A5 Paper Size in mm and Inches
A5 = 148 x 210 mm (5.83 x 8.27 in) under ISO 216, exactly half of A4. Common for notebooks and planners.
Open the interactive Standards & Sizes tool →Key facts
| Millimeters | 148 x 210 mm |
|---|---|
| Inches | 5.83 x 8.27 in |
| Standard | ISO 216, A-series |
| Relation | Half of A4 |
| Typical use | Notebooks, planners, booklets |
Frequently asked questions
What size is A5 in cm?
A5 is 14.8 x 21.0 cm (148 x 210 mm), or 5.83 x 8.27 inches.
Is A5 half of A4?
Yes. Folding A4 (210 x 297 mm) in half gives A5 (148 x 210 mm).
Related pages
A5 Paper Size is part of Standards & Sizes on GOAT Lab — a free reference you can use without signing up, and it works offline. Open the tool above for any custom value.
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