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microsoft
calculator
C#2019–2026
microsoft / calculator

calculator

Windows Calculator: A simple yet powerful calculator that ships with Windows

Mobile & Desktop
Explore on GitHubRead Hacker News discussions
62Distinct people
67Mentions
0Explicit recommenders
31.1KGitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

Windows Calculator: A simple yet powerful calculator that ships with Windows

GitHub

Where it is used

No documented product use was verified in the last source check.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

Mentioned in the same Hacker News threads. That is not proof they are substitutes.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 1:49:46 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year67 dated mentions

Observed mentions: 2019-03-06 18:59:10 UTC to 2026-04-09 09:22:01 UTC.

01020302019-01-01 00:00:00 UTC to 2020-01-01 00:00:00 UTC (exclusive): 30 mentions; 5 submissions, 25 comments20192020-01-01 00:00:00 UTC to 2021-01-01 00:00:00 UTC (exclusive): 7 mentions; 0 submissions, 7 comments2021-01-01 00:00:00 UTC to 2022-01-01 00:00:00 UTC (exclusive): 8 mentions; 0 submissions, 8 comments2022-01-01 00:00:00 UTC to 2023-01-01 00:00:00 UTC (exclusive): 8 mentions; 1 submissions, 7 comments20222023-01-01 00:00:00 UTC to 2024-01-01 00:00:00 UTC (exclusive): 5 mentions; 1 submissions, 4 comments2024-01-01 00:00:00 UTC to 2025-01-01 00:00:00 UTC (exclusive): 3 mentions; 0 submissions, 3 comments2025-01-01 00:00:00 UTC to 2026-01-01 00:00:00 UTC (exclusive): 5 mentions; 0 submissions, 5 comments2026-01-01 00:00:00 UTC to 2027-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments. Incomplete calendar period.2026*

* An incomplete calendar period is marked with an outlined bar. Its count is not directly comparable with a full period.

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
20192019-01-01 00:00:00 UTC2020-01-01 00:00:00 UTC30525
20202020-01-01 00:00:00 UTC2021-01-01 00:00:00 UTC707
20212021-01-01 00:00:00 UTC2022-01-01 00:00:00 UTC808
20222022-01-01 00:00:00 UTC2023-01-01 00:00:00 UTC817
20232023-01-01 00:00:00 UTC2024-01-01 00:00:00 UTC514
20242024-01-01 00:00:00 UTC2025-01-01 00:00:00 UTC303
20252025-01-01 00:00:00 UTC2026-01-01 00:00:00 UTC505
2026 (partial)2026-01-01 00:00:00 UTC2027-01-01 00:00:00 UTC101

From the project README

An excerpt from the repository, fetched Nov 13, 2026.

Read the project’s introduction
Calculator The Windows Calculator app is a modern Windows app written in C++ and C# that ships pre-installed with Windows. The app provides standard, scientific, and programmer calculator functionality, as well as a set of converters between various units of measurement and currencies. Calculator ships regularly with new features and bug fixes. You can get the latest version of Calculator in the Microsoft Store. Features Standard Calculator functionality which offers basic operations and evaluates commands immediately as they are entered. Scientific Calculator functionality which offers expanded operations and evaluates commands using order of operations. Programmer Calculator functionality which offers common mathematical operations for developers including conversion between common bases. Date Calculation functionality which offers the difference between two dates, as well as the ability to add/subtract years, months and/or days to/from a given input date. Calculation history and memory capabilities. Conversion between many units of measurement. Currency conversion based on data retrieved from Bing. Infinite precision for basic arithmetic operations (addition, subtraction, multiplication, division) so that calculations never lose precision. Getting started Prerequisites: Your computer must be running Windows 11, build 22000 or newer. Install the latest version of Visual Studio (the free community edition is sufficient). Install the "Universal Windows Platform Development" workload. Install the optional "C++ Universal Windows Platform tools" component. Install the latest Windows 11 SDK. Install the XAML Styler Visual Studio extension. Get the code: git clone https://github.com/Microsoft/calculator.git Open src\Calculator.slnx in Visual Studio to build and run the Calculator app. For a general description of the Calculator project architecture see ApplicationArchitecture.md. To run the UI Tests, you need to make sure that Windows Application Driver (WinAppDriver) is installed. Contributing Want to contribute? The team encourages community feedback and contributions. Please follow our contributing guidelines. If Calculator is not working properly, please file a report in the Feedback Hub. We also welcome issues submitted on GitHub. Roadmap For information regarding Windows Calculator plans and release schedule, please see the Windows Calculator Roadmap. Graphing Mode Adding graphing calculator functionality is on the project roadmap and we hope that this project can create a great end-user experience around graphing. To that end, the UI from the official in-box Windows Calculator is currently part of this repository, although the proprietary Microsoft-built graphing engine, which also drives graphing in Microsoft Mathematics and OneNote, is not. Community members can still be involved in the creation of the UI, however developer builds will not have graphing functionality due to the use of a mock implementation of the engine built on top of a common graphing API. Diagnostic Data This project collects usage data and sends it to Microsoft to help improve our products and services. Read our privacy statement to learn more. Diagnostic data is disabled in development builds by default, and can be enabled with the SEND_DIAGNOSTICS build flag. Currency Converter Windows Calculator includes a currency converter feature that uses mock data in developer builds. The data that Microsoft uses for the currency converter feature (e.g., in the retail version of the application) is not licensed for your use. The mock data will be clearly identifiable as it references planets instead of countries, and remains static regardless of selected inputs. Reporting Security Issues Please refer to SECURITY.md. License Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT License.
Read the full README on GitHub

