Free Screen Size Calculator
Width, height and pixel density from a diagonal and aspect ratio.
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Inputs
Result
Width
23.53 in (59.8 cm)
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Short answer
Width, height and pixel density from a diagonal and aspect ratio.
What is the Screen Size Calculator?
Width, height and pixel density from a diagonal and aspect ratio.
How does the Screen Size Calculator work?
Enter the inputs above and read the result.
Formula
Variables
w:hAspect ratio
Explanation
The diagonal is split using the Pythagorean relationship of the ratio.
Examples
Applications
Advantages
Limitations
Common mistakes
Tips
Related concepts
The Screen Size Calculator sits inside the Everyday & Utility Calculators hub, in the digital & misc utilities cluster. Security, sleep and other practical tools. Understanding the terms below makes the output easier to interpret and easier to compare against neighbouring measures.
Practical use cases and industry applications
Understanding Screen Size
Width, height and pixel density from a diagonal and aspect ratio. Within everyday & utility calculators, screen size belongs to the digital & misc utilities cluster, where it shares terminology and assumptions with closely related tools.
Learning how screen size is calculated
The diagonal is split using the Pythagorean relationship of the ratio. Working through the variables one at a time — w:h — makes the result reproducible by hand and easier to sanity-check.
Using screen size to make a decision
Because outputs depend on the assumptions you enter, run more than one scenario before committing to a figure.
How screen size compares with related measures
entropy, bit strength, cycle length all describe adjacent aspects of digital & misc utilities. Comparing this calculator's output against those measures — using the related tools listed on this page — prevents a single metric from being read in isolation.
Frequently asked questions
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