Screen Resolution & PPI Calculator
Accurate calculators with instant results.
What does this tool do?
Comparing monitors or phones? Enter the diagonal size in inches plus the pixel resolution — the calculator instantly shows PPI sharpness, simplified aspect ratio, total megapixels and dot pitch, with a live screen preview.
Key features
- Instant calculation
- Accurate formulas
- Clear result breakdown
- Mobile-friendly inputs
Comparing monitors or phones? Enter the diagonal size in inches plus the pixel resolution — the calculator instantly shows PPI sharpness, simplified aspect ratio, total megapixels and dot pitch, with a live screen preview.
Screen Resolution & PPI Calculator
How sharp is that display? Get PPI, aspect ratio and megapixels instantly.
How to Use
- Enter the diagonal screen size in inches.
- Enter the horizontal and vertical pixel resolution.
- Read PPI, aspect ratio, megapixels and dot pitch instantly.
Core Features
- 100% client-side: every calculation happens in your browser, nothing is uploaded or stored on any server.
- Free forever: no accounts, no paywalls, no usage limits.
- Instant results: values update live as you type, with zero waiting.
- Private by design: your numbers never leave your device.
Frequently Asked Questions
What is PPI and why does it matter?
Pixels Per Inch measures display sharpness. Higher PPI means crisper text and images — phones are often 400+, laptops around 140-220, TVs lower because you sit farther away.
What is dot pitch?
The physical distance between pixel centers in millimeters. Smaller dot pitch means finer detail — it is simply 25.4 divided by PPI.
How to Use Screen Resolution & PPI Calculator
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