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Free Tool

Bleed & Gutter Calculator for Canva → KDP

A quick way to get your Canva custom size and a starting point for margins. For exact KDP gutter tables by page count, use the guides.

KDP commonly uses 0.125" bleed on each side. This tool adds it to your Canva size when “Bleed = Yes”.

Results

Canva custom size
Export reminder
Safe zone starter (outside/top/bottom)
Inside margin (gutter)

Note: This tool intentionally does not output the exact KDP gutter values by page count. It gives a safe planning starter so you can set up your Canva file. For the exact gutter table for your trim size + page count, grab the Bundle.

Free vs Bundle (what you get)

Free Calculator

  • Correct Canva page size (with / without bleed)
  • Export reminder (PDF Print settings)
  • Safe-zone starter guidance (helps avoid edge issues)
  • Explains the common causes of KDP upload errors

Paid Bundle (recommended)

  • Exact gutter values by page count for each supported trim size
  • Exact margin guides (inside / outside / top / bottom) in inches + cm
  • Step-by-step Canva setup walkthrough (pass-first-time workflow)
  • Pre-upload checklist + edge cases (thin borders, full-bleed, etc.)
Get the Bundle →
Not sure which guide you need? Get the Bundle →

If you’re not sure whether you need bleed, start with the calculator, then use the Bundle for the exact settings that match your page count.

Common mistakes this prevents

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“Dimensions Incorrect”

Usually happens when bleed was required but not included in the PDF size.

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“Insufficient Gutter”

Inside margin too small for your page count — text drifts into the binding.

❌

Content outside margins

Elements too close to trim; safe zone not respected.

Get Exact Gutter Tables →