# Engineering Unit Converter

> Reference

Canonical page: [https://chrome-stats.com/d/id468517228](https://chrome-stats.com/d/id468517228)

## Overview

- **ID:** `id468517228`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Vector 254 LLC
- **Category:** Reference
- **Rating:** 4.30 / 5 (86 ratings)
- **Version:** 3.0
- **Last updated:** 2017-12-20
- **First published:** 2011-10-05
- **Size:** 6.44 MB
- **Data as of:** 2026-09-22
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/engineering-unit-converter/id468517228)
- **Website:** [http://twitter.com/Vector254](http://twitter.com/Vector254)

## Description

Engineering Unit Converter is a streamlined, powerful tool designed for anyone who works with measurements and currencies. Built by engineering professionals, it presents 40+ unit types in a big, readable display. It supports entering mathematical expressions directly (for example, 1+3/8 in to mm), offers an integrated calculator, a mass fraction/mole fraction converter, a thermocouple module, and a physical constants database. Units can be reordered, hidden, and customized for quick access to your most-used data.

It also includes a versatile currency converter and a color-theme control panel under Settings+. Quick access to preferred units, smart display options, and links to our other apps help you stay productive.

## Rankings

- #147,109 — Overall
- #80 — engine

## Review summary

Reviews praise Engineering Unit Converter for being free, feature-rich, and easy to use, with a broad, sometimes missing set of units and customizable layouts. It’s a go-to tool for homework, labs, and DIY projects. However, users report frequent crashes on startup or during data entry, long ton conversion errors, and occasional device compatibility problems after updates, which significantly impact reliability. Addressing stability and long ton accuracy would greatly improve the overall experience.

### Pros

- Free app with a wide range of unit converter modules.
- Very easy to use, intuitive, quick, and accurate.
- Extensive range of units, including some that are missing from other apps.
- Valuable for engineering homework and professional work; versatile for DIY projects.
- Customizable layout and the ability to view multiple results at once.

### Cons

- Crashes frequently on startup or when entering data in various converters.
- Long ton/decimal conversion errors that affect accuracy.
- Device compatibility issues and crashes after updates (e.g., some iPads won’t open).

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Source: [Chrome-Stats](https://chrome-stats.com/d/id468517228)