LAN Speed Test version 4 is official! Click Here for details

Calc4all is a portable Mac/Windows calculator with practical built in features! This project started out because there was no other simple portable calculator out there with all the features that I wanted built in. Calc4all has a simple, easy-to-use interface with so many useful features, you’ll find that it will quickly become your favorite calculator!

Some of Calc4All's Features include...

* Indicates a feature that is available after registering Calc4All

  • Completely portable - No installation needed
  • Can be run from USB Flash drives, etc.
  • Compatible with all Windows versions 7 & up (Win7 'SP1', Win8, Win10, Server 2008, 2012, 2016, & 2019)
  • Compatible with Mac OS X Yosemite (10.10.5) to the latest MacOS Big Sur
  • Updated! Able to share prefs file (Loans, etc.) with other Windows and Mac computers
  • Updated! User Interface received a complete overhaul
  • Updated! Conversions, Tape, many buttons, etc.
  • Updated! Item Count with option to show on tape
  • New! Decimal and thousands separator can be customized for your locale
  • New! Fully High DPI Aware in Windows Vista, 7, & 8 and Mac
  • New! Dark mode compatible in Mac Mojave and above
  • New! Calculator & Text completely re-sizable by dragging the corners
  • New! Unlimited number of Loan Profiles *
  • New! Use the +/= button on laptops as + without having to use shift *
  • Repeat last entry with Ctrl and +,-,/,x
  • Laptop 10 Key Support (M, J, K, L, U, I, O, etc.). No need to turn on NumLock *
  • Decimal, Binary, Hexadecimal, and Octal number systems (with conversion)
  • Printable, savable, and removable colored calculator tape
  • Powerful Loan Calculator with printable Amortization Schedule, multiple compounding options and interactive charts
  • Area & Volume Calculator in metric or standard with ability to mix all units *
  • Over 80 unit conversions in categories - Temperature, Length, Volume, Weight, Area, Speed, Time, Data Storage, & Data Transfer speeds *
  • Floating Point, Fixed & Auto Decimal
  • Tax Button
  • Change Button
  • Memory Button (Memory Bank stored in .prefs file for non-volatile memory)
  • Tool Tips on Buttons
  • Always keep Calc4all on Top of other windows option
  • Automatic Average Calculation, item count, and Running Total in Status Bar
  • Stopwatch with lap times displayed on tape *
  • And much more!



  • Win Windows: Win7 (SP1+), Win8, Win10, Server 2008, 2012, 2016, & 2019 +

Alternate and previous versions

Online Help Documents

Mac Calc4All
(Mac OS X)


  • Mac Mac OS: 10.10.5 or later

Alternate and previous versions

  • None at this time.

Purchase Full License

Calc4All full license gives access to all features.

Cost is just $10.00 per user for business or per family for personal. Same license works on both your Windows and Mac desktops and is valid for all version 4 updates!


# of licenses Cost Order Online
Single $10.00 Add To Cart
5 Pack $45.00 Add To Cart
10 Pack $85.00 Add To Cart
Unlimitted $150.00 Add To Cart

View EULA for Calc4All

All of our apps are completely portable!

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