Screen Size Calculator
Category: EntertainmentCalculate screen dimensions, diagonal size, aspect ratio, and pixel density for monitors, TVs, phones, and other displays.
Screen Size Calculator
Screen Size Calculator: Understand Your Display Better
The Screen Size Calculator helps you quickly figure out a screen’s physical dimensions, aspect ratio, and pixel density based on the inputs you provide. Whether you're choosing a new monitor, checking how your phone display compares to others, or evaluating the sharpness of a screen, this tool makes it simple and visual.
Diagonal Size: \( \text{Diagonal} = \sqrt{ \text{Width}^2 + \text{Height}^2 } \)
Aspect Ratio: \( \text{Aspect Ratio} = \frac{\text{Width}}{\text{Height}} \)
Pixel Density (PPI): \( \text{PPI} = \frac{\text{Diagonal Pixels}}{\text{Diagonal Inches}} \)
Screen Area: \( \text{Area} = \text{Width} \times \text{Height} \)
What You Can Do with This Calculator
- Calculate screen dimensions using diagonal size and aspect ratio
- Find the diagonal by entering width and height
- Determine pixel density (PPI) by adding screen resolution and size
- Compare your screen visually with common monitor and TV sizes
- Switch between inches and centimeters for convenience
How to Use It
The calculator gives you three ways to start:
- From Diagonal: Enter the diagonal size and select an aspect ratio. You’ll get width, height, and more instantly.
- From Dimensions: Input the width and height to calculate diagonal and aspect ratio.
- From Resolution: Add pixel resolution and screen size to calculate pixel density and total pixels.
Once you've filled in the fields, click “Calculate” to see your results. If you want to start fresh, hit “Reset”.
Why It’s Useful
This calculator can help in many real-world scenarios:
- Buying a monitor or TV and want to know the exact screen size?
- Trying to compare a laptop’s display to a tablet?
- Curious if a screen really offers high resolution for its size?
- Looking to compare your display to others in a visual way?
It's like a digital measuring tape for your devices — no need to guess or do the math yourself.
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Frequently Asked Questions
Q: What is the difference between diagonal and width?
A screen’s diagonal is the measurement from one corner to the opposite corner. Width is the horizontal measurement. Diagonal size doesn’t directly tell you the screen’s shape unless you know the aspect ratio.
Q: What does “PPI” mean?
PPI stands for pixels per inch. It shows how sharp a screen is. The higher the PPI, the clearer the image — especially for small text and detailed images.
Q: What is an aspect ratio?
It’s the ratio between a screen’s width and height. A 16:9 screen means for every 16 units wide, it’s 9 units tall — standard for most modern displays.
Q: Can I use this for phones, laptops, or TVs?
Yes. You can use this calculator for any type of screen — from a 6-inch phone to a 55-inch TV.
Q: Is the visual comparison accurate?
The visual display is scaled for your screen, but it accurately shows how different sizes compare in proportion.
Final Tip
If you're shopping for a display or just comparing devices, this calculator makes it easier to understand screen sizes without the guesswork. Try entering a few screen sizes you're familiar with — like your phone or a 24" monitor — and see how they stack up visually.