Bullverter Converter


Bullverter converts units of Length, Area, Volume, Mass, Energy, and Temperature.

Following units are available for each category:

Other Features:


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How to use

When you first run the app, it will display a licence agreement. Just tap 'OK'. This is a standard licence agreement that limits liability.

To start using the app, tap 'menu' and pick one of the categories.

Tap any of the boxes and type in a value. As you type, all other boxes are updated automatically. Press Back key to close the keypad.

You can also tap the TitleBar to move to the next category.

There are four buttons at the top, two on each side of the Category Name.

Privacy Policy

This app does not share personal information with third parties nor do we store any information about your visit to this site other than to analyze and optimize your content and reading experience through the use of cookies. This privacy policy is subject to change without notice and was last updated on Nov 16, 2012.

Tested On

Bullverter has been tested on the following devices:

Test Cases

First Run

When you first run the app, it will display the Licence Agreement. Tap on the Back button or Cancel Button. The app will close. Tap on 'OK'. Home screen will be displayed.

When you run the app again, the Licence Agreement will NOT be displayed.


Tap on Menu, and choose Length.

Tap on one of the text boxes. Keypad will be displayed. Negative numbers are disabled. You can enter only digits and a decimal point.

Tap on Menu, and choose Temperature.

Tap on Kelvin. Check that negative numbers are NOT allowed.

Tap on Centigrade/Fahrenheit and check that negative numbers are allowed. Lowest possible temperature is -273/-459.4/0. You can type in a value less than -273/-459.4, but the converted values will be limited to -273/-459.4/0.


Change the orientation of the device. The screen should maintain the values in the new orientation.

Change the orientation again. The screen should be repainted with the same values.


Tap on P button, and set the number of decimal points, and then the Back button.

Now when you type in a number in one of the boxes, the number of decimal digits after the decimal point will match to what you set in the previous step.

Other Buttons

Tap on V Button. Unit names will be displayed in long form. Tap again. They will be displayed in short form.

Tap on ? Button. A window will pop up displaying Help screen. Tap on OK.

Tap on C Button. All text boxes will be cleared.


Tap on the title. The next category will be displayed.