# Model Scaler

> Instant scale conversion tool for U.S. Customary and Metric measurements. (iPhone/iPad app by Woodland Scenics.)

- Source: https://appshunter.io/ios/app/model-scaler/id528641484 (this page in markdown: same URL + `.md`)
- Developer: [Woodland Scenics](https://appshunter.io/developer/528641487)
- Category: Productivity, Utilities
- Price: Free
- Rating: 2.90/5 from 12 App Store ratings · 35 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.0 · 11 MB
- Languages: American English
- Released: 2012-05-29
- Data updated: 2026-06-11
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/model-scaler/id528641484/reviews.md

## What is Model Scaler?

Instant scale conversion tool for any modeling scale.
Fast, easy and efficient scale model conversion. Quickly convert U.S. Customary and Metric measurements into any scale. Perfect for all scale modelers, railroad modelers and tabletop gamers.

## Key features

- Instant scale conversion
- U.S. Customary to Metric
- Metric to U.S. Customary
- Supports any modeling scale
- Fast and efficient

## Recent user reviews (10 of 35)

All indexed reviews: https://appshunter.io/ios/app/model-scaler/id528641484/reviews.md

### 5/5 — Simple and effective

*2023-11-03, version 6.0.5*

I’m not sure what others expect of this app? But it does exactly what it’s supposed to do. It’s so easy to enter the scale you are working in, enter a real world measurement and it gives you the scale equivalent. That’s all it claims to do, and it does it very well. I love it! And use it often when modeling my railroad. Saves me a ton of math!

### 2/5 — Not dollhouse scale friendly

*2023-10-30*

While all the model railway, cars and war games scales seem to be listed if you want to convert for dollhouse scales you have to enter them as a custom scale.  Surely it wouldn’t have been difficult to add 1:6, 1:12, 1:144 and maybe 1:16.  There was no indication in the description before I downloaded it that it would be tedious to swap back and forth between the various dollhouse scales I work in.

### 1/5 — Can’t change scales

*2023-06-20, version 6.0.5*

Every time I try to change to any scale other than the default, it crashese

### 5/5 — Works

*2020-10-28, version 6.0.5*

It does exactly what it says should do, calculate in hobbie scale and it’s free with a nice interface.

it have popular preset scales ready plus it lets you enter your own custom scale if needed.

### 1/5 — Great Idea

*2019-05-05, version 6.0.5*

I was really looking forward to using this App. However, I could not change the scale, it defaulted to G scale and no other scale could be selected.

### 5/5 — Great Tool for Serious Miniaturists

*2019-02-17, version 6.0.5*

I make scale dollhouse miniatures in 3 different scales and being a bit “mathematically challenged”, sometimes got confused when trying to calculate the dimensions an object had to be to be exactly ‘in scale’. The smaller the item, the harder this became. Your app has been a lifesaver for me ever since my first forays into 144th scale (aka micro-mini, 1:144, 1”=12’). The best part is that one can customize the fields to convert between metric and imperial measurements, use custom scales as well as standardized hobby scales and even determine the scale of something with a few basic measurements using a reverse engineering approach. It could do with a bit of work on the visual aspects of the page,  ;-)  but the main thing is that IT WORKS!! and ITS FREE!!. 
‘nitfiend’ in 🇨🇦

### 3/5 — Take it a bit farther

*2018-08-24, version 6.0.5*

Be nice if it allowed you to plug in an advertised scale distance and generated an actual real-world size.

### 2/5 — Newbie

*2018-08-03, version 6.0.5*

Can’t get it to work for custom scales eg 1:35

### 3/5 — Mr

*2018-04-13, version 6.0.5*

I preferred the previous layout. The new one seem really clutter and it is a bit slow to be honest.

### 5/5 — Very useful App!

*2018-04-13, version 6.0.5*

Just calculates between real and scale sizes in a wide variety of different types of measurement.
Hardly a complicated app but extremely useful to any modeller and none of the usual in your face ads!

## Frequently asked questions about Model Scaler

### What does Model Scaler do?

Model Scaler is an instant conversion tool that allows you to convert measurements between U.S. Customary and Metric units for any modeling scale. It is designed to be fast, easy, and efficient for all scale modelers.

### Who is Model Scaler for?

This app is perfect for all scale modelers, including railroad modelers and tabletop gamers. Anyone who needs to work with different measurement scales in their hobby will find it useful.

### Is Model Scaler free to use?

Yes, based on the provided information, Model Scaler is a free application. There are no mentioned costs associated with its use.

### What types of conversions does it support?

The app supports quick conversions between U.S. Customary and Metric measurements. You can convert to and from any specific modeling scale you require.

## Version history (last 5 releases)

### 6.0.5 — 2018-04-05

This app has been updated by Apple to display the Apple Watch app icon.

*Bug Fixes*

### 6.0.3 — 2018-04-04

The Model Scaler app has an all new interface interface!

### 5.0.0 — 2016-10-05

Updated for New Devices.

### 4.2.2 — 2016-01-19

* Fixed Drop Down Menus for IOS 9

### 4.2 — 2013-09-08

* Completely rebuilt for speed
* Refreshed and simple ui
* Add multiple custom scales
* Remembers your last scale and measurements

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| [Ruler - Scale Ruler](https://appshunter.io/ios/app/ruler-scale-ruler/id919130707) | 3.7 (3) | Free | Productivity |

## More apps by Woodland Scenics

- [Model Inventory](https://appshunter.io/ios/app/model-inventory/id669218378)
- [Water Volume Estimator](https://appshunter.io/ios/app/water-volume-estimator/id1372251188)

All apps by Woodland Scenics: https://appshunter.io/developer/528641487

## Related topics

[model scaler](https://appshunter.io/ios/topics/model-scaler) · [model scale calculator](https://appshunter.io/ios/topics/model-scale-calculator) · [scalerize](https://appshunter.io/ios/topics/scalerize) · [model railroad](https://appshunter.io/ios/topics/model-railroad) · [scale calculator](https://appshunter.io/ios/topics/scale-calculator)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-11.*