Switching between scales has become easy with Architect's Scale, a fast and powerful tool for calculating dimensions of plans and models. The app combines a calculator with a unit and scale converter.

Supported units: mm, cm, m, in, ft, yd.
Scales: 1:1, 1:2, 1:5, 1:10, 1:20, 1:25, 1:33, 1:50, 1:100, 1:200, 1:500, 1:1000, 1:2000, 1:5000 or pick your own scale.

When the scale is set to 1:1 the app allows conversions between metric and imperial system.