Free molecular weight calculator software for mac

VAT Calculator Widget calculates VAT after entering net or gross amounts at the click of a button.
Pretty simple really, but saves time.
Enhancements:
- VAT Change rate now on reverse.
- Suggested by Rich - comment posted on my blog.

With the Media Calculator application one knows the optimal data rate of a video stream, independently of a certain codec, for the medium used feed (as for example DVD, VCD, DSL, etc..).

Image Calculator is a widget that calculates the width in mm, the horizontal pixels or the dpi of a digital image.

Fill in two fields and Bildrechner calculates the third.

Super calculator is a stand alone application writen in AppleScript that can do standard math and algebra. It uses no scripting additions to do its task.
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.

Econ Calculator is a simple to usecalculator having three calculation modes, normal calculator, calculatorwith tape (simulated paper roll) or calculator with tape running in Addingmachine mode.

It allows the user to round from an integer "0"decimal places through to 6 and offers a "Fixed" decimal setting that autorounds to 2 decimal places. The calculator can be "Iconized" to a globalbutton and has many more options of user customization.