Free Roofing Calculators for Fast Accurate Estimates
Estimate roofing materials, labor, and costs with simple online tools built for contractors and homeowners.
Roofing squares calculator
Calculate squares and shingle bundles from roof dimensions and pitch.
Use calculator →Roofing Square Cost By State
Average roofing cost per square by state. Compare labor and material prices across all 50 states for asphalt shingles, metal roofing, and more.
Use calculator →Labor cost estimator
Estimate roofing labor cost per square based on job type and region.
Use calculator →Roof Pitch & Angle Calculator
Convert pitch to degrees, find slope multiplier, and calculate rafter angles.
Use calculator →Underlayment calculator
How many rolls of felt or synthetic underlayment you need.
Use calculator →Metal roof calculator
Calculate panels, screws, and trim for metal roofing projects.
Use calculator →Ridge cap calculator
How many ridge cap shingle bundles you need for your ridge length.
Use calculator →Drip edge calculator
Calculate linear footage and pieces of drip edge needed.
Use calculator →Roofing nails calculator
How many roofing nails per square and how many boxes to buy.
Use calculator →Waste factor calculator
Calculate roofing waste percentage for gable, hip, and complex roofs.
Use calculator →Roof replacement cost estimator
Estimate full roof replacement cost by material type and roof size.
Use calculator →Ice & water shield calculator
How many rolls of ice and water shield for eaves and valleys.
Use calculator →Rafter length calculator
Calculate common rafter length from rise, run, and pitch.
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