Spine width for a 100-page 5.5×8.5 inch KDP paperback
Exact spine width for a 100-page 5.5×8.5 inch KDP paperback — 0.225 in on white paper, 0.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
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5.5×8.5 Inch Trim
Expert articles on KDP formatting, self-publishing, and book design for UK authors. 8 guides and counting.
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KDP Formatting
8 articlesSpine width for a 150-page 5.5×8.5 inch KDP paperback
Exact spine width for a 150-page 5.5×8.5 inch KDP paperback — 0.338 in on white paper, 0.375 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 200-page 5.5×8.5 inch KDP paperback
Exact spine width for a 200-page 5.5×8.5 inch KDP paperback — 0.450 in on white paper, 0.500 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 250-page 5.5×8.5 inch KDP paperback
Exact spine width for a 250-page 5.5×8.5 inch KDP paperback — 0.563 in on white paper, 0.625 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 300-page 5.5×8.5 inch KDP paperback
Exact spine width for a 300-page 5.5×8.5 inch KDP paperback — 0.676 in on white paper, 0.750 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 400-page 5.5×8.5 inch KDP paperback
Exact spine width for a 400-page 5.5×8.5 inch KDP paperback — 0.901 in on white paper, 1.000 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 50-page 5.5×8.5 inch KDP paperback
Exact spine width for a 50-page 5.5×8.5 inch KDP paperback — 0.113 in on white paper, 0.125 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 500-page 5.5×8.5 inch KDP paperback
Exact spine width for a 500-page 5.5×8.5 inch KDP paperback — 1.126 in on white paper, 1.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Tools & Software
8 articlesSpine width for a 100-page 5.5×8.5 inch KDP paperback
Exact spine width for a 100-page 5.5×8.5 inch KDP paperback — 0.225 in on white paper, 0.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 150-page 5.5×8.5 inch KDP paperback
Exact spine width for a 150-page 5.5×8.5 inch KDP paperback — 0.338 in on white paper, 0.375 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 200-page 5.5×8.5 inch KDP paperback
Exact spine width for a 200-page 5.5×8.5 inch KDP paperback — 0.450 in on white paper, 0.500 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 250-page 5.5×8.5 inch KDP paperback
Exact spine width for a 250-page 5.5×8.5 inch KDP paperback — 0.563 in on white paper, 0.625 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 300-page 5.5×8.5 inch KDP paperback
Exact spine width for a 300-page 5.5×8.5 inch KDP paperback — 0.676 in on white paper, 0.750 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 400-page 5.5×8.5 inch KDP paperback
Exact spine width for a 400-page 5.5×8.5 inch KDP paperback — 0.901 in on white paper, 1.000 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 50-page 5.5×8.5 inch KDP paperback
Exact spine width for a 50-page 5.5×8.5 inch KDP paperback — 0.113 in on white paper, 0.125 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.
Spine width for a 500-page 5.5×8.5 inch KDP paperback
Exact spine width for a 500-page 5.5×8.5 inch KDP paperback — 1.126 in on white paper, 1.250 in on cream. Full cover-wrap dimensions and the KDP spine-width formula.