Dot/inch (DPI)s to Dot/millimeters (dpi to dot/mm)
Free online dot/inch (dpi) to dot/millimeter converter. Type a value, get an instant exact result — plus the formula, a ready-made conversion table, and reverse conversion.
DIGITAL IMAGE RESOLUTION CONVERTER — INSTANT RESULT
Formula: multiply the dot/inch (dpi) value by 0.039370079 — i.e. dot/mm = dpi × 0.039370079
Quick check: 1 dpi = 0.039370079 dot/mm
Quick check: 1 dpi = 0.039370079 dot/mm
Dot/inch (DPI)s to Dot/millimeters conversion table
| Dot/inch (DPI)s (dpi) | Dot/millimeters (dot/mm) |
|---|---|
| 1 dpi | 0.039370079 dot/mm |
| 2 dpi | 0.078740157 dot/mm |
| 3 dpi | 0.11811024 dot/mm |
| 4 dpi | 0.15748031 dot/mm |
| 5 dpi | 0.19685039 dot/mm |
| 6 dpi | 0.23622047 dot/mm |
| 7 dpi | 0.27559055 dot/mm |
| 8 dpi | 0.31496063 dot/mm |
| 9 dpi | 0.35433071 dot/mm |
| 10 dpi | 0.39370079 dot/mm |
| 15 dpi | 0.59055118 dot/mm |
| 20 dpi | 0.78740157 dot/mm |
| 25 dpi | 0.98425197 dot/mm |
| 30 dpi | 1.18110236 dot/mm |
| 40 dpi | 1.57480315 dot/mm |
| 50 dpi | 1.96850394 dot/mm |
| 75 dpi | 2.95275591 dot/mm |
| 100 dpi | 3.93700787 dot/mm |
| 250 dpi | 9.84251969 dot/mm |
| 500 dpi | 19.68503937 dot/mm |
| 1,000 dpi | 39.37007874 dot/mm |
How to convert dot/inch (dpi)s to dot/millimeters
To convert dot/inch (dpi)s to dot/millimeters, multiply the amount in dot/inch (dpi)s by 0.039370079. For example, 10 dpi = 0.39370079 dot/mm. To convert in the other direction, divide by the same factor, or use the ⇄ swap button above.
Convert image resolution between dots per inch (DPI), dots per millimeter and dots per centimeter — print and scanning units.
Frequently asked questions
How many dot/millimeters are in one dot/inch (dpi)?
One dot/inch (dpi) is exactly 0.039370079 dot/millimeters.
How do I convert dpi to dot/mm?
Multiply the dpi value by 0.039370079 to get dot/mm. The converter at the top of this page does this automatically and works in both directions.
How much is 100 dot/inch (dpi)s in dot/millimeters?
100 dot/inch (dpi)s equals 3.93700787 dot/millimeters.