A Format vs US Mass Market
A Format is 4 mm wider and 6 mm taller than US Mass Market. They are close but not interchangeable: a layout built for one clips or leaves a border on the other.
Compare a Different Pair
A Format and US Mass Market, Side by Side
| A Format | US Mass Market | Difference | |
|---|---|---|---|
| Millimetres | 110 × 178 | 106 × 172 | 4 × 6 mm |
| Inches | 4.33 × 7.01 | 4.17 × 6.77 | 0.16 × 0.24 in |
| Centimetres | 11.0 × 17.8 | 10.6 × 17.2 | |
| Area | 0.0196 m², 19,580 mm² | 0.0182 m², 18,232 mm² | 1.07× |
| Aspect ratio | 1 : 1.618 | 1 : 1.623 | 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 | A Format onto US Mass Market | US Mass Market onto A Format |
|---|---|---|---|
| Width | 2 mm (0.08 in) each side | A Format loses it | blank band |
| Height | 3 mm (0.12 in) each end | A Format 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:
| US Mass Market to fit A Format | 103% | leaves a thin border on one pair of edges |
|---|---|---|
| A Format to fit US Mass Market | 96% | 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.
Frequently Asked Questions
Is A Format bigger than US Mass Market?
A Format is bigger. It is 110 × 178 mm against 106 × 172 mm for US Mass Market, about 1.07 times the area.
What is the difference between A Format and US Mass Market?
A Format is 4 mm wider and 6 mm taller than US Mass Market. They are close but not interchangeable: a layout built for one clips or leaves a border on the other.
Can you print US Mass Market on A Format?
Not at full size without a change. Shrink US Mass Market to 103% to fit A Format, which leaves a thin border, or print at 100% and lose 2 mm off each side and 3 mm top and bottom.
✓ Dimensions per the standards on the A Format and US Mass Market pages. Differences and scale factors computed. Reviewed . Editorial Process →