Guide
PPI Calculator for 4K Monitor: What Sharpness You Actually Get
A 4K resolution does not always mean a sharp display. What matters is pixel density (PPI), which changes with monitor size. This guide helps artists and designers pick the right 4K display for detail-critical work.
Quick formula
PPI = sqrt(width² + height²) / diagonal size
For 4K UHD: width = 3840, height = 2160
4K PPI by monitor size
| Monitor Size | Approx PPI | Best For |
|---|---|---|
| 24 inch | 183 PPI | Fine-detail illustration, UI precision |
| 27 inch | 163 PPI | Balanced choice for most creators |
| 32 inch | 138 PPI | Video editing, large workspace layouts |
| 43 inch | 102 PPI | Multitasking, less ideal for sharp typography |
What PPI should artists target?
- 150+ PPI for crisp UI and brush details at close viewing distance.
- 130-160 PPI is a strong productivity range for mixed design tasks.
- Below 110 PPI often looks soft for text-heavy design workflows.
Compare your screen using the DPI/PPI calculator and pair it with the resolution scale calculator for export planning.