---
title: "Unit Converter Calculator Pro - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "With Unit Converter Calculator you will be able to convert all types of units from Metric to Imperial systems & Vice-versa in seconds. Finding the area, speed, distance, temperature, volume, time, wei"
---

# Unit Converter Calculator Pro — United States
> Simple With Metric & Imperial

![Unit Converter Calculator Pro App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/d9/89/0b/d9890b91-f9d0-bbf2-2d39-519d4839d40c/AppIcon-0-0-1x_U007emarketing-0-7-0-85-220.jpeg/400x400bb.jpg)

**Developer:** [Rome Rock](https://apptail.io/developer/rome-rock-Lfw) (Mexico)
**Category:** Utilities
**Rating:** 4.7/5 (976 ratings)
**Price:** Free
**Bundle ID:** com.romerock.apps.utilities.quickunitconverter
**Store:** Apple App Store
**Country:** United States
**Version:** 2.0.4 (released 2023-10-31)
**Original Release:** 2018-03-06

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1343845631)
**AppTail Page:** [https://apptail.io/app/unit-converter-calculator-pro-ZZn/united-states](https://apptail.io/app/unit-converter-calculator-pro-ZZn/united-states)

## Unit Converter Calculator Pro Description
With Unit Converter Calculator you will be able to convert all types of units from Metric to Imperial systems & Vice-versa in seconds. Finding the area, speed, distance, temperature, volume, time, weight, energy, power and more converted into different units.

These are some of the conversions you can easily do with our * Simple Unit Converter Calculator *

•	Area: Yards, Acres, Hectares & Square: Meters, Miles, Inches & Feet.
•	Distance / Length: Meters, Miles, Inches, Feet, Yards, Nautical Miles.
•	Speed / Velocity: Kilometers / Miles per hour, Feet per second, Knots, Speed of sound, Speed of light.
•	Temperature: Celsius, Fahrenheit, Kelvin.
•	Time: Seconds, Minutes, Hours, Weeks, Months, Years.
•	Volume: Litters, Cubic Meters, Cubic Inches, Cubic Feet, Gallons, Quarts, Pints, Cups, Teaspoons, Tablespoons, Fluid ounces.
•	Weight / Mass: Grams, Kilograms, Milligrams, Pounds, Ounces, Tons, Stones.
•	Energy / Power / Torque: Watts, Joules, Calories, ElectronVolt, BTU, Therms, Foot-Pond.

Plus an advanced view which makes available Scientific prefixes like Exa, Peta, Tera, Giga, Mega, Kilo, Deci, Centi, Milli, Micro, Nano, Pico, etc. Allowing you to make more scientific calculations.

** Main Features **

•	The app is Multi-language, so you will get the correct unit name based on your language, either using the option or manually changing it. 
•	Our library of available units to convert has the best selection, preventing the display of units that no one ever uses and displaying only the most used ones.
•	Make every calculation and combination between units possible, including scientific notation and time-based units.
•	History of your latest conversions so you can view them instantly without needing to recalculate every time.
•	No internet connection is needed to use this app.

Download Now! Quick Unit Converter Calculator for FREE!

## Unit Converter Calculator Pro Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple118/v4/a1/cc/2c/a1cc2c3a-2dfc-a38c-3e9d-6a4f89ca94fc/pr_source.jpg/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple118/v4/29/4f/1f/294f1fb6-fc3a-4e5e-7389-14340f81e5a1/pr_source.jpg/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple118/v4/84/84/d3/8484d36e-680e-0c74-c5eb-9c346333be6f/pr_source.jpg/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple118/v4/10/57/30/10573029-9571-6769-e8dc-ff6147c3eb59/pr_source.jpg/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/Purple128/v4/45/94/b7/4594b76a-b94a-d928-3d0b-9291dd30427b/pr_source.jpg/1242x2688.png)

## Unit Converter Calculator Pro Rating Breakdown in United States
- 5 stars: 794 (81%)
- 4 stars: 125 (13%)
- 3 stars: 32 (3%)
- 2 stars: 9 (1%)
- 1 stars: 16 (2%)

