or synthetic tile roof by your roof area.
Open toolSlate Roof Cost Calculator
Estimate a natural or synthetic slate roof by your roof area.
Open toolFlat Roof Calculator
Estimate a flat or low-slope roof by area and membrane - TPO, EPDM, PVC, or built-up.
Open toolCedar Shake Roof Cost Calculator
Estimate a wood shake or wood shingle roof by your roof area.
Open toolSolar Roof Cost Calculator
Estimate a solar shingle or solar-tile roof by your roof area.
Open toolRoof Cost by State Calculator
See a 2026 asphalt roof estimate adjusted for your state’s labor and material prices.
Open toolInstant Roof Estimate
Get a quick 2026 ballpark for your roof in seconds - then a real quote from a vetted pro.
Open toolMeasure & material.
Roof Area Calculator
Turn your home footprint and roof pitch into actual roof area - the number that sets your price.
Open toolRoofing Squares Calculator
Convert your roof area into roofing squares - the unit every roofer quotes in.
Open toolRoof Pitch Calculator
Find your roof pitch, its angle in degrees, and the area multiplier from rise and run.
Open toolRafter Length Calculator
Find the common rafter length from your run and roof pitch.
Open toolShingle Calculator
Find how many roofing squares and shingle bundles your roof needs, with waste included.
Open toolRoof Underlayment Calculator
Find how many rolls of underlayment your roof needs by area and type.
Open toolRoofing Nails Calculator
Find how many roofing nails - and how many pounds - your roof needs.
Open toolDrip Edge Calculator
Find how many pieces of drip edge your roof’s edges need.
Open toolRepair, protect & maintain.
Gutter Calculator
Estimate new gutters by the linear feet around your roof and the material you pick.
Open toolRoof Ventilation Calculator
Find how much attic ventilation your roof needs, using the 1/300 code rule.
Open toolRoof Snow Load Calculator
Estimate the weight of snow on your roof by area, ground snow load, and pitch.
Open toolRoof Age & Lifespan Calculator
See how much life your roof has left based on its install year and material.
Open toolSkylight Cost Calculator
Estimate skylights by how many you want and the type you choose.
Open toolRoof Cleaning Cost Calculator
Estimate professional roof cleaning by your roof area and method.
Open toolRoof Coating Cost Calculator
Estimate a protective roof coating for a flat or metal roof by area and type.
Open toolPlan & decide.
Roof Replacement ROI Calculator
See how much of a new roof you get back in resale value.
Open toolRoof Financing Calculator
Estimate the monthly payment on a roof loan by amount, rate, and term.
Open toolRoofing Material Selector
Not sure which roofing material fits your home, climate, and budget? We’ll help you find it.
Open toolRepair or Replace Quiz
Not sure whether to patch your roof or replace it? Here’s how to decide - and get a free pro opinion.
Open toolFor roofing pros.
Roofing Square Price Calculator
Turn a price per square into a total job price by number of squares.
Open toolMarkup & Margin Calculator
Turn your job cost and target margin into the price you should charge.
Open toolRoofing Material Takeoff Calculator
Turn a roof area into a quick shingle, underlayment, and nail material list.
Open toolRoofing Labor Hour Calculator
Estimate crew days for a re-roof by area, crew size, and pitch.
Open toolRoofing Commission Calculator
Figure a sales rep’s commission from the job price and commission rate.
Open toolCost Per Lead & Lead ROI Calculator
See the profit and ROI behind every roofing lead you buy.
Open toolAre you a roofer? Put any of these calculators on your own website for free - one line of code, styled in your brand color. Build your free embeddable widget →
Roofing tool questions
Want a real number instead of an estimate? Get matched with a vetted local pro →
The job will still be there next month.
It will just cost more, and you will be choosing in a hurry - which is how most people end up with the contractor they regret. Getting matched takes about a minute and costs nothing.
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