ArchitectScaler

Scale ruler & drafting tools

Free · Designed for iPad. Not verified for macOS.

Version 2.0: a new Home screen with seven new tools - slope and pitch, area and volume, sheet fit, scale bars, model making and more. Plus named rows and saved sessions. ArchitectScaler turns your iPhone and iPad into a scale ruler, a drafting calculator, and the small toolbox of conversions architects, designers, and students actually reach for. No triangular ruler, no clunky calculator, no "calculate" button - you type, and the answer is already there. Version 2.0 opens on a Home screen of tools. Tap one and you are working. THE CONVERTER Set a scale once, then keep a live ledger of dimensions. Type a real-world length to get the drawing length, or type a drawing measurement to get the real thing - both directions, instantly. Name any row ("North wall", "Door", "Site") so a list of numbers reads as a list of things. Your rows, scale, and units are saved between launches. FEET AND INCHES, PROPERLY Type 12'-6 1/2" the way you would write it. Scales like 1/4" = 1'-0" are first-class, and a keyboard row puts the ' " - and / marks one tap away. Change a unit and the app converts the value rather than re-reading the same digits. THE TOOLS Find scale from a drawing - measure any labeled dimension on a print and get the ratio back, with the nearest named scale offered as a one-tap match. Slope and pitch - convert between 1:20, percent, degrees, and roof pitch, and get the fall over a run. Area and volume - scale squared and cubed, from square millimeters through hectares and square inches through acres, plus cubic meters, feet, and yards. Rescale and print - the copier percentage that takes a drawing from one scale to another, and what a line measures after the change. Sheet fit - whether a plan fits a sheet inside its margins, and the largest named scale that would. ISO A0 to A4, ANSI A to E, and Arch A to E1. Feet and inches - add and subtract lengths in drafting notation without converting to decimal first. Scale bar - generate a printable graphic scale and share it straight into a drawing. Model making - turn a real wall thickness into the nearest card, foam board, or acrylic sheet, and see how far off that substitution puts you. BUILT FOR THE WAY YOU WORK Metric and imperial: mm, cm, m, km, in, ft. Metric, architect, and engineering scale presets, or type any ratio you like - 1:48 and 1:37.5 are both fine. iPhone and iPad. Light and dark, following your system appearance. No account, no ads, no tracking, no data collection. Every calculation stays on your device. Built by an architect, for architects, interior designers, engineers, students, model makers, and anyone who works from a scaled drawing.

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Version 2.0 is a complete overhaul. A NEW HOME SCREEN The app now opens on a launcher of large tiles, so every tool is one tap away. The converter tile shows your current scale, units, and row count at a glance. SEVEN NEW TOOLS - Slope and pitch: convert between 1:20, percent, degrees, and roof pitch, and get the fall over a run. - Area and volume: work at scale squared and cubed, with hectares and acres. - Rescale and print: the copier percentage, and what a line measures at another scale or on another sheet. - Sheet fit: whether a plan fits a sheet inside its margins, and the largest named scale that would. - Feet and inches: add and subtract lengths in drafting notation. - Scale bar: make a printable graphic scale and share it straight into a drawing. - Model making: turn a real wall thickness into card stock, and find the scale that fits a model in the space you have. FIND SCALE FROM A DRAWING Measure any labeled dimension on a print and the app works out the ratio for you, with the nearest named scale - like 1/8" = 1'-0" - offered as a one-tap match. NAMED ROWS Every ledger row now takes an optional label ("North wall", "Door", "Site"), so a list of dimensions at one scale reads as a list of things rather than a column of bare numbers. The name is saved with the row and never affects the math. FEET AND INCHES, FIRST-CLASS Type 12'-6 1/2" directly, with a keyboard row for the ' " - and / marks. ALSO IN THIS RELEASE - Your rows, scale, and units are saved between launches. - Changing a unit now converts your value instead of re-reading the same digits in a different unit. - The app follows your system Light/Dark appearance by default. A theme you picked by hand is kept.

The developer, Pratheek Balakrishna, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer indicated that this app supports the following accessibility features. Learn More

    • Supported Features

      • Dark Interface

      • Differentiate Without Color Alone

    Seller
    • Pratheek Balakrishna
    Size
    • 2.8 MB
    Category
    • Utilities
    Compatibility
    Requires iOS 17.6 or later.
    • iPhone
      Requires iOS 17.6 or later.
    • iPad
      Requires iPadOS 17.6 or later.
    • Mac
      Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.3 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 Pratheek Balakrishna