Setup of the calculator on Xiaomi: from basic operations to engineering calculations

The calculator on Xiaomi, Redmi and Poco smartphones is not just a tool for basic computing; its minimalist interface hides advanced features that not everyone knows about. Depending on the device model and the version of MIUI, the capabilities of the application can vary from a simple calculator with a history of operations to a full-fledged engineering tool with support for trigonometric functions, logarithms and even programming.

Many people mistakenly believe that the standard Calculator application does not require configuration — say, open and use. However, even basic operations (such as interest or erecting to a degree) can work incorrectly, except for the nuances of the interface. And even about hidden modes — such as an engineering calculator or currency converter — most users do not even suspect. In this article, we will discuss all the ways to configure the calculator on Xiaomi, including solving typical problems and activating hidden functions.

Where to find a calculator on Xiaomi and how to open it

On most Xiaomi devices, the standard calculator is preinstalled and hidden in the app menu, but its location may vary depending on the MIUI version:

• 📱 MIUI 12/13/14: Swipe up the home screen to open the app menu and find the Calculator icon (usually gray with digits).
• 🔍 Search by system: Swipe down on the home screen and type "calculator" in the search bar. The system will show the application even if it is hidden in a folder.
• ⚙️ Through Settings: Go to Settings → Annexes → Manage applications and type in the search “calculator».

If the calculator has been removed (which is unlikely, since it is a system application), it can be restored through Settings → Apps → Remove / Restore system applications. On some models (for example, Poco F5 or Redmi Note 12), the calculator can be integrated into the Quick Settings Panel – to do this, swipe down from the top edge of the screen and find the calculator icon among other widgets.

⚠️ Note: On custom firmware devices (such as LineageOS or Pixel Experience), the standard Xiaomi calculator may not be available, in which case you will need to install an alternative from Google Play, such as Google Calculator or CalcKit.

Basic calculator settings: interface and operation history

After the first run, the calculator will open in simple mode, with large buttons for elementary operations, where you can add, subtract, multiply and divide, and use percentages (%) and change the sign of the number (+/-).

• 📜 Operations history: Press the arrow up (↑) In the upper right corner, you can see the latest computations, and you can copy the results or clear the history.
• 🔄 Rounding up results: Long-term pressing on the result (for example, 3.1415926535) will allow you to copy it rounded to the desired number of characters.
• 📱 Horizontal Mode: Turning the screen 90° activates the extended keyboard with additional functions (even in simple mode).

To reset all calculator settings (for example, if history is filled or the application is not working correctly), go to Settings → Apps → Calculator → Storage → Clear data. This will delete the entire history of operations and return the interface to factory settings.

How to turn on an engineering calculator on Xiaomi

The Engineering Mode is an advanced version of the calculator with support for trigonometric functions (sin, cos, tan), logarithms (log, ln), factorials (n!), and even complex numbers.

1. Through the app menu: Open the standard calculator. Press three dots (⋮) In the upper right corner, select the Engineering Calculator.
2. On some models (for example, Xiaomi 13 Pro or Redmi K60) just turn the smartphone in a horizontal position – the calculator will automatically switch to engineering mode.

In engineering mode, additional functions are available:

⚠️ Attention: On devices with MIUI 14 And newer in engineering mode may not have a button Rad/Deg To get it back, update the calculator app via Google Play (if available), or use alternative apps like RealCalc to switch between degrees and radians.

Check out the MIUI version (Settings → About the phone)

Update the calculator in Google Play (if possible)

Activate horizontal mode for convenience

Save important formulas in a notebook in advance-->

Hidden functions of the calculator: converter of currencies and units of measurement

Few people know, but the standard Xiaomi calculator can convert currencies, length, weight and even temperature, which is hidden in engineering mode and works like this:

• 💱 Currency Converter: Enter the amount (e.g. 100), then click on the currency icon (₽/$/€) Choose the source and target currency, and the courses are updated automatically when you connect to the Internet.
• ⚖️ Unit Converter: Click on three points (⋮) → Unit converter. Categories are available here: length, weight, volume, temperature, etc. For example, you can convert 1 mile per kilometer or 100 miles.°F °C.
• ⏱️ Time Converter: Useful for translating clocks into minutes/seconds or calculating time zones.

Important: The currency converter requires an active Internet connection, as the courses are downloaded from Xiaomi servers.

• Date and time settings (should be relevant).
• Application permissions (internet access).
• Region of device (some currencies may not be available in certain countries)

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If the currency converter shows irrelevant rates, try to manually update the data: close the calculator, turn off / turn on the Internet and open the application again.

Configure the display and calculator themes

You can adapt the look of the calculator to your preferences.

1. Open the app and click on three dots (⋮) top-right.
2. Select Settings (or Themes, depending on the version of MIUI).
3. Options are available here: 🌓 Dark/light theme: Synced with system settings or set separately. 🔢 Button size: You can zoom in for convenience (useful on larger screens, like Xiaomi 13 Ultra). 📏 Display accuracy: Adjust the number of decimal places (2 to 10).

On devices with MIUI 14 and later, floating buttons are available, which pop up slightly when pressed, which improves tactile feedback, and if this animation is annoying, you can turn it off in the calculator settings.

For visually impaired users, it is useful to know that Xiaomi has support for TalkBack, a voice assistant that voices buttons that are pressed, to activate it:

1. Go to Settings → Special Opportunities → TalkBack.
2. Turn on the function and go back to the calculator – now all actions will be accompanied by voice prompts.

Solving problems with the calculator on Xiaomi

Sometimes the calculator may not work correctly, it may not save history, it may not open at all, or it may not open at all.

If the calculator started to “glutch” after the MIUI update, try the following steps:

1. Remove app updates (if it was updated via Google Play): Settings → Annexes → Calculator → ⋮ → Remove updates.
2. Reset the application settings to factory.
3. Check your device for viruses (sometimes malware interferes with system applications).

If you often work with formulas, look for Mathway or Photomath – these applications not only count, but also solve equations by showing a step-by-step process.

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Xiaomi’s standard calculator is suitable for most household tasks, but for professional calculations (engineering, finance) it is better to use specialized applications.

FAQ: Frequent questions about the calculator on Xiaomi