Print Resolution Converter
Convert between DPI, PPI, dots per cm, and lines per inch for printing and scanning.
Type in any field — the others update instantly.
Print resolution measures how many dots or pixels fit in a unit of length.
Key terms:
- DPI (dots per inch) — printer output resolution
- PPI (pixels per inch) — screen/image resolution
- DPCM (dots per cm) — metric equivalent
- LPI (lines per inch) — halftone screen frequency
Conversions:
- 1 DPI = 0.3937 dots per cm (1 / 2.54)
- 1 dot per cm = 2.54 DPI
- LPI ≈ DPI / 2 (general rule for halftone printing)
Common print resolutions:
| Use Case | DPI/PPI | Dots/cm |
|---|---|---|
| Screen display | 72–96 PPI | 28–38 |
| Web images | 72 PPI | 28 |
| Draft print | 150 DPI | 59 |
| Standard print | 300 DPI | 118 |
| High-quality print | 600 DPI | 236 |
| Professional photo | 1200 DPI | 472 |
LPI for common printing:
| Print Type | LPI | Required DPI |
|---|---|---|
| Newspaper | 85 LPI | 170 DPI |
| Magazine | 133–150 LPI | 266–300 DPI |
| Fine art book | 175–200 LPI | 350–400 DPI |