All Calculators
A complete suite of professional roofing and construction calculators.
Area Calculator
7 ToolsFlat Roof Area Calculator
Quickly calculate your flat roof area, Enter the roof length and width. Get instant roof area in square feet/meters for accurate material estimates and project planning.
Gable Roof Area Calculator
Easily estimate the total surface area of a gable roof using either the building footprint and roof pitch or the exact dimensions of the sloped sides.
Hip to Gable Roof Volume Calculator
Calculate attic space gained with a Hip to Gable Roof Volume Calculator using formulas and examples.
Hipped Roof Calculator | Area, Height & Rafter Formula Guide
Calculate roof height, rafter length, and total surface area with our Hipped Roof Calculator. Includes formulas, examples, and step-by-step calculations.
Roof Height Calculator
Calculate roof height, roof angle, and rafter length instantly with our Roof Height Calculator. Enter building width and roof pitch for accurate roofing measurements.
Roof Square Footage Calculator
Quickly calculate your roof area with our Roof Square Footage Calculator. Enter your footprint area and roof pitch to get accurate results for any roofing project.
Sloped Roof Area Calculator
Quickly estimate the surface area of your pitched roof based on dimensions and roof pitch. Perfect for roofing material and cost estimates.
Miscellaneous
21 ToolsFlat Roof Material Calculator
Use our Flat Roof Material Calculator to estimate roofing material quantity and cost instantly. Enter your roof size, waste percentage, and material cost to get accurate results f...
Gutter Slope Calculator
Use our free Gutter Slope Calculator to find the perfect slope for your gutters. Enter gutter length and slope or total drop to ensure proper drainage.
Lean-to Roof Pitch Calculator
Easily calculate your lean-to roof pitch with our calculator. Find roof pitch in degrees, ratio, slope percentage, and surface area with formulas, examples, and step-by-step guidan...
Metal Roof Calculator
Use this Metal Roof Calculator to estimate roof area, sheet quantity, and total cost. Learn step-by-step formulas with examples to calculate your metal roofing needs accurately.
Plywood Calculator for Roof
Easily calculate how many plywood sheets you need for your roof. Our free Plywood Calculator for Roof includes waste calculation, formulas, and examples to help you plan efficientl...
Rafter Angle Calculator
Use our Rafter Angle Calculator to easily find the rafter length and roof pitch angle based on your roof’s span and rise. Perfect for carpenters, builders, and DIY roofing projects...
Roof Decking Calculator
Calculate how many roof decking sheets you need with our free Roof Decking Calculator. Estimate roof area, adjust for roof pitch, add waste, and find the total plywood or OSB panel...
Roof Drain Calculator
Calculate roof drainage requirements using roof area, rainfall intensity, and drain capacity. Easy roof drain calculator for estimating drain flow and quantity.
Roof Framing Calculator: Formulas, Methods, and a Worked Example
Enter building length, width, pitch & overhang to calculate rafter length, ridge board, hip rafters, rafter count, board feet & roof area instantly.
Roof Heat Cable Calculator
Calculate the required roof heat cable length for ice dam prevention. Estimate roof edge cable, downspout cable, and total heat cable using simple measurements.
Roof Pitch Chart - Download a free PDF
Download a free Roof Pitch Reference Chart PDF with pitch ratios, roof angles, multipliers, and common roofing applications.
Roof Pitch to Angle Converter
Convert roof pitch (rise and run) into angle in degrees and slope percentage with our Roof Pitch to Angle Converter. Includes formulas, step-by-step calculation, and examples.
Roof Shingle Calculator
Easily calculate how many shingles you need for your roof with our free Roof Shingle Calculator. Enter roof area, shingle coverage, and waste percentage to get an accurate total
Roof Slope Calculator
Use our free Roof Slope Calculator to quickly convert rise and run into roof slope ratios, degrees, and percentages. Perfect for builders, roofers, and homeowners.
Roof Tile Calculator
Easily estimate how many tiles your roof needs using our Roof Tile Calculator. Learn step-by-step how to calculate roof area, number of tiles, and total cost with examples and form...
Roof Truss Calculator
Calculate roof truss dimensions, rafter length, roof area, and number of trusses using roof span, pitch, spacing, overhang, and roof length. Easy roof truss calculator for construc...
Roof Truss Cost Calculator
Calculate roof truss costs instantly with our Roof Truss Cost Calculator. Estimate the number of trusses, roof area, total truss cost, and cost per square foot using building dimen...
Roof Underlayment Calculator
Calculate roof underlayment rolls needed using roof area, overlap, and waste percentage. Get accurate material estimates with formulas and step-by-step examples.
Roof Vent Calculator: Estimate Proper Attic Ventilation
Calculate attic ventilation requirements with this Roof Vent Calculator. Estimate intake vents, exhaust vents, and total roof vents needed for proper airflow.
Roof Water Collection Calculator
Learn how to calculate roof rainwater collection using area, rainfall, and runoff coefficient. Includes formulas, example, for accurate rainwater harvesting estimation.
Roofing Nail Calculator
Estimate how many roofing nails you need based on roof area, shingle type, and nail pattern. Calculate nail weight, boxes required, and total roofing nail cost instantly.
Cost Calculator
5 ToolsMetal Roof Painting Cost Calculator
Estimate your roof painting expenses quickly with our Metal Roof Painting Cost Calculator. Learn the formulas to calculate paint required, labor cost, and total painting cost per s...
Solar Roof Cost Calculator
Estimate your solar installation cost and potential energy savings easily. Calculate total system size, installation cost, and monthly energy production with this simple solar calc...
Tar and Gravel Roof Cost Calculator
Estimate your flat roof expenses with our Tar and Gravel Roof Cost Calculator. Learn the formulas, see examples, and calculate total roofing cost per square foot quickly and accura...
Tesla Solar Roof Cost Calculator
Estimate Tesla Solar Roof installation costs, tax credit savings, and net project cost using roof area, cost per square foot, and federal tax incentives.
Tile Roof Replacement Cost Calculator
Easily estimate your tile roof replacement cost with our calculator. Enter roof area, tile price, labor, and removal cost to get accurate project estimates. Perfect for homeowners...
Weight Calculator
2 ToolsRoof Load Calculator
Calculate total roof load using roof area, dead load, live load, and snow load. Easy roof load calculator for structural and roofing estimates.
Snow Load on Roof Calculator
Estimate the snow load on your roof easily with this Snow Load on Roof Calculator. Enter roof area, pitch, snow depth, and snow density to find out how much weight your roof carrie...