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Vertical Virtual Ruler – Accurate Height Measurement Online

Need to measure vertical length on your screen accurately? Our Vertical Virtual Ruler Online is the perfect tool to measure height in pixels, inches, or centimeters – right in your browser. Whether you're a web designer, student, or anyone needing precise measurements, this tool gives you a 1:1 scale vertical ruler that’s easy to use, no installation needed. Simply align it with your screen objects and start measuring!


Pixel per inch :

Show ruler adjuster :

To ensure the accuracy of the measurement, we strongly recommend that you calibrate it before you use it.

How to calibrate the ruler

Take a standard size credit card for comparison, select the option "Standard Credit Card" to show the ruler adjuter, enlarge or reduce the scale until you are sure that the scale of the ruler is the most accurat. Remember to save the setting, so you can use the ruler directly next time. You can use anything for comparison as long as you know its size.