Folio Calculator
Sheet layout for different folio sizes (quarto, octavo, etc.).
Inputs
Results
Trimmed page height (mm)
142.5
Trimmed page width (mm)
207
Page height (inches)5.61
Page width (inches)8.15
Pages per sheet16
Sheets needed8
Untrimmed leaf height (mm)148.5
Untrimmed leaf width (mm)210
Waste pages0
Aspect Ratio0.69%
How to Use This Calculator
- Enter the height and width of the unfolded parent sheet in millimeters (e.g., 594 × 420 mm for A2).
- Select the fold type: folio (4 pages), quarto (8), octavo (16), duodecimo (24), or sextodecimo (32).
- Enter the total number of pages needed in the finished book.
- Read the trimmed page height and width in mm and inches — these are the final leaf dimensions after folding and trimming.
- Note the number of parent sheets needed and any waste pages added to complete the last signature.
- Use the pages per sheet output to verify your imposition layout before printing.
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