Tools & Calculators

Professional-grade calculators to help you estimate materials and costs for your projects

Paint Calculator
Calculate paint needed for any room based on dimensions and number of coats
Flooring Calculator
Determine flooring materials needed for any room shape with waste factor
Drywall Calculator
Calculate drywall sheets, joint compound, and fasteners needed
Insulation Calculator
Determine R-value requirements and insulation materials by climate zone
Deck Calculator
Calculate lumber, joists, posts, and hardware for deck building
Concrete Calculator
Calculate cubic yards of concrete for slabs, footings, and columns
Fence Calculator
Determine posts, rails, pickets, and materials for any fence project
Tile Calculator
Calculate tiles, grout, and thinset for floors, walls, and backsplashes
Roofing Calculator
Calculate shingles, underlayment, and materials based on roof area and pitch
Mulch & Soil Calculator
Calculate cubic yards of mulch, soil, gravel, or stone needed
Stair Calculator
Calculate rise, run, stringers, and materials for building stairs
Crown Molding Calculator
Calculate linear feet and cutting angles for crown molding installation
Wallpaper Calculator
Determine rolls needed based on room size and pattern repeat
Blinds Calculator
Add multiple windows by dimension to calculate total blinds needed
Lumber Calculator
Calculate studs, plates, and lumber for framing projects
Gravel & Stone Calculator
Calculate tons or cubic yards for driveways, pathways, and drainage
Gutter Calculator
Calculate gutter materials, downspouts, and hardware needed
Brick & Block Calculator
Calculate masonry units and mortar for walls and structures
Trim & Baseboard Calculator
Calculate interior trim, baseboards, and molding materials
Cabinet Hardware Calculator
Determine optimal placement and spacing for cabinet hardware
Energy Savings Calculator
Calculate ROI and payback period for energy efficiency upgrades
Solar Calculator
Calculate solar panels needed to power your home and estimate savings
Compound Miter Angle Calculator
Calculate miter and bevel angles for trim at non-90° corners
Deck Beam Span & Footing Calculator
Determine beam sizes and footing dimensions for deck structure
Sheet Goods Nesting Optimizer
Optimize cutting layouts for plywood and sheet materials
Wall Assembly R-Value Calculator
Calculate effective thermal resistance with thermal bridging
Rain Gutter & Downspout Sizing
Size gutters and downspouts based on roof area and rainfall
Low-Voltage Lighting Calculator
Calculate voltage drop for LED strips and landscape lighting
Refrigerant Line Set Sizing
Size copper lines for HVAC systems based on tonnage and run
Concrete Strength Mix Calculator
Calculate cement, sand, and aggregate ratios for target PSI
Tankless Water Heater Sizing
Estimate GPM capacity needed for household hot water demand
Wood Movement Predictor
Estimate seasonal expansion and contraction of lumber
Cabinet Door Overlay Calculator
Calculate exact door dimensions for frameless cabinets
Golden Ratio Furniture Tool
Apply golden ratio to furniture dimensions for aesthetic balance
Seismic/Wind Foundation Estimator
Estimate anchoring force for sheds and outbuildings
Window Overhang Shading Calculator
Calculate shade depth for passive cooling design
Fireplace Mantle Clearance Validator
Verify code-compliant clearances for fireplace mantles
Wallpaper Pattern Repeat Calculator
Calculate rolls needed factoring in pattern repeats
Garage Door Spring Sizing
Calculate torsion spring specifications for garage doors
Masonry Material Estimator
Calculate bricks, blocks, and mortar for masonry projects
Drywall Trim & Bead Calculator
Estimate lineal footage for drywall edge trims and beads
Pool Volume & Chemical Calculator
Calculate pool volume and chemical dosages for maintenance
Sump Pump Sizing Calculator
Determine pump flow rate and basin size for basements
Fence Picket Spacing Calculator
Calculate perfect equal spacing between fence pickets
Ductwork Sizing Calculator
Size ductwork based on CFM requirements and velocity
Septic Tank Capacity Tool
Determine minimum septic tank size for your home
Tool Rental vs Purchase ROI
Calculate break-even point for renting vs buying tools
Free DIY Calculators - Easy Material & Cost Estimators for Home Improvement | DIYProject.ai