Thank you to all of you who have supported us over the years.

While we still feel Geo-Calc is a useful app (and 3-2-1), both desperately need rebuilding, updating and improving for the latest OS's.

We're leaving the original site and app download links active for the time being - but your milage running them may vary.
Hopefully one day we will have the time & resources to continue development under the BaldGeeks banner.

Thanks again, the BaldGeeks.

Geometry Calculator for OS X

What is Geo-Calc?
Geo-Calc is a geometry calculator. You can use it to work out all the measurements (area, perimeter, sides, angles, etc) of 2D and 3D shapes. The shapes include Ellipses, Rectangles, Triangles, Trapeziums, Parallelograms, Polygons, Prisms, Cylinders, Cones, Pyramids and Spheres.

Previous calculations are recorded in a drawer and a scaled rendering of the shape is shown in another.

Geo-Calc is used by teachers, students, educational institutions, engineers, architects, builders, carpenters, town planners, rocket scientists and mathematicians…

(3 MB - QuickTime 7 Required)

Download Geo-Calc, open the disk image, and drag the Geo-Calc application to your Applications folder.

How to use Geo-Calc
Use the upper tabs to switch between two dimensional and three dimensional figures, and the lower tabs to choose a specific shape.

The information drawer gives general information about the selected shape, as well as the minimum values needed to calculate it.

To perform a calculation enter some values into the fields and click the Calculate button, or hit Return. Your entered values will have a blue background with the results in the remaining fields.

If your entered values do not describe a valid geometrical figure, appropriate messages will pop up which point out the specific problem and suggest which values to change to make it a valid shape.

After calculating, if you only want to change your previously entered values you can perform a 'partial clear' by clicking the Clear button with the Shift key held down (or hitting Shift-Enter).

Tape drawer
The tape drawer lets you review a paper tape of previous calculations for each shape. A Clear button at the bottom of the drawer clears the paper tape for the current shape.

Previous calculations are only displayed and saved if the drawer is open when performing the calculations.

Graphics drawer
The graphics drawer shows a rendering of the calculated shape drawn to scale. For 3D shapes, additional controls enable the grid planes and axes to be toggled on/off.

The shape can be rotated by dragging with the mouse. To auto-rotate do a 'click-drag-release'.

In Mac OS X 10.4 and above Geo-Calc's content is searchable through Spotlight.

Help is available from Geo-Calc's help menu.

What is Geo-Calc?
Introduction movie
How to use Geo-Calc
System Requirements
Version History
Download Geo-Calc
                Version 2.0
                1.31 Mb

Download Geo-Calc.

"A great program for doing geometric calculations and being able to visualize the figures both in 2D and 3D. Very easy to use and 100 percent intuitive." Victor Mihailescu, Apple News Editor, SoftPedia. Read review

MacFormat (Nov 06)
Best of Mac Shareware.

Geo-Calc contains the following localisations:
(Alex Götz)
(Terje Rydland)
If you are interested in helping us with additional languages, please email
System Requirements
Mac OS X 10.3.9 or later

Geo-Calc is a Universal Binary, which means it runs natively on PPC & Intel Macs.
Version History
Universal Binary.
Tape drawer listing previous calculations.
Graphics drawer containing a scaled rendering.
Norwegian localisation.
Spotlight support (for OS X 10.4).
Fixed a bug with incorrect formatting of very small results.
Included option to automatically check for updates at startup.
Minor GUI updates.
Code optimisation and compacting.
German localisation.
Fixed a bug with partial clear under OS X 10.3.
Minor amendments to the info texts.
Info-Drawer width saved in preferences.
Tabs state saved in preferences.
Introduction of partial Clear for easier editing of given values.
Minor bug fixes.
Initial public release.

* Plus tax where applicable

Geo-Calc is provided AS IS, without warranty of any kind, expressed or implied, including without limitation the warranties of merchantability, fitness for a particular purpose and non-infringement. The entire risk as to the quality and performance of Geo-Calc is borne by you. Should Geo-Calc prove defective, you and not baldgeeks.com assume the entire cost of any service and repair. baldgeeks.com is not responsible for any indirect, special, incidental, or consequential damages of any character including, but not limited to, damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses.

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