Digest Book Size
A Digest book measures 5.5 × 8.5 in (140 × 216 mm). It is a compact US trim, exactly half a Letter sheet, used for shorter paperbacks, workbooks, guided journals and literary magazines.
Digest measures 140 millimetres wide and 216 millimetres tall.
Digest Dimensions in Each Unit
Digest is 140 × 216 mm, which is 14.0 × 21.6 cm or 5.51 × 8.5 in.
| Unit | Width | Height | Width × height | Copy |
|---|---|---|---|---|
| Millimetres (mm) | 140 | 216 | 140 × 216 mm | |
| Centimetres (cm) | 14.0 | 21.6 | 14.0 × 21.6 cm | |
| Metres (m) | 0.14 | 0.216 | 0.14 × 0.216 m | |
| Inches (in) | 5.51 | 8.5 | 5.51 × 8.5 in | |
| Feet (ft) | 0.46 | 0.71 | 0.46 × 0.71 ft | |
| Points (pt) | 397 | 612 | 397 × 612 pt | |
| Picas (pc) | 33.1 | 51 | 33.1 × 51 pc | |
| Pixels at 72 DPI | 397 | 612 | 397 × 612 px | |
| Pixels at 150 DPI | 827 | 1276 | 827 × 1276 px | |
| Pixels at 300 DPI | 1654 | 2551 | 1654 × 2551 px | |
| Pixels at 600 DPI | 3307 | 5102 | 3307 × 5102 px |
Pixel counts follow from the resolution: pixels = millimetres ÷ 25.4 × DPI. More on the DPI and pixels page.
Digest Shape and Area
| Aspect ratio | 1 : 1.543 |
|---|---|
| Area | 0.0302 m² · 30,240 mm² |
| Diagonal | 257.4 mm · 10.13 in |
| Closest ISO size | 5.5 by 8.5 in, compact US paperback |
| Governing standard | Book trade convention (UK and US) |
Digest to Scale
Put Digest next to another size in the comparison tool.
Frequently Asked Questions
What size is a Digest book?
Digest is 5.5 by 8.5 inches, or about 140 by 216 mm, which is half a US Letter sheet.
Is Digest the same as A5?
Close. A5 is 148 by 210 mm; Digest is 140 by 216 mm. Digest is narrower and a little taller.
What is Digest used for?
Compact paperbacks, workbooks and guided journals, and small-press magazines.
Book Sizes
✓ Dimensions per Publishing trade size; unit values derived by formula. Reviewed . Editorial Process →