1st Calculator

Product Review: 1st Calculator


1st Calculator is a versatile expression calculator and unit converter that offers a range of features to make mathematical calculations and conversions easier. With a fully customizable interface, keyboard shortcuts, and a variety of functions, this calculator is ideal for both professionals and students.


  • Fully customizable interface with skins for personalization
  • Support for all arithmetic operations and more than 20 functions
  • Editable lists of constants and unit conversions for easy access
  • Recalling previously used expressions for quick reference
  • Five result formats with changeable precision for different needs
  • Automatic clipboard copy/paste functionality
  • Minimizes to the system tray for convenience

Who Should Use It

1st Calculator is suitable for a wide range of users, including:

  • Students who need a reliable calculator for their math and science classes
  • Professionals who require a tool for accurate calculations and unit conversions
  • Engineers, scientists, and researchers who work with complex calculations on a regular basis
  • Anyone looking for a user-friendly calculator with advanced features

Overall, 1st Calculator is a handy and efficient tool that can simplify your mathematical tasks and enhance your productivity. Whether you are a student, professional, or hobbyist, this calculator has the features you need to get the job done.

System tray | Unit conversions | Mathematical calculations | Customizable interface | Productivity | Professionals | Constants | Product Review | Scientists | Efficient tool | Arithmetic operations | Functions | Engineers | Students | Calculator | Clipboard | Researchers | User-friendly | Advanced features | Unit Converter | Keyboard shortcuts

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