Windows Calculator

ApplicationMicrosoft Corporation

Also called calculator, calc, windows calc

Microsoft CorporationSystem

The Store calculator. The window is CalculatorApp.exe. calc.exe still exists as a stub on current Windows. It is not calc.exe alone.

What you need to know

The calculator window is CalculatorApp.exe. calc.exe is the stub.

Windows Calculator is a Store app. calc.exe still exists as a launch helper. Get it back from the Store listing if a script removed it. It is not a lone System32 calculator anymore.

What is it?: The Windows Store calculator
Is calc.exe the whole app?: No. It is a stub. CalculatorApp.exe is the window
Can I remove it?: Yes from Apps. Reinstall from the Store

Feex says

If the window is Calculator and the image is CalculatorApp, I treat that as the real app. I do not delete calc.exe to close it. I reinstall the Store package if a debloat script removed it.

What is Windows Calculator?

CalculatorApp.exe is Microsoft Windows Calculator in WindowsApps. calc.exe is the helper that starts it on current Windows. Ending calc.exe may not close the window. Ending CalculatorApp.exe does.

If you have never used it

If you open Calculator from Start, the window is the Store app CalculatorApp.exe. calc.exe still lives in System32 as a stub that starts it. Graphing and converters live in this app. It is not the old 16-bit calc from Windows 3.1, and it is not a third-party calc.exe on the Desktop.

What is it used for?

Standard, scientific, and graphing modes

Those modes are this Store app. A random calc.exe in Downloads is not Microsoft.

Unit and currency converters

Converter pages are Calculator features. Paint and Photos do not do this math.

Launch via calc.exe or Start

Win+R calc still works because of the stub. The UI you see is CalculatorApp.exe.

Who is it for?

Anyone who opened Calculator from Start
People who ended calc.exe and the window stayed
Users who lost Calculator after a debloat script

Current status

Windows Calculator (1985) is a current calculator from Microsoft Corporation. The vendor still points Windows users at https://apps.microsoft.com/detail/9wzdncrfhvn5.

How old is it?

Calculator shipped with Windows in 1985. The current app is a Store rewrite. calc.exe remains as a launch name. A Windows 95 calc screenshot is nostalgia, not CalculatorApp.exe.

Versions

Major channels first. Exact build numbers are not all verified here.

Store Calculator

calc.exe stub

System requirements

Values follow the publisher's public guidance. Workload still changes the real need.

Minimum

Minimum system requirements
Operating system	Ships with supported Windows 10 and Windows 11
RAM	Enough for Windows plus this app. Heavy projects want more.

Resource profile

CPU demand: Low except graphing
RAM demand: Moderate for a packaged app

Installed processes

These executables belong to this product when it is installed.

Installed processes
CalculatorApp.exe	Store Calculator window
calc.exe	System32 shim that starts the Store app

Startup components

Calculator starts when you open it. A Startup shortcut is something you added.

File locations

Common Windows Calculator locations
Typical install	C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_*\

File formats

It calculates. History can export on some builds

Common problems

People end calc.exe and the window stays

The window is CalculatorApp.exe. End that row, or close the window.

Calculator missing after a debloat script

Reinstall from the Store. Do not drop a random calc.exe on the desktop.

Getting unstuck

Start > Calculator. If that opens, CalculatorApp.exe is the process

calc.exe may flash and vanish. That is the stub, not a second calculator.

Repair or reset Calculator in Settings > Apps

That is the supported fix, not a System32 replace.

Do not download calc.exe from a filename site

The Store package is Microsoft.WindowsCalculator. Paint is a different app if you meant to draw.

Alternatives

A hardware calculator. PowerToys has no replacement for this. Third-party calc apps are optional.

Official help and downloads

Start with the vendor. Random exe sites are not a support channel.

Official contacts
Download	apps.microsoft.com/detail/9wzdncrfhvn5 Official installer or vendor page
Help	support.microsoft.com/windows/calculator Vendor support
Official site	apps.microsoft.com/detail/9wzdncrfhvn5 Start here, not a random exe host

Related hardware

Any current Windows PC. Graphing is heavier than standard mode. It is not a GPU workload.

Technical details

Vendor version numbers change. This article does not pin a build.

Sources and verification

Reviewed by Feex editorial. Last verified August 2026 Status: Feex Reviewed. How we research.

Windows Calculator official site · Vendor product page
Windows Calculator help · Vendor support
Microsoft Support: Calculator · Modes and features
Foxhole process map · First-party samples on Windows PCs. Not a lab benchmark.

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