Easily convert distances between any scales for projects like architecture and model building. Input your measurements and desired scale to instantly calculate scaled distances.



249+ iOS apps curated and reviewed
Whether you're new to scale calculator or looking for an upgrade, our curated collection of 249+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | 3.7★ (3) | No | Yes | May 2026 | |
| 2 | Free | 4.6★ (25) | No | Yes | Jul 2026 | |
| 3 | Free | 2.9★ (12) | No | No | May 2026 | |
| 4 | Free | 3.7★ (3) | Yes | Yes | May 2026 | |
| 5 | Free | 4.5★ (4) | No | No | May 2026 | |
| 6 | Free | — | No | No | May 2026 | |
| 7 | Free | 2.0★ (2) | Yes | No | May 2026 | |
| 8 | Free | 4.6★ (4.6K) | Yes | Yes | Jul 2026 |



Easily convert distances between any scales for projects like architecture and model building. Input your measurements and desired scale to instantly calculate scaled distances.






This app allows users to measure printed architectural and engineering drawings directly on their device. It supports both known and unknown scales, offering fixed and variable scale options for precise measurements. Users can also select secondary units for quick conversions.

This tool instantly converts measurements between U.S. Customary and Metric units for any modeling scale. It's designed to be fast, easy, and efficient for all types of scale modelers.


This app displays various measurement scales for length, including meters and inches. It allows users to set magnification ratios and reduced scales for different applications. Users can calibrate the ruler and adjust PPI settings for accurate measurements.


This utility app facilitates weight conversions between Metric, Gross, and Net tons. It also allows for the calculation of price rates based on weight and other related calculations.




Easily convert measurements between metric and imperial units for scale models. Adjust ratios with a slider to see scaled-up or scaled-down comparisons.


This app offers a comprehensive suite of 10 powerful calculators and 10 financial worksheets, designed to handle everything from basic arithmetic to complex scientific and financial calculations. It includes features like unit conversion, currency exchange, graphing, and statistical analysis, making it a versatile tool for students and professionals.


This tool simplifies instrumentation setup and scaling needs. It performs accurate conversions between process variables, 4-20mA signals, and percentages with an intuitive interface for quick calculations.


Easily convert between any units and scales for scratch-building projects. Input an amount, unit, and scale to convert from, then select your desired units and scale for instant results. A second calculator helps determine the scale of an existing item.


This app offers both basic and scientific calculation modes with over 30 scientific operations. It allows for customization of the app's appearance and includes features for note-taking, drawing, and viewing calculation history. It supports high accuracy calculations and nested parentheses.




Create detailed floor plans and visualize your home designs in real-time 3D. This app offers tools for interior design, landscape planning, and renovation projects, allowing you to experiment with layouts, materials, and furniture before making real-world decisions. It supports architecture and construction-ready output for professional use.




This utility app helps truck drivers calculate axle weights for various truck configurations. It supports 3 or 4 axle sets and different scale types, highlighting overweight axles and allowing adjustments for fifth wheel and tandem slide positions.






This app offers a user-friendly calculator with large buttons and extensive customization options. It features a dual-line display to see input and results simultaneously, saves your calculation history, and provides full scientific functions. Personalize layouts, themes, and even button symbols to suit your needs.


This portable computing assistant offers both basic and scientific calculations with a clean interface. It features a history log, currency and unit conversion, and a unique photo-based problem solver. Enjoy an ad-free experience for all your calculation needs.


Estimate the weight and dimensions of objects using your phone's camera. This AI-powered tool provides instant gram and weight results, identifies plants, and translates text, acting as a versatile digital toolkit for everyday estimation needs.