Your free architecture toolkit - calculators, code reference, estimators & solar analysis
Your complete architecture toolkit with 14 free tools plus quick links to other helpful FreeWWW resources.
Drawing scale calculator
Area, volume & perimeter
Rise, run & code check
Pitch, rafters & area
IBC quick lookup
Accessibility compliance
Max occupancy per code
Material quantities
Slabs, footings & columns
Allowable span lookup
Solar angles & shadows
Buildable area calculator
Architectural fee estimate
Construction cost per SF
Convert between architectural scales and calculate real-world dimensions from scaled drawings
Calculate area, volume, and perimeter for rectangular, L-shaped, and triangular rooms
Calculate rise, run, treads, and check IBC code compliance for residential and commercial stairs
Calculate pitch angle, rafter length, ridge height, and roof area from basic inputs
Searchable reference for common IBC requirements — egress, fire ratings, occupancy, accessibility
Input dimensions and check against ADA/ABA requirements for doors, ramps, restrooms, and clearances
Calculate maximum occupancy based on room area and use type per IBC Table 1004.5
Estimate material quantities for walls, floors, and backsplashes including mortar joints and waste
Calculate cubic yards of concrete for slabs, footings, columns, and stairs
Look up allowable spans for common lumber sizes based on species, grade, spacing, and loading
Calculate sun altitude, azimuth, and shadow lengths for any location and date — essential for daylighting design
Input lot dimensions and zoning setbacks to calculate buildable area, lot coverage, and FAR
Estimate architectural fees based on project type, size, and percentage or per-square-foot methods
Rough order-of-magnitude cost estimates based on building type, location, and square footage