# Units Converter for Engineers

> Free-form unit and currency converter for science and engineering professionals and students. (iPhone/iPad app by Lucy Enterprises.)

- Source: https://appshunter.io/ios/app/units-converter-for-engineers/id1018604081 (this page in markdown: same URL + `.md`)
- Developer: [Lucy Enterprises](https://appshunter.io/developer/1656612108)
- Category: Productivity, Education
- Price: Free with in-app purchases
- Rating: 3.00/5 from 2 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.6 · 5 MB
- Languages: English
- Released: 2015-07-29
- Data updated: 2026-06-01
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/units-converter-for-engineers/id1018604081/reviews.md

## What is Units Converter for Engineers?

Units Converter is a free-form units conversion tool designed for professionals and students of science and engineering. This is the only Units and Currency conversion app you will ever need. It is based on fundamental principle of dimensional analysis which allows you to enter your unit in any form (instead of picking from a predefined list). This method therefore supports any number of combinations. 

For example: It can effortlessly convert Energy in ton-TNT (tTNT) to kg-km^2/hr^2. If there is a units mismatch, it will identify missing units. Plus dozens of physical constants such as speed of sound, speed of light, gravitation constant, etc. are built-in and can be retrieved by entering their symbol.

Supports over 300 single units and over 165 currencies. Currency rates are automatically updated about once a month. Includes prices of gold (XAU), silver (XAG), platinum (XPT), etc.

Help notes provide a detailed glossary of all units available.

In free version, first text field is locked to a value of 1 and cannot be edited. 
Purchase 'Unlock all features' on the App Store to enable editing. 

Check it out.

## Key features

- Free-form unit conversion via dimensional analysis
- Supports over 300 single units
- Supports over 165 currencies with automatic updates
- Includes dozens of physical constants
- Identifies unit mismatches
- Glossary of available units

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Unlock all features | $0.99 | one-time |
| Remove ads | $1.99 | one-time |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/units-converter-for-engineers/id1018604081/reviews.md

### 1/5 — Trash

*2025-01-08*

Ads

### 5/5 — Excellent App

*2015-07-29*

Much awaited App without nonsense of menus and clutter. Excellent for professionals who do have to pick from hundreds of choices for units with the tiny little menus. Good job. A true professional App for conversion.

## Frequently asked questions about Units Converter for Engineers

### What is Units Converter for Engineers?

Units Converter for Engineers is a free-form unit and currency conversion tool designed for professionals and students in science and engineering. It utilizes dimensional analysis to support a wide range of unit combinations and includes physical constants.

### How does Units Converter for Engineers handle unit mismatches?

If there is a units mismatch during conversion, Units Converter for Engineers will identify the missing units. This helps users understand and correct potential errors in their calculations.

### How often are currency rates updated in Units Converter for Engineers?

Currency rates in Units Converter for Engineers are automatically updated approximately once a month. This ensures that users have access to relatively current exchange rates for their conversions.

### What are the limitations of the free version of Units Converter for Engineers?

In the free version of Units Converter for Engineers, the first text field is locked to a value of 1 and cannot be edited. To enable editing of all fields, users can purchase 'Unlock all features' on the App Store.

### Does Units Converter for Engineers support offline use?

The provided data does not specify whether Units Converter for Engineers supports offline use. However, currency rate updates would likely require an internet connection.

### What is the age rating for Units Converter for Engineers?

Units Converter for Engineers has an age rating of 4+. This indicates it is suitable for users aged 4 and above.

### How frequently is Units Converter for Engineers updated?

Units Converter for Engineers was last updated on September 29, 2025, with version 2.17. This suggests it receives regular updates to maintain functionality and compatibility.

### What devices are supported by Units Converter for Engineers?

Units Converter for Engineers is currently supported on iPhones. The provided data does not indicate support for iPads or other Apple devices.

## Version history (last 5 releases)

### 2.17 — 2025-09-29

Automated currency rates update.

### 2.16 — 2025-09-22

Auto-update of currency rates.

### 2.15 — 2024-12-08

Compatibility with latest iOS version.

### 2.14 — 2020-07-11

Fixed display issues

### 2.13 — 2020-06-04

Updated for latest iOS version. Added AWG (American Wire Gauge, 1 thru 40, 1/0 thru 4/0) and Machine screw sizes (#1 to #20) as requested by users.

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## More apps by Lucy Enterprises

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All apps by Lucy Enterprises: https://appshunter.io/developer/1656612108

## Related topics

[units converter for engineers](https://appshunter.io/ios/topics/units-converter-for-engineers)

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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 2026-06-01.*