Convert : Tiny Windows Application for All Units Conversion

Convert is the one of the first applications that I found out about when I bought my first PC World magazine back in high school. This small tool was on the CD that came with the magazine. Those were Windows XP times and I was really impressed by this little unit conversion utility. I was surprised to find out that Convert still exists and works on all Windows versions from Windows 95 to Windows 10.

Convert is created by a New York based developer Josh Madison. It is a units conversion tool and is only 157 KB in size. This very small application is able to convert units in twenty two different categories – custom, distance, density, energy, flow, force, light, mass, power, pressure, speed, temperature, time, torque, volume, volume-dry, acceleration, amount of substance, angle, area, computer, and concentration.


Convert uses the good old tabbed user interface – each tab is dedicate for a category. You can switch to a tab and find units available under that category. Each tab contains two list boxes – one list if for selecting the source unit and another list if for the destination unit. Underneath these lists are input and output text boxes, where you can enter the value of input unit to find the converted value in the destination unit.

If Convert does not include a unit that you want to use, then you can add that unit and the conversion rule from under the Custom tab. For this you have to open Convert preferences and add the units as well as the multiplication factor for the conversion. These units instantly appear under the Custom tab. In case you are wondering where these custom units are saved on your computer, Convert saves them in the Windows’ registry at HKEY_CURRENT_USER\Software\Joshua F. Madison\Convert\. This also prevents Convert from being called a fully portable application.

You can download Convert from