microsoft/calculator

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

View on GitHub ↗Jump to charts ↓Open shareable report

Summary Information

Updated 51 minutes ago
Added to GitGenius on September 13th, 2026
Created on January 28th, 2019
Open Issues & Pull Requests: 470 (+0)
GitHub issues: Enabled
Number of forks: 5,794
Total Stargazers: 31,049 (+0)
Total Subscribers: 592 (+0)

Repository Insights (GitGenius)

Median issue/PR response: 3.2 days
Mean response time: 53.1 days
90th percentile: 198.8 days
Tracked items: 121

Most active contributors

Sign in to see contributor activity.

How this project is maintained

Around half of the issues opened in the past year never receive a reply. 96% of open issues come from outside the core team, so the backlog reflects real-world use rather than internal planning. Work labelled "Pri: 2" is answered fastest, typically in under an hour, while "Enhancement" waits about 3 days. Only 4% of issues opened in the past year have been closed.

Charts & Analytics

Fetching additional details & charts...

Issue Activity (beta)

Open issues: 122
New in 7 days: 1
Closed in 7 days: 1
Avg open age: 737 days
Stale 30+ days: 113
Stale 90+ days: 104

Recent activity

Opened in 7 days: 0
Closed in 7 days: 0
Comments in 7 days: 0
Events in 7 days: 0

Top labels

  • Enhancement (55)
  • Pri: 2 (19)
  • help wanted (9)
  • needs spec (8)
  • Bug (5)
  • triage needed (5)
  • Area: User Experience (4)
  • Area: World-Readiness (3)

Detailed Description

Calculator is a Windows desktop application that provides standard, scientific, and programmer calculator functionality alongside unit and currency conversion tools.

The tool addresses the need for a capable calculator built into Windows. It handles basic arithmetic with infinite precision so calculations never lose accuracy, supports scientific operations with proper order of operations evaluation, and includes programmer-focused features like base conversion. The application also offers date calculations to find differences between dates or add and subtract time periods, maintains calculation history and memory, and performs currency conversion using live data.

Calculator is suitable for anyone using Windows who needs reliable calculation capabilities beyond basic operations. The scientific mode serves students and professionals requiring advanced mathematical functions, while the programmer mode targets developers working with different number bases. The date calculation feature addresses scheduling and time-span computation tasks. Since this ships pre-installed with Windows, adoption is automatic for Windows users, though the source code is available for those interested in building from source or contributing improvements.

The project maintains an active roadmap documenting planned features and release schedules. The team actively encourages community contributions through documented guidelines and welcomes both GitHub issues and feedback submitted through the Windows Feedback Hub. Development occurs in the open with the source code available for inspection and modification.