C0 vs C1
C0 is the larger of the two at the same 1 : √2 shape, one halving apart, so one scales onto the other with nothing cropped: 141% up, 71% down.
Compare a Different Pair
C0 and C1, Side by Side
| C0 | C1 | Difference | |
|---|---|---|---|
| Millimetres | 917 × 1297 | 648 × 917 | 269 × 380 mm |
| Inches | 36.1 × 51.06 | 25.51 × 36.1 | 10.59 × 14.96 in |
| Centimetres | 91.7 × 129.7 | 64.8 × 91.7 | |
| Area | 1.19 m², 1,189,349 mm² | 0.594 m², 594,216 mm² | 2× |
| Aspect ratio | 1 : 1.414 (√2) | 1 : 1.415 (√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 | C0 onto C1 | C1 onto C0 |
|---|---|---|---|
| Width | 134.5 mm (5.3 in) each side | C0 loses it | blank band |
| Height | 190 mm (7.48 in) each end | C0 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:
| C1 to fit C0 | 141% | fills the sheet, nothing cropped |
|---|---|---|
| C0 to fit C1 | 71% | fills the sheet, nothing cropped |
Both are one halving apart on the 1 : √2 series, so these are the copier presets and nothing is distorted or lost.
Frequently Asked Questions
Is C0 bigger than C1?
C0 is bigger. It is 917 × 1297 mm against 648 × 917 mm for C1, about 2 times the area.
What is the difference between C0 and C1?
C0 is the larger of the two at the same 1 : √2 shape, one halving apart, so one scales onto the other with nothing cropped: 141% up, 71% down.
Can you print C1 on C0?
Yes, cleanly. Set the printer to scale C1 to 141% and it fills C0 edge to edge with nothing lost.
✓ Dimensions per the standards on the C0 and C1 pages. Differences and scale factors computed. Reviewed . Editorial Process →