

Instead of just using your screen size, it actually asks you for your screens PPI or pixels per inch. Probably the most complicated to use but potentially the most accurate, this online ruler calibrates itself differently. Ginifab Online Ruler The most accurate online ruler Photo by Ginifab It’s unique feature being that you can actually drag and rotate the ruler around the webpage and can easily toggle between centimeters or inches.

One of the more unique online rulers on this list, this one comes with the same calibration systems as the previous items.
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FreeOnlineRuler Ruler Photo by Free Online Ruler By using the $100 bill, which is 2.61 inches wide, you can use the bill as a reference to determine the accuracy of the ruler itself. Similar to most online rulers on this list, this one asks you to also use the width of a $100 bill as a calibration point. This website also has a mobile version so using your phone is also an option! 7.

To be able to measure accurately, this web ruler not only asks for your screen size but it also gives you the option to calibrate it using everyday items such as a credit card or bank notes. Piliapp Actual Size Online Ruler Actual size of Inch Ruler Photo by online ruler RELATED: Tech Tools To Help Make You More Productive 6. Similar to most items on this list, it uses your screen size to determine its ruler scale. It also comes with the option to have an L-shaped ruler, giving you the ability to measure both length and width simultaneously. This next online ruler offers quick toggles for inches and centimeters. You can adjust the size of whichever item you are comparing so that when the sizes match, it will then display you an actual ruler. Items such as a credit card or a CD-ROM are used as a comparison to its on-screen counterpart to determine which scale to use. Before it displays you an accurate online ruler, it asks you to calibrate it using various items you may have on hand. This online ruler needs a bit of a setup before use. A great way to measure objects when you don’t have a physical ruler on hand. Its website describes itself as a virtual on-screen online ruler and is available in both centimeters and inches. Here’s another basic online ruler similar to the first item on this list. Ruler.onl Online Ruler Photo by Ruler.onl This gives you the convenience of turning your iPhone into a measuring device! With rulers available in both inches and the metric system, who needs an actual ruler when you can use your own phone to measure things? 3. This online ruler is the web browser version of an iPhone app. Ruler.iphonemarks Ruler Photo by Ruler.iphonemarks All you need to do is set your screen size using the slider and the size of the ruler will change based off it. Dubbed as the “real ruler online”, this basic online ruler can meet your needs in a pinch. Starting with the basics, this online ruler uses the size of your screen to determine its scale. Real Ruler Real Ruler – The most accurate online ruler Photo by Real Ruler 11 Online Rulers You Can Use to Measure in a Pinchġ.
