basic calculator
VAT Calculator 2
VAT Calculator - Calculates VAT after entering net or gross amounts at the click of a button more>>
Pretty simple really, but saves time.
Enhancements:
- VAT Change rate now on reverse.
- Suggested by Rich - comment posted on my blog.
Bayesian Calculator 2.0.2
Bayesian Calculator is a distinguished and easy to use tool which calculates positive predictive power, given prevalence and test results. more>>
Bayesian Calculator 2.0.2 is a distinguished and easy to use tool which calculates positive predictive power, given prevalence and test results.
Requirements: Mac OS X 10.2 or higher (Universal Binary)
BMI Calculator 1.5.1
Calculate your body mass index. more>>
Spine Calculator 1.0
Spine Calculator will calculate the spine of a book given the paper thickness and number of pages more>>
Includes presets of several paper thicknesses.
Tested with Mac OS X 10.3.9.
Enhancements:
- changes with version 1.0.
Scope Calculator 2.1
Scope Calculator calculates and compares the magnification, field of view, and exit pupil of up to 7 eyepieces more>>
Also allows easy toggling between the results when used normally, with a Barlow lens, and with a SCT reducer-corrector.
Enhancements:
- Version 2.1: Simplified interface and improved Read Me file.
- Improved handling of improper data entries.
- First Mac Classic version.

PdC Calculator 2.0
PdC Calculator(formerly Dof Calculator) is developed to be a smart tool which provides you with a Depth of Field calculator and camera database. more>>
PdC Calculator 2.0 (formerly Dof Calculator) is developed to be a smart tool which provides you with a Depth of Field calculator and camera database.
Requirements:
- Mac OS X 10.3 or later.
Attack Calculator 1.0
Free random battle Dashboard widget for your Mac more>>
D'ni Calculator 1.0
Dni Calculator is widget appealing to all fans of the Myst, Riven, and Uru games. more>>
D'ni Calculator 1.0 is widget appealing to all fans of the Myst, Riven, and Uru games. You can enter numbers using either Arabic or D'ni numerals, and it includes all basic mathematical operations. For D'ni fans in particular, it also features conversion between degrees and torans (15625 torans is a right angle). The widget is actually a new implementation of Simon Riedl's 1999 calculator, with a new graphic interface.
D?ni Calculator 1.0
D?ni Calculator - Calculator widget for Myst, Riven & Uru fans more>>
You can enter numbers using either Arabic or Dni numerals, and it includes all basic mathematical operations.
For Dni fans in particular, it also features conversion between degrees and torans (15625 torans is a right angle).
The widget is actually a new implementation of Simon Riedls 1999 calculator, with a new graphic interface.
Known limitations: no fractions (rounded off or down as the user specifies) and no keyboard input.
Tape Calculator 0.2
Provides access to a standard adding machine right from your dashboard. more>> Provides access to a standard adding machine right from your dashboard.
Tape Calculator was designed to replace a standard desktop adding machine, allowing 10-key touch number entry. Tape Calculator is perfect for high-speed substraction and adding of numbers and being able to verify totals.
Enhancements
- No longer makes a noise with every keypress.
- Supports copy - pressing [command+c] will copy the contents of the tape to the clipboard.
- Requested features for later versions: Tapes longer than 25 items.
DHB Calculator 1.1.0
Free scientific calculator for your Mac more>>
Major Features:
- Designed for use by software and electronic engineers.
- Shows Decimal, Hexadecimal and Binary in the output window making calculations easier.
- Performs all the basic calculator arithmetic including AND, OR, etc.
- Includes a history log.
Requirements: Macintosh OS X 10.1 or later
<<lessAquarium Calculator 1.0
Aquarium Calculator is a handy widget that will help you calculate fish tank volume, heater and lighting more>>
Image Calculator 1.0
Image Calculator - A widget that calculates the width in mm, the horizontal pixels or the dpi of a digital image more>>
Fill in two fields and Bildrechner calculates the third.
Super calculator 2.0
Super calculator - Calculator that can do regular math and algebra more>>
Completly freeware.
Enhancements:
- Now you can do expontents (^) and percentages (%).
- Positioning of the variable is much more flexible in this version.
- It also has an easy clipboard option.
Alcohol Calculator 3.0b
Alcohol Calculator - Calculates alcohol by temperature and specific gravity more>>
Main features:
- Calculates alcohol by weight and alcohol by volume
- Corrects specific gravity based on temperature
- Both beer and wine themes
- Web based for multi-platform support
- Both Konfabulator and Apple Dashboard widgets available.