How to Convert PPMM to DPI
To convert ppmm to dpi, multiply the value by 25.4.
The Formula
DPI = PPMM × 25.4
Key Fact
1 pixels per millimeter = 25.4 dpi
Tip: To convert dpi back to ppmm, divide by 25.4.
PPMM to DPI
Convert ppmm (PPMM) to dpi (DPI) with formulas, examples, and conversion tables.
PPMM
DPI
1 PPMM = 25.4 DPI
Full precision:25.4 DPI
Step-by-Step Solution
To convert 1 ppmm to dpi, we multiply by 25.4 because one pixels per millimeter equals exactly 25.4 dpi.
1 pixels per millimeter = 25.4 dpi
Since each pixels per millimeter contains 25.4 dpi, we multiply our value by this factor:
1 × 25.4 = 25.4 dpi
So 1 ppmm = 25.4 dpi.
Quick check: 25.4 ÷ 25.4 = 1 ppmm
Example Conversions
Example 1: 1 PPMM = 25.4 DPI
1 × 25.4 = 25.4
1 × 25.4 = 25.4
Example 2: 5 PPMM = 127 DPI
5 × 25.4 = 127
5 × 25.4 = 127
Example 3: 10 PPMM = 254 DPI
10 × 25.4 = 254
10 × 25.4 = 254
PPMM to DPI Table
| PPMM | DPI |
|---|---|
| 1 PPMM | 25.4 DPI |
| 2 PPMM | 50.8 DPI |
| 5 PPMM | 127 DPI |
| 10 PPMM | 254 DPI |
| 20 PPMM | 508 DPI |
| 25 PPMM | 635 DPI |
| 50 PPMM | 1270 DPI |
| 100 PPMM | 2540 DPI |
| 250 PPMM | 6350 DPI |
| 500 PPMM | 12700 DPI |
| 1000 PPMM | 25400 DPI |
1 Pixels per Millimeter in Other Units
| Unit | 1 PPMM = |
|---|---|
| PPMM to PPI | 25.4 PPI |
| PPMM to DPI | 25.4 DPI |
| PPMM to PPCM | 10 PPCM |
| PPMM to DPCM | 10 DPCM |