On this site, you get two rulers that can measure the amount of pixels (dots) on the web,
- A horizontal and a vertical ruler.
This type of rulers may be useful when measuring the distance between various design elements on websites, measure ad sizes, or measure images, etcetera.
- First open a "new window" in your browser and preferably use these rulers clearly differentiated from the rest of your surfing.
Then varying the browser window so that it suits your purpose.
A "pixel" is a more fixed metric, than, for example, inches or centimeters, then these two metrics depend on how many pixels per inch ("dots per inch") the metrics should contain on the screen.
A "pixel" is usually counted as the smallest dimension of the raster graphics that internet is made up of, and you might use pixel measurement in many different contexts - not least when measuring the resolution on monitors.
It is sometimes shortened as "px".
Properly used, these rulers can be a good help in your daily work out there on the internet!
