A Ruler for Windows is a free on-screen pixel ruler for your PC. It provides you your choice between a rich woodgrain ruler, or at the touch of a button, a clear see-through plastic ruler. A Ruler for Windows is fun to learn and very easy to use.

How to find out the size of something on the screen or to take a closer look at it?

Use Perfect Screen Ruler. You will easily find out the size of any item on the screen, for instance, the size of a button or the distance between two points. You will be able to enlarge the image if necessary. It is useful when you measure some small images or when you need to study the enlarged area of the screen in detail.

Univerasl Desktop Ruler allows you to measure not only a straight line distance but any curved distance on the Screen. It allows you to measure quickly and accurately distances, areas and perimeters of figures on the screen. You can determine your own scale and get results in pixels and your units of measurement (feet, inches, meters, ...). It is useful for measuring distance and area on a map, finding area and perimeter in a house project.

A tool to measure distances and angles on the desktop.
The distances can be measured in pixel, cm, inch, points or twips and the angle in radiant or degree.
The ruler is almost transparent so you can have it on the screen, while you are working with the applications below.
Additionally it has a screen loupe and a RGB value window.
You can also draw points, lines, rectangles, polylines, bitmaps and text as temporary objects on the screen.

Five handy graphics tools available at any time from a single mouse click: The pixel ruler, color picker, screen capture, lens, mouse lens, and more.

Measure the distance between two points on your screen, get the exact location and size of an element on a web page, measure in pixels, centimeters or millimeters, both horizontally and vertically? Screen Ruler is your choice.

The Screen Calipers are a unique application that allows designers to measure anything on a computer screen quickly and accurately. The application resembles a real-life Vernier Calipers, making the application so intuitive to use that no instructions are required.

The Screen Calipers can be used with any program where fast and accurate measurements are required including html layout, CAD design, Illustration, allowing measurement in any unit.

Flow Ruler allows you to automatically organize your inbox, eliminate spam, administrate contacts and appointments, and assign tasks through simple Rules which are graphically designed.

Flow Ruler for Outlook is an Add In for MS Outlook® that expands the possibility of configuring and executing rules in your Inbox and in the other folders as well.

This is toolkit that allows you quickly measure anything on your screen, picking the colour value from any pixel of the screen and alter or produce your own colors with the Photoshop-style Color Picker.
This program might be useful for web developers who often face the need to quickly measure the size of an object or the space between objects on the screen up to a pixel, quickly detect the color in an HTML code or alter its HSB, RGB components.

Golden Section is an adjustable transparent design grid for web, graphic, logo and UI designs. It allows you to control and correct the sizes and proportions in your design project using the golden section ratio. Key features: multiple grid modes, including section grid and square grid; adjustable user interface for GUI, web and image design; full controllability over the mouse and keyboard; advanced settings for power users

Golden Section is an adjustable transparent design grid for web, graphic, logo and UI designs. It allows you to control and correct the sizes and proportions in your design project using the golden section ratio. Key features: multiple grid modes, including section grid and square grid; adjustable user interface for GUI, web and image design; full controllability over the mouse and keyboard; advanced settings for power users

Build linear measurement skills, with English and metric rulers. This multimedia program uses the Microsoft Agent Peedy, a parrot character. Printed worksheets and tests can also be generated.

Middle-School (grades 5 through 9) math program written to provide skills in context. Students choose one of two types of problems: ruler fractions (halves, fourths, eighths, sixteenths) or regular fractions. Students must add the given three fractions. Every problem is illustrated with an interactive sketch.

Paraben's LAN Charter is an easy-to-use design program that makes creating network diagrams a snap. Start producing professional drawings instantly using templates, symbols, and clip-art. Export your diagram as an image. Import graphics or your own clip-art. Full zoom, snap grid, ruler bars, and many other standard design tools make it so you don't have to be a professional designer to map out your network.

Super Screen Capture is an all-in-one software for free screen capture. You can capture screen in many ways, including full screen capture, region capture, window capture, scroll capture, directx capture, video screen capture, sound record and etc. You can choose many kinds of output ways, including clipboard, printer, email, editor tool, temp folder, and all popular formats. Super Screen Capture has an easy-to-use and intuitive interface.

Pixel Ruler features horizontal and vertical orientation, dynamic mouse measurement tracking in pixels, cool design.