OS / Platform:
Windows 2000,
Windows NT,
Windows XP,
Limitations:
Can compute only radius less than 100 pixels
Editors Note
You can easily measure the radius, circumference and area of any polygonal or circular shape on your screen. It supports hotkeys to calculate exact measurement. Provides you to measure 37 different polygons which includes pentagon, square and triangle. It enables you to calculate the measurement in pixels, inches or choose your own units. View the compass measurement by adjusting the screen transparency.