Free Tools
Free design tools and calculators
Useful calculators and converters for architects, interior designers, and design professionals. No signup required.
Scale Converter
Convert between architectural and engineering scales instantly. Supports 1:50, 1:100, 1:200, imperial scales, and more.
Use toolSquare Meter Calculator
Calculate the area of rooms, floors, and spaces in square meters (m²). Works for rectangular, triangular, and L-shaped rooms.
Use toolRoom Size Calculator
Calculate room dimensions, floor area, wall area, and volume for material estimation and furniture planning.
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