## Unit Converter Calculator Pro Reviews in United States

### ***** "Excellent Tool"
Excellent converter for we Americans who should have gone to the metric system 50 years ago.
-- AvatarLana, 2025-05-26

### ***** "Units"
Goog for social
-- kplkse, 2025-01-02

### ****- "it's got it all"
in a really hard to use interface.

simplest improvement for this app would add a favorite conversations. having to manually navigate the drop downs all the time is a huge drag.

maybe color code the different sections too. help my brain remember where to do certain tasks. 

ultimately searching google is just faster and easier..
-- locainex, 2024-11-03

### *---- "Changing to something else"
This does not have psi, kpa, or other pressure conversions anymore.
-- Superjfreak, 2024-05-29

### ***-- "Works but could be easier"
Works pretty well but if you are going back and forth between 2 units you always need to choose which ones. Would be great to add the reverse button.
-- Pinkertguine, 2024-04-15

### ****- "It’s great!"
I’ve been looking for a unit calculator/converter and I found one (this)! But it doesn’t have all of the units but I love it!
-- Eliosaurus12, 2022-10-13

### ****- "Could be easier to use"
Fussy to pick the kind of unit and scroll to the right to and from units each time. It would be great if recently/frequently accessed conversions were a single tap or easier to access. But it’s a useful app.
-- Reader and reviewer, 2020-12-20

### ****- "?!"
I T 
I S
V E R Y
C O O L
!!!!
YOU
KNOW
?!
INSANE!??’
-- hummingbird guy, 2020-08-08

### ***** "I use this app constantly"
As a mechanic
/ machinist, I’m always having to convert metric to inch values. This app saves me tons of time. I don’t know how I got along without it!
-- mutterranch, 2020-07-25

### ***** "Stylish"
Looks good and works well...
-- The Comodo, 2020-03-27

[View all Unit Converter Calculator Pro reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)

## Unit Converter Calculator Pro In-App Purchases
| Item | Price |
|------|-------|
| Remove Ads & Unlock Themes 1 | $4.99 |
| Remove Ads & Unlock Themes 2 | $6.99 |
| Remove Ads & Unlock Themes 3 | $9.99 |
| Remove Ads & Unlock Themes | $2.99 |


## Unit Converter Calculator Pro Discovered Keywords
- unit converter
- unit converter app
- weight units converter
- free unit converter
- unit converter pro
- unit conversion
- unit converter simple
- speed units converter
- uni converter
- ario mass

