# UNITS MASTER — Unit Conversion Calculator

> Universal unit conversion calculator for length, distance, and area with advanced calculation features. (iPhone/iPad app by Intemodino Group s.r.o..)

- Source: https://appshunter.io/ios/app/units-master/id1428926317 (this page in markdown: same URL + `.md`)
- Developer: [Intemodino Group s.r.o.](https://appshunter.io/developer/557849644)
- Category: Productivity, Utilities
- Price: $19.99
- Rating: 4.30/5 from 6 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 13 MB
- Languages: American English, Czech, Danish, Dutch, French (France), German (Germany), Italian, Japanese, Korean, Norwegian Bokmål and 8 more
- Released: 2018-09-13
- Data updated: 2026-08-26
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/units-master/id1428926317/reviews.md

## What is UNITS MASTER?

Innovative unit conversion calculator.
Get instant help with unit calculation and conversion! 
UNITS MASTER is a universal unit conversion calculator that allows you to instantly calculate and convert US and metric units of length, distance and area.

SUPPORTED DISTANCE AND LENGTH UNITS:
US/imperial units: mils, points, picas, inches, links, feet, yards, rods, chains, furlongs, miles, fathoms, nautical miles.
Metric units: millimeters, centimeters, decimeters, meters, kilometers.

SUPPORTED AREA UNITS:
US/imperial units: square mils, square inches, square links, square feet, square yards, squares, square rods, square chains, acres, square miles, townships.
Metric units: square millimeters(mm²), square centimeters(cm²), square decimeters(dm²), square meters(m²), ares, hectares, square kilometers(km²).

LENGTH AND AREA UNIT CALCULATOR:
- Calculates any combination of supported US and metric length and area units.
- Performs calculation in fractions and decimals.
- Complex calculations.
- Easy fraction input.
- Instantly converts results between different units. 
- Displays results in fractional and decimal forms.
- Shows answer in any supported unit(s). 

LENGTH AND AREA UNIT CONVERTER:
- 1000+ conversion combinations. 
- Converts units between US and metric systems.
- Converts between units within the same system.
- Converts between fractions and decimals.

ROUND RESULTS TO SPECIFIED PRECISION:
• Decimal results can be rounded to 0-9 decimal places. E.g. you may round results to the nearest 10ths, 100ths,  etc. By default, the app is set up to round to 2 decimal places. If you need to round results to the nearest whole number, select 0 decimal places.
• Rounding fractions to the nearest 1/2, 1/4, 1/8, 1/12, 1/16, 1/32, 1/64, 1/128, 1/256. If you do not need to round fractions, just select "-".

It addition to extensive unit conversion and calculation options, UNITS MASTER offers standard features such as basic operations, calculation with parentheses, calculations with fractions and decimals, exponents, square root, trigonometric functions, etc. 

Other features:
• Three virtual keyboards.
• 'Default Output Unit' option - select default output unit or use smart Auto option
• 'Output format' option: Fractions + Decimals, Auto, Fractions, Decimals.
• Choose the way the app shows foot and inch symbols - you may use abbreviations ft and in or ′ for foot and ″ for inch.
• Calculation history to view, recall, edit and share calculations. 
• Share calculation results by email.
• 'Undo' for the Clear command.
• Portrait and landscape mode. 
• Multiple themes to choose from.

Learn more about UNITS MASTER at https://unitsmaster.com
If you have any questions or need help with UNITS MASTER, please visit the online help and FAQ pages:
https://unitsmaster.com/en/help/ 
https://unitsmaster.com/en/faq.html

## Key features

- Extensive US and metric unit support
- Fractional and decimal calculations
- Customizable rounding precision
- Complex calculation capabilities
- Calculation history and sharing
- Multiple output formats

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/units-master/id1428926317/reviews.md

### 5/5 — A MUST have app for woodworking

*2026-08-13*

I have been doing woodworking for 4 yrs and this app has been a great tool for imperial to metric conversions, especially after starting learning Japanese joinery 8 months ago, as metric is what its been used and I found it to be much more accurate. Great app. Keep the good work! Semper Fi.

### 1/5 — Failure

*2025-08-11*

I just reinstalled the software, but still can't calculate the volume.

**Developer response:** Hello,
Currently the app supports length and area units, all the supported units you can find in the app description.
Thank you

### 5/5 — The best

*2020-03-14*

Simply the best app of its kind! Intuitive, and simple to use

### 5/5 — A true and much needed calculation pack

*2019-02-17*

Advanced features that performs mix number calculations with excellent presentation

## Frequently asked questions about UNITS MASTER

### What units can UNITS MASTER convert?

UNITS MASTER supports a wide range of US/imperial and metric units for length, distance, and area. This includes units like mils, inches, miles, millimeters, meters, kilometers, square inches, acres, hectares, and square kilometers.

### Can UNITS MASTER perform calculations beyond simple conversions?

Yes, UNITS MASTER offers advanced calculation features including basic operations, calculations with parentheses, exponents, square roots, and trigonometric functions, in addition to its unit conversion capabilities.

### How does UNITS MASTER handle rounding?

You can round decimal results to 0-9 decimal places. For fractions, you can round to common fractions like 1/2, 1/4, 1/8, and up to 1/256, or choose not to round.

### Does UNITS MASTER offer a calculation history?

Yes, UNITS MASTER provides a calculation history feature that allows you to view, recall, edit, and share your past calculations.

### What devices is UNITS MASTER available on?

UNITS MASTER is available on Mac, iPhone, iPad, and iPod.

### How often is UNITS MASTER updated?

The app was last updated on August 24, 2025, indicating regular updates to maintain functionality and add features.

### What is the age rating for UNITS MASTER?

UNITS MASTER has an age rating of 4+, making it suitable for a wide range of users.

### Does UNITS MASTER have ads?

No, UNITS MASTER does not contain advertisements, as indicated by the 'hasAds' flag being false.

## Version history (last 5 releases)

### 2.6.1 — 2025-08-24

- Fixed issue with unit exponents (higher than two)

### 2.6.0 — 2025-08-10

- Fixed issue with the color scheme selection

### 2.5.0 — 2025-08-05

- Now you can select the default output unit for calculation results.
- Fixed issue with displaying mixed results, e.g. area and length units together.
- Updated the 'Settings' window and the 'About' window.
- Updated the app icon.

### 2.2.0 — 2020-08-12

Updated virtual keyboard design.
Now ′ and ″ characters or ft or in are displayed on the keyboard depending on the Settings.
Minor bugs fixes.
Added additional length and area units.
Now UNITS MASTER supports:
- Length and distance units: mils, points, picas, inches, links, feet, yards, rods, chains, furlongs, miles, fathoms, nautical miles, millimeters, centimeters, decimeters, meters, kilometers.
- Area units: square mils, square inches, square links, square feet, square yards, squares, square rods, square chains, acres, square miles, townships, square millimeters, square centimeters, square decimeters, square meters, ares, hectares, square kilometers.

### 2.0.0 — 2020-06-26

Added additional keyboard with area units.
Now with UNITS MASTER you can calculate and convert units of area measurement, including:
square inches, square feet, square yards, acres, square miles, mm², cm², m², ha and km².
Minor bug fixes and improvements.

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All apps by Intemodino Group s.r.o.: https://appshunter.io/developer/557849644

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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 2026-08-26.*