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.

Calculate the area of rooms, floors, and spaces in square meters (m²). Works for rectangular, triangular, and L-shaped rooms.

Calculate room dimensions, floor area, wall area, and volume for material estimation and furniture planning.