What Hacker News says

67 sources
m132·Apr 9, 2026
Run OpenSnitch for a while and you'll quickly realize how much of your system does phone home. Off the top of my head: - GNOME Shell (extension updates without a way to disable this, weather), - GNOME Calculator (currency exchange rates), - NetworkManager (periodic hotspot portal checks in most configurations), - GDB (debuginfod enabled by default), - Firefox (extension updates, push notifications, feature flags, telemetry, ..., some parts cannot be disabled), - VSCodium (Open VSX callbacks even when installing extensions from disk with updates disabled, JSON schema auto-downloads, extensions making their own unsolicited requests, ...), - Electron (dictionary updates from Google servers, no way of disabling; includes any application running on top of upstream Electron, such as Signal, Discord, etc.), - GoldenDict (audio samples fetched fr
Read the rest
om the Internet on word look-up, no way to disable) Of course, this is nothing compared to Windows [0] and macOS [1], but the malpractice of making Internet connections without asking, by default, has unfortunately been finding its way everywhere since modems stopped making audible sounds. Having read about PRISM and seen the leaked dashboards of Paragon Graphite (said to be used by ICE), and with LLMs bridging the gap between mass and targeted surveillance, I don't want any of this. [0] https://github.com/microsoft/calculator/blob/ffd0519676019a0... [1] https://sneak.berlin/20201112/your-computer-isnt-yours/
In LittleSnitch for Linux
fkyoureadthedoc·Aug 20, 2025
It's probably very hardware dependent now, just like it was back then. My calculator opens to interactive in much less than 1 second, but I've got a 9800x3d and fast memory and nvme drive. The other guy saying his start menu takes 8 seconds to open probably has a pretty shit computer. I definitely got the stupid hourglass in win 95 when trying to open anything, but my understanding of computers at the time was that black ones were faster than beige ones, so my computer was probably shit. I tried to look up calculator win 95 vids on YouTube, there are a couple. One gets an hourglass - but less than a second, one is instant, one shows the calculator crashing lol. During this I also found out that Microsoft Calculator is open source: https://github.com/microsoft/calculator
In FFmpeg Assembly Language Lessons
jodrellblank·Dec 13, 2022
> "despite not significantly changing in functionality since Windows 3.11." Here you can run Win 3.1 in a VM in your browser with a click: https://copy.sh/v86/?profile=windows31 and Calculator is in accessories. Make sure to put it in View -> Scientific mode for a full comparison. Now launch Windows 10 Calculator, you'll see that it is resizable, Win 3.1 calulator can only be minimised. Win 10 shows Unicode characters like Pi, square root, superscript exponentials, Win 3.1 shows them as "x^y" and the letters "PI". Win 3.1 has a memory. Win 10 has a history log of calculations done, a scrollable editable copyable history and clicking on the entries brings them back to do again. Win 3.1 has a bug where (2.01 - 2 == 0), Win 10 has that fixed. Win 3.1 has normal and scientific mode, Win 10 has normal, scientific, date calculation, multiple un
Read the rest
it converters, equation graphing with customisable theme, zoomable scrollable live updating high quality, themeable graph. Win 10 integrates with the Windows contacts in some way to let you share graphed equations with other people. Currency conversion pulls currencies and live rates from the internet. Win 10 has Programmer mode which does base conversion, logic gates, bit shifting, bitwise number representation with click-to-toggle-bits for entry and viewing. Win 3.1 calculator is a binary blob, Win 10 calculator is open source MIT licensed on GitHub https://github.com/Microsoft/calculator
In My IDE is too heavy so I moved to Emacs

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