iPhone Screenshots


This free to use App contains a Scale Model engine that converts your Metric and Imperial sizes into either a scaled up or down size, the range is 500:1 to 1:1 to 1:500.

Once you have chosen either Metric or Imperial, you can choose or type the ratio in, followed by the measurement you wish to convert. You can then adjust the slider or type in a new ratio to compare scales.

This simple to use App is provided free with Ads to recover some of the development costs.

For more information visit our website, https://www.interneers.com.

Hope you find this App useful, contact us at the website above with your suggestions and feedback.

What’s New

Version 2.0.4

Library updates and bug fixes.

Ratings and Reviews

3.0 out of 5
1 Rating

1 Rating

Excellent song by Bruce ,

Eliminate don’t want to end on the bottom of the screen need to eliminate

Eliminate ads, Don’t wanted the Ads on the bottom of the screen it’s annoying to do my work or planning things of it. I think it didn’t have it in my older iPhone and iPad too.

Rrowan327 ,

Nice app

Model train scales go down to 1/220 for Z scale. Any chance to update the app for smaller scales?
Thank you

Zach1986ga ,

great app

even better it's free!

App Privacy

The developer, Andrew Jackson, 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 Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Location
  • Identifiers
  • Usage Data
  • Diagnostics

Data Linked to You

The following data may be collected and linked to your identity:

  • Location
  • Identifiers
  • Usage Data
  • Diagnostics

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

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


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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