Actual 1 inch full#

Your browser should be at its standard/default page scale adjustment.

If you can see any ruler “image” above, it means your browser supports this and you’re good. Most modern browsers now support the canvas element.

Your browser must support the HTML5 canvas element.

JavaScript must be enabled in your browser.

Requirements/Prerequisites To Use The Actual Size Online Rulerīesides the clearly explained calibration requirement discussed above, in order to use this actual size on-screen ruler, the following prerequisites and requirements must be met: So, even if you have an exceptionally wide screen (like a huge smart TV), this ruler extends to fill out the screen and continues to work accurately. One really cool and unique feature of this virtual on-screen ruler is that it has no maximum length! It extends to fill out any screen width. This actual size online ruler works on any device that allows you to browse the web – so you can use it on large screens (PC monitors, laptops, or smart TVs) and mobile devices (smartphones, tablets, phablets, and maybe even e-ink readers).

Use this on-screen/online ruler to measure the size of an object in centimeters or inches when you have no real ruler at hand, or when a real ruler isn’t good enough for some reason (the real ruler might be too short or might not have the exact markings you need). More Information About The Actual Size Online Ruler Just be aware that measurements you make using the default ruler should only be considered as quick and dirty approximations. If, however, you’re not after high accuracy, you can go ahead and work with the default ruler that this page displays on your screen.

Now, when you have selected your display size, this page recalibrates the above ruler and the result is an accurate ruler in its actual size. Technical documentations usually include device screen size (diagonal size) information. Alternatively, if you have the original technical documentation of your device handy, you could refer to it. If you don’t know the value of the diagonal screen size of your device, in most cases you can quickly Google the information by searching with your device’s model name. This is why I strongly recommend that you manually calibrate this ruler using the options provided above.

Actual 1 inch full#

Depending on the class and type of your device, the error in the original screen size value reported by your operating system may vary from a few millimeters to several centimeters (or even up to a full inch). This value is what is used to display this ruler the first time you visit this page. However, as earlier mentioned, your operating system does give us an “educated guess” about the physical screen size. And if the browser doesn’t know the physical screen dimensions, it is not possible for something running inside the browser (in this case JavaScript) to know the physical screen dimensions either. Technically speaking, there is really no way for the operating system running on a device to tell what the physical screen dimensions of the device are and so, there is no way for any program (like a browser) running on that operating system to tell the exact screen dimensions either. The reason for this has to do with browser and operating system constraints. It is merely proposed as an approximate value for consideration. The device size supplied by your browser may not correspond to the real size of your device in many practical cases. Your browser determines and exposes your screen resolution, but there is no way to be very sure about your monitor size (or the screen size of your phone or tablet) if you don’t explicitly select it. In order to display a ruler in its actual size, two details should be known: Why You Should Enter Your Screen Dimensions (Diagonal Screen Size)