Calculator App Review

  • Our Rating: 4 / 5

Updated 03-23-2023

Version Varies
Google Play Downloads 1,520,425,809
Developer Xiaomi Inc.
Screenshot From Our Calculator Review


One of the most essential tools on any mobile device is a calculator. For Android users, there are many calculator apps available in the market, but one of the most popular ones is the Calculator app developed by MIUI. This app comes pre-installed in many Android devices and is available for free on the Google Play Store under the Tools category. The app’s ID is com.miui.calculator.


Basic Calculator

The Calculator app provides a simple and user-friendly interface that allows users to perform basic mathematical calculations such as addition, subtraction, multiplication, and division. The app also supports decimal numbers and has a large display screen for easy readability.

Scientific Calculator

In addition to the basic calculator, the app also includes a scientific calculator with advanced functions such as trigonometric functions, logarithmic functions, exponential functions, and more. This feature makes the app more useful for students and professionals who need to perform complex calculations.

Unit Converter

The Calculator app also includes a unit converter that can convert different units of measurement such as length, weight, volume, temperature, and more. This feature eliminates the need for users to download separate unit converter apps and makes the app more versatile.

BMI Calculator

The app also includes a body mass index (BMI) calculator that can help users calculate their BMI and determine their health status based on their height and weight. This feature is beneficial for people who are health-conscious and want to keep track of their fitness goals.


Free and Ad-free

One of the major advantages of the Calculator app is that it is completely free to use and does not contain any advertisements. Users can enjoy all the features of the app without any annoying pop-up ads or in-app purchases.

User-Friendly Interface

The app’s interface is simple and intuitive, making it easy for users to navigate and use all the features efficiently. The large display screen and clear buttons make it easy for users to input numbers and perform calculations without any hassle.


No Customization Options

The Calculator app does not offer any customization options, such as changing the app’s theme or font style. This may be a drawback for users who like to personalize their apps according to their preferences.

Limited Functionality

While the app includes many features like a scientific calculator and unit converter, it does have limited functionality compared to other calculator apps available in the market. This may be a disadvantage for users who require more advanced features or functionalities.

Comparison to Similar Apps

Compared to other popular calculator apps like Google Calculator or Casio Scientific Calculator, the Calculator app developed by MIUI has fewer features and limited customization options. However, it is a reliable and user-friendly app that provides all the basic functionalities that most users need. If you require more advanced features, you may want to consider using a different calculator app.

Tips for Using the App

  • Swipe left or right on the scientific calculator to access advanced functions.
  • Long press on the unit converter to customize the available options.
  • Tap on the BMI calculator to input your height and weight, and the app will automatically calculate your BMI.
  • Tap and hold on the delete button to clear all the input fields.


The Calculator app developed by MIUI is a straightforward and reliable calculator app that provides all the essential features that most users need. Its user-friendly interface, ad-free experience, and versatile functionalities make it an excellent choice for anyone looking for a simple and easy-to-use calculator app. However, if you require more advanced features, you may want to consider using a different calculator app.