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## Unit Converter Calculator Pro Available In
- [United States](https://apptail.io/app/unit-converter-calculator-pro-ZZn/united-states)
- [Canada](https://apptail.io/app/unit-converter-calculator-pro-ZZn/canada)
- [Mexico](https://apptail.io/app/unit-converter-calculator-pro-ZZn/mexico)
- [France](https://apptail.io/app/unit-converter-calculator-pro-ZZn/france)
- [Australia](https://apptail.io/app/unit-converter-calculator-pro-ZZn/australia)
- [Colombia](https://apptail.io/app/unit-converter-calculator-pro-ZZn/colombia)
- [United Kingdom](https://apptail.io/app/unit-converter-calculator-pro-ZZn/united-kingdom)
- [Chile](https://apptail.io/app/unit-converter-calculator-pro-ZZn/chile)
- [Spain](https://apptail.io/app/unit-converter-calculator-pro-ZZn/spain)
- [India](https://apptail.io/app/unit-converter-calculator-pro-ZZn/india)
- [Argentina](https://apptail.io/app/unit-converter-calculator-pro-ZZn/argentina)
- [Dominican Republic](https://apptail.io/app/unit-converter-calculator-pro-ZZn/dominican-republic)
- [Ecuador](https://apptail.io/app/unit-converter-calculator-pro-ZZn/ecuador)
- [Peru](https://apptail.io/app/unit-converter-calculator-pro-ZZn/peru)
- [Malaysia](https://apptail.io/app/unit-converter-calculator-pro-ZZn/malaysia)
- [Switzerland](https://apptail.io/app/unit-converter-calculator-pro-ZZn/switzerland)
- [Philippines](https://apptail.io/app/unit-converter-calculator-pro-ZZn/philippines)
- [Belgium](https://apptail.io/app/unit-converter-calculator-pro-ZZn/belgium)
- [South Africa](https://apptail.io/app/unit-converter-calculator-pro-ZZn/south-africa)
- [Panama](https://apptail.io/app/unit-converter-calculator-pro-ZZn/panama)
- [Singapore](https://apptail.io/app/unit-converter-calculator-pro-ZZn/singapore)
- [Ghana](https://apptail.io/app/unit-converter-calculator-pro-ZZn/ghana)
- [United Arab Emirates](https://apptail.io/app/unit-converter-calculator-pro-ZZn/united-arab-emirates)
- [Germany](https://apptail.io/app/unit-converter-calculator-pro-ZZn/germany)
- [Nigeria](https://apptail.io/app/unit-converter-calculator-pro-ZZn/nigeria)
- [Pakistan](https://apptail.io/app/unit-converter-calculator-pro-ZZn/pakistan)
- [China](https://apptail.io/app/unit-converter-calculator-pro-ZZn/china)
- [Egypt](https://apptail.io/app/unit-converter-calculator-pro-ZZn/egypt)
- [Greece](https://apptail.io/app/unit-converter-calculator-pro-ZZn/greece)
- [New Zealand](https://apptail.io/app/unit-converter-calculator-pro-ZZn/new-zealand)
- [Russia](https://apptail.io/app/unit-converter-calculator-pro-ZZn/russia)
- [Saudi Arabia](https://apptail.io/app/unit-converter-calculator-pro-ZZn/saudi-arabia)
- [Jordan](https://apptail.io/app/unit-converter-calculator-pro-ZZn/jordan)
- [Thailand](https://apptail.io/app/unit-converter-calculator-pro-ZZn/thailand)
- [Türkiye](https://apptail.io/app/unit-converter-calculator-pro-ZZn/turkey)
- [Algeria](https://apptail.io/app/unit-converter-calculator-pro-ZZn/algeria)
- [Kuwait](https://apptail.io/app/unit-converter-calculator-pro-ZZn/kuwait)
- [Slovenia](https://apptail.io/app/unit-converter-calculator-pro-ZZn/slovenia)
- [Poland](https://apptail.io/app/unit-converter-calculator-pro-ZZn/poland)
- [Indonesia](https://apptail.io/app/unit-converter-calculator-pro-ZZn/indonesia)
- [Brazil](https://apptail.io/app/unit-converter-calculator-pro-ZZn/brazil)
- [Cyprus](https://apptail.io/app/unit-converter-calculator-pro-ZZn/cyprus)
- [Ukraine](https://apptail.io/app/unit-converter-calculator-pro-ZZn/ukraine)
- [Denmark](https://apptail.io/app/unit-converter-calculator-pro-ZZn/denmark)
- [Hong Kong SAR China](https://apptail.io/app/unit-converter-calculator-pro-ZZn/hong-kong)
