Free Tool
DPI & Print Size Calculator
Convert between mm and pixels, compute DPI, and include bleed. All values update instantly.
mm → Pixels
mm
mm
dpi
mm bleed
1181 × 591 px
with bleed: 1252 × 661 px
bleed per side: 35 px
Pixels → mm
px
px
dpi
Enter values
Calculate DPI
mm
px
Enter values
Visual Preview
The colored area represents the bleed. The inner area is the final trim size.
100 × 50 mm
with bleed: 106 × 56 mm
Formulas
- →mm to px: px = mm ÷ 25.4 × dpi
- →px to mm: mm = px ÷ dpi × 25.4
- →Bleed: adds to all four sides (width + 2×bleed)
Your calculation
100 × 50 mm at 300 dpi = 1181 × 591 px
with 3 mm bleed = 1252 × 661 px