ISO A · ISO 216
A5 paper size
A compact ISO format with half the area of A4, widely used for notebooks, flyers, programs, and handouts.
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A5 dimensions in every unit
In portrait orientation, width comes first: 148 mm × 210 mm. Rotate the sheet for landscape orientation and the same measurements reverse.
| Unit | Width | Height |
|---|---|---|
| Millimeters | 148 mm | 210 mm |
| Centimeters | 14.8 cm | 21 cm |
| Inches | 5.83 in | 8.27 in |
| Points | 419.5 pt | 595.3 pt |
Digital artwork
A5 pixel dimensions by DPI
Pixel dimensions depend on output resolution. These values describe the trimmed page only and do not include printer bleed.
| Resolution | Pixel width | Pixel height | Typical use |
|---|---|---|---|
| 72 DPI | 420 px | 595 px | Screen preview |
| 96 DPI | 559 px | 794 px | Screen preview |
| 150 DPI | 874 px | 1,240 px | Draft print |
| 300 DPI | 1,748 px | 2,480 px | Quality print |
| 600 DPI | 3,496 px | 4,961 px | High-detail source |
Proportion & comparison
How A5 relates to nearby sizes
A5 is exactly one step below A4 in the ISO series. It is slightly larger than Half Letter and noticeably larger than A6.
- Portrait ratio
- 1 : 1.4189
- Area
- 0.0311 m²
- Orientation
- 148 × 210 mm
Works well for
Common A5 uses
- Notebooks
- Flyers
- Event programs
- Invitations
Check before using
Where it can go wrong
- Long reports
- US Half Letter inserts without resizing
- Large charts or dense tables
Regional & printer note
Will a printer recognize A5?
Common wherever ISO sizes are used and broadly supported by print shops, though not every home printer has an A5 tray preset.
Always match the document size, print-driver size, paper tray, and physical sheet. A driver can silently scale a page even when the preview looks correct.
Measurement source
Checked against the defining standard
Paper Size Lab converts the stored millimeter measurements mathematically; it does not round-trip between units. The underlying sheet family is referenced to the standards organization below.
Read ISO 216:2007Questions people ask
A5 paper FAQ
What are the dimensions of A5 paper?
A5 measures 148 × 210 millimeters, 14.8 × 21 centimeters, or 5.83 × 8.27 inches in portrait orientation.
How many pixels is A5 at 300 DPI?
A5 is 1748 × 2480 pixels at 300 DPI before adding bleed.
Is A5 the same as another paper size?
A5 is exactly one step below A4 in the ISO series. It is slightly larger than Half Letter and noticeably larger than A6.
What is A5 commonly used for?
A5 is commonly used for notebooks, flyers, event programs, invitations. Printer, postal, and finishing requirements still vary.