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Print size with bleed calculator

Add equal bleed around a trim rectangle and estimate raster pixel dimensions.

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Your result

Document width with bleed216mm
Document height with bleed303mm
Raster width rounded up2,552px
Raster height rounded up3,579px

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How to calculate

Print size with bleedPrint size with bleed1InputsTrim width (mm) ·Trim height (mm) ·Bleed on each edge(mm) · Rasterresolution (ppi)2MethodDocument width withbleed =width+2*bleed mm;Document height withbleed =…3Result216 mm
Print size with bleedA 3 mm bleed adds 6 mm to both total width and height. Convert millimetres to inches using exactly 25.4 before multiplying by PPI. Concept diagram; not to scale.Print size with bleed1InputsTrim width (mm) · Trim height(mm) · Bleed on each edge (mm)…2MethodDocument width with bleed =width+2*bleed mm; Document…3Result216 mmMyCalCute.com
A 3 mm bleed adds 6 mm to both total width and height. Convert millimetres to inches using exactly 25.4 before multiplying by PPI. Concept diagram; not to scale.

Add equal bleed around a trim rectangle and estimate raster pixel dimensions.

Document width with bleed = width+2*bleed mm
Document height with bleed = height+2*bleed mm
Raster width rounded up = ceil((width+2*bleed)/25.4*ppi) px
Raster height rounded up = ceil((height+2*bleed)/25.4*ppi) px

Worked example

  • Trim width (mm): 210
  • Trim height (mm): 297
  • Bleed on each edge (mm): 3
  • Raster resolution (ppi): 300
  • Document width with bleed: 216 mm
  • Document height with bleed: 303 mm
  • Raster width rounded up: 2,552 px
  • Raster height rounded up: 3,579 px

Assumptions and limits

Bleed is added to every edge; confirm the printer’s actual specification. Pixel estimates exclude crop marks and safe-area margins. PPI does not guarantee print quality.

Results are rounded for display; calculations use unrounded values. Read our calculation methodology.

Understanding the result

Add equal bleed around a trim rectangle and estimate raster pixel dimensions. A 3 mm bleed adds 6 mm to both total width and height. Convert millimetres to inches using exactly 25.4 before multiplying by PPI.

When this tool is useful

A 3 mm bleed adds 6 mm to both total width and height. Convert millimetres to inches using exactly 25.4 before multiplying by PPI.

Understanding your inputs

InputExample
Trim width (mm) width210
Trim height (mm) height297
Bleed on each edge (mm) bleed3
Raster resolution (ppi) ppi300

Frequently asked questions

What does this estimate leave out?

Bleed is added to every edge; confirm the printer’s actual specification. Pixel estimates exclude crop marks and safe-area margins. PPI does not guarantee print quality.

How do I check the example?

Use the stated units and the formula below. Keep full precision until the final answer; change one input at a time to see its effect.

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