KDP Calculators
KDP Interior Margin Calculator
Get exact KDP gutter (inside) and outside margins for your page count. Free.
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KDP Interior Margin Calculator
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Inside 0.5″ / Outside 0.25″for 200 pages, no bleed
Inside (gutter) margin0.500″ (12.7 mm)
Outside / top / bottom0.250″ (6.3 mm)
KDP page-count tier151–300
Gutter is the inside margin that gets eaten by binding. Larger page counts need a wider gutter so text isn't lost in the spine.
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