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Pixels Per Inch Calculator
Calculate PPI from screen resolution and diagonal size.
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Calculate PPI from screen resolution and diagonal size.
Pixels Per Inch Estimator
Enter your numbers below for an instant estimate.
0
π‘ Tip: Higher PPI means sharper text, but the interface may need scaling.
How It Works
Key concepts behind this calculator
1
Enter Values
Fill in each field with your own numbers.
2
Calculate
Results update as you change the inputs.
3
Review
Read the breakdown and the explanation.
4
Adjust
Change values to compare scenarios.
Quick Reference Guide
Pixels Quick Guide
Typical values for reference.
| Device | Resolution | Size | PPI |
|---|---|---|---|
| Laptop | 1920×1080 | 15.6 in | 141 |
| Phone | 2400×1080 | 6.5 in | 405 |
| Monitor | 2560×1440 | 27 in | 109 |
| 4K TV | 3840×2160 | 55 in | 80 |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
Pixels Per Inch Calculator FAQ
Answers to common questions about this calculator.
Pixels per inch of screen.
Diagonal pixels divided by diagonal inches.
Roughly 220 PPI or more at laptop distance.
Not exactly, DPI is for printing.