C5 vs A5
C5 is 14 mm wider and 19 mm taller than A5. They are close but not interchangeable: a layout built for one clips or leaves a border on the other.
Compare a Different Pair
C5 and A5, Side by Side
| C5 | A5 | Difference | |
|---|---|---|---|
| Millimetres | 162 × 229 | 148 × 210 | 14 × 19 mm |
| Inches | 6.38 × 9.02 | 5.83 × 8.27 | 0.55 × 0.75 in |
| Centimetres | 16.2 × 22.9 | 14.8 × 21.0 | |
| Area | 0.0371 m², 37,098 mm² | 0.0311 m², 31,080 mm² | 1.19× |
| Aspect ratio | 1 : 1.414 (√2) | 1 : 1.419 (√2) | same |
What Is Lost Printing One on the Other
At 100% scale, both centred, nothing resized. A positive figure on the wider or taller side is cropped; on the other it is a blank margin.
| Axis | Gap | C5 onto A5 | A5 onto C5 |
|---|---|---|---|
| Width | 7 mm (0.28 in) each side | C5 loses it | blank band |
| Height | 9.5 mm (0.37 in) each end | C5 loses it | blank band |
Scale-to-Fit Percentages
The figure to type into a printer or PDF dialog to scale one to fit inside the other:
| A5 to fit C5 | 109% | leaves a thin border on one pair of edges |
|---|---|---|
| C5 to fit A5 | 91% | leaves a thin border on one pair of edges |
The two share the 1 : √2 shape but are not one halving apart, so a fit-to-page scale still leaves a small border.
Beyond the Measurements
Envelopes: C5 has no standard fitted envelope; A5 fits C5, C6.
Frequently Asked Questions
Is C5 bigger than A5?
C5 is bigger. It is 162 × 229 mm against 148 × 210 mm for A5, about 1.19 times the area.
What is the difference between C5 and A5?
C5 is 14 mm wider and 19 mm taller than A5. They are close but not interchangeable: a layout built for one clips or leaves a border on the other.
Can you print A5 on C5?
Not at full size without a change. Shrink A5 to 109% to fit C5, which leaves a thin border, or print at 100% and lose 7 mm off each side and 9.5 mm top and bottom.
✓ Dimensions per the standards on the C5 and A5 pages. Differences and scale factors computed. Reviewed . Editorial Process →