JGMsmart.UC is an easy-to-use converter for physical units. 16 dimensions and about 220 units are installed.

When a specific conversion is missing, it can be added with a built-in editor easily.

For calculating the conversions a build-in expression parser is used. Thereby it is possible to realize complex conversions.

Unused units or quantities can easily be hidden so that they no longer appear in the selection fields. Frequently used conversions can be organized into favorites.


- 16 quantities included (length, area, volume, speed, energy, pressure, data storage ...)

- over 260 units included

- expandable with built-in editor

- built-in expression parser (operators +, -, *, /, ^) (functions: sin, cos, tan, sqrt, log)

- order of appearance in the selection boxes is configurable by drag and drop

- hiding of unused units or quantities

- often used units in favorites organizable

- copy of the values ​​in the pasteboard configurable (only result, input and result, with or without units)

- copy automatically or manually to the pasteboard

- Conversion window with configurable background

- Transparency of windows customizable


© 2014 Marko Reinert

Welcome to the JGMsmart.UC Online Manual

JGMsmart.UC is based on a database containing all required data. There are stored dimesions, systems and units.

Favorites you defined are also stored in database. Therefore you must store the database when you change the favorite state of an unit or set an unit invisible. Normally this is done automatically. You can set this behavior in preferences.

If there are problems with the database, it can be reset to the default. This is available in version V1.1.0.



JGMsmart.UC and a simplified version - JGMsmart.UCbasic - are available in Appstore.

I decided to publish only one manual for both apps. The descriptions apply to both apps.

At the appropriate points shows the symbol that this function is only available in JGMsmart.UC.

Should be a function only available in JGMsmart.UCbasic, this symbol is shown.

Also there are descriptions  about functions only available in version V1.0.0. There are hints at this points.