- [Hungary](https://apptail.io/app/unit-converter-calculator-pro-ZZn/hungary)
- [Ireland](https://apptail.io/app/unit-converter-calculator-pro-ZZn/ireland)
- [Czechia](https://apptail.io/app/unit-converter-calculator-pro-ZZn/czechia)
- [Iceland](https://apptail.io/app/unit-converter-calculator-pro-ZZn/iceland)
- [Italy](https://apptail.io/app/unit-converter-calculator-pro-ZZn/italy)
- [Kenya](https://apptail.io/app/unit-converter-calculator-pro-ZZn/kenya)
- [South Korea](https://apptail.io/app/unit-converter-calculator-pro-ZZn/south-korea)
- [Lebanon](https://apptail.io/app/unit-converter-calculator-pro-ZZn/lebanon)
- [Malta](https://apptail.io/app/unit-converter-calculator-pro-ZZn/malta)
- [Netherlands](https://apptail.io/app/unit-converter-calculator-pro-ZZn/netherlands)
- [Norway](https://apptail.io/app/unit-converter-calculator-pro-ZZn/norway)
- [Uzbekistan](https://apptail.io/app/unit-converter-calculator-pro-ZZn/uzbekistan)
- [Bahrain](https://apptail.io/app/unit-converter-calculator-pro-ZZn/bahrain)
- [Bulgaria](https://apptail.io/app/unit-converter-calculator-pro-ZZn/bulgaria)
- [Portugal](https://apptail.io/app/unit-converter-calculator-pro-ZZn/portugal)
- [Qatar](https://apptail.io/app/unit-converter-calculator-pro-ZZn/qatar)
- [Vietnam](https://apptail.io/app/unit-converter-calculator-pro-ZZn/vietnam)
- [Sweden](https://apptail.io/app/unit-converter-calculator-pro-ZZn/sweden)
- [Slovakia](https://apptail.io/app/unit-converter-calculator-pro-ZZn/slovakia)
- [Taiwan](https://apptail.io/app/unit-converter-calculator-pro-ZZn/taiwan)
- [Uganda](https://apptail.io/app/unit-converter-calculator-pro-ZZn/uganda)
- [Finland](https://apptail.io/app/unit-converter-calculator-pro-ZZn/finland)
- [Brunei](https://apptail.io/app/unit-converter-calculator-pro-ZZn/brunei)
- [Tunisia](https://apptail.io/app/unit-converter-calculator-pro-ZZn/tunisia)
- [Israel](https://apptail.io/app/unit-converter-calculator-pro-ZZn/israel)
- [Kazakhstan](https://apptail.io/app/unit-converter-calculator-pro-ZZn/kazakhstan)
- [Estonia](https://apptail.io/app/unit-converter-calculator-pro-ZZn/estonia)
- [Paraguay](https://apptail.io/app/unit-converter-calculator-pro-ZZn/paraguay)
- [Croatia](https://apptail.io/app/unit-converter-calculator-pro-ZZn/croatia)
- [Romania](https://apptail.io/app/unit-converter-calculator-pro-ZZn/romania)
- [Bermuda](https://apptail.io/app/unit-converter-calculator-pro-ZZn/bermuda)
- [Armenia](https://apptail.io/app/unit-converter-calculator-pro-ZZn/armenia)
- [Austria](https://apptail.io/app/unit-converter-calculator-pro-ZZn/austria)
- [Luxembourg](https://apptail.io/app/unit-converter-calculator-pro-ZZn/luxembourg)
- [Latvia](https://apptail.io/app/unit-converter-calculator-pro-ZZn/latvia)
- [Madagascar](https://apptail.io/app/unit-converter-calculator-pro-ZZn/madagascar)
- [North Macedonia](https://apptail.io/app/unit-converter-calculator-pro-ZZn/north-macedonia)
- [Azerbaijan](https://apptail.io/app/unit-converter-calculator-pro-ZZn/azerbaijan)
- [Lithuania](https://apptail.io/app/unit-converter-calculator-pro-ZZn/lithuania)
- [Belarus](https://apptail.io/app/unit-converter-calculator-pro-ZZn/belarus)
- [Sri Lanka](https://apptail.io/app/unit-converter-calculator-pro-ZZn/sri-lanka)
- [Cayman Islands](https://apptail.io/app/unit-converter-calculator-pro-ZZn/cayman-islands)
- [Uruguay](https://apptail.io/app/unit-converter-calculator-pro-ZZn/uruguay)
- [Nepal](https://apptail.io/app/unit-converter-calculator-pro-ZZn/nepal)
- [Japan](https://apptail.io/app/unit-converter-calculator-pro-ZZn/japan)
- [Oman](https://apptail.io/app/unit-converter-calculator-pro-ZZn/oman)
- [Honduras](https://apptail.io/app/unit-converter-calculator-pro-ZZn/honduras)

---

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