Name: KoalaCalc
Rating: 4.4 (31 reviews)

KoalaCalc overview

KoalaCalc is a free multi-purpose calculator for Mac OS X. In its compacted state, it looks similar to the standard calculator that comes with Mac OS X. However, simply click the 'advanced features' box and KoalaCalc comes to life to become one of the most advanced scientific, conversion, statistical and expression calculators available.

The list of features includes:

Numerous mathematical functions including trig and log functions plus 10 individual memory banks
Conversion to and from dozens of units (inches to millimeters, pounds to kilograms, etc.)
Basic statistical calculations on up to 10 data sets including t-tests and analysis of variance (ANOVA)
Built-in tape recorder (contents can be saved, recalled, or printed)
Voice feedback (button pressed and/or computed value can be read aloud)
Built-in expression calculator which supports brackets and the proper order of operations
Probability calculator computes exact p value based on the F distribution, with or without epsilon correction (this unique feature is useful for statistical calculations)
Constants menu which can be customized
No silly 2nd function button - all features have their own button
Most buttons including advanced scientific functions include keyboard shortcuts - a real time saver
Help on how to use each button is provided by simply leaving the mouse cursor over a button for a few seconds
User can set various preferences including
Advanced features can be hidden to reduce the size of the footprint

What’s new in version 4.5.3

Updated on Sep 26 2012

Version 4.5.3:

Note: This is a 32-bit application and it will not work on macOS Catalina or later

Release notes were unavailable when this listing was updated.

Information

License

Free

Size

12.4 MB

Developer’s website

https://www.macropodsoftware.com/koalacalc/

Downloads

50595

App requirements

Intel 32
PPC 32
Mac OS X 10.4.0 or later

0.0

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hannahkominsky67

May 27 2021

4.5.3

3.0

Version: 4.5.3

Wow, Voice feedback- amazing feature, especially for me and my cowokers)

freddofoxxy

May 19 2021

4.0

Oh, I don't waste my time when I do some stats or make some audits. Perfect, just THANKS))))))

RoyPDX

May 6 2015

The currency converter doesn't include the Russian Ruble. I understand if they can't include every country, but Russia is probably more important than many that are included.

Richard-Ripley

Mar 7 2014

5.0

Seems the KoalaCalc site is back up and running! Yes!

Farrow

Dec 22 2013

3.5

What has happened here? A great piece of software that was extremely useful, quick and easy to use, especially for currency conversions seems to have bitten the dust (my currency conversions no longer work!). As the last reviewer points out, the web site seems to have completely vanished off the planet. SHAME!

Herbert-Kroemer

Dec 20 2013

Nice, up to a point. But unfortunately, the "convert" feature of this calculator has a bad bug: I tried to do a calculation where a non-metric quantity first had to be converted to metric units, with some subsequent calculations to be performed on the metric values resulting from this conversion. The calculator contained the required conversion routine (electron volts to joules), but the final result after the subsequent calculation was obvious garbage, off by a huge factor. Trying to track down this bug, I found that all unit conversions, while showing on the display, are totally ignored in all subsequent operations; the program always uses the original pre-conversion values. This makes the program unusable for me. Yuck!

Dec 8 2013

Has this app gone the way of all flesh? The link to the developer's site seems to be broken.

johnny-sizzlechest

Jan 29 2013

This is a nice little freeware calc, I especially like the fraction and expression calculators. But why was the window 'minimize' function removed from the program? It's a minor quibble, but frustrating nonetheless.

haridsv

Aug 31 2012

4.5.2

Version: 4.5.2

Why does a simple app needs to be a installer package and require my admin privileges to install? Why can't I just copy the .app to where ever I want? I would like to know what the installer actually does.

Drscott

Jul 7 2011

4.4

Version: 4.4

I downloaded KoalaCalc out of curiosity to see the fractions feature. It installed itself as root! All of my attempts to change its owner and group (via the Finder, Path Finder and the terminal) have failed since it immediately switches back to root, so I can't even move it to the trash. There is absolutely no reason why a calculator program should be installing itself this way.

Jazzyguy

Jul 6 2011

I d/l the zip file here and got operation not permitted. I then went to the Developer's web site and got the same results.

Espiridion

It's great to see this gem updated. I used it regularly many years ago. I eventually replaced it with PCalc, but KoalaCalc was quite good and free (open to donations). Nice to see it's still being supported.

Trashie

Feb 16 2011

4.3.1

Version: 4.3.1

Awesome! The fraction part is really well designed. That saves the hassle of paper. A graphic artist needs to make them a new icon though! Must be someone who will donate one that uses this.

Guest

Nov 6 2007

THE BEST CALCULATOR Thank you very much, developer, for this gift.

Josh-G

Dec 27 2005

A Great Product. Fantastic for those who like Apple's own calculator but need that extra "Oomph". Highly Recommended.

Aug 25 2005

2.8

Last I heard, 6+14÷5-3=5.8, but in Simple mode, KoalaCalc told me that 6+14÷5-3=1! Hmm!

Aug 3 2005

4.3

Version: 4.3

It's nice again to have an update, but could you please tell us what's new in this version? Thank you ...

Jul 31 2005

Please don't distribute it as a StuffIt archive. With Tiger ommitting expander it's become a pain.

Jul 18 2005

4.2.1

Version: 4.2.1

This free calc has mucho more functions than Apple's! Great ... Just one prob: I left it on my second monitor, but now I only have one monitor attached to my G4 so that I cannot see or grab the calc and tape windows anymore ... Can you help?

Apr 14 2005

Well.. this doesnt do much that the Mac OS X system calculator doesnt do the same, or better. And the System calculator has more features too. But as this is free who can complain.

KoalaCalc