A6 vs 4R
A6 is 3.4 mm wider and 4.4 mm shorter than 4R. They are close but not interchangeable: a layout built for one clips or leaves a border on the other.
Compare a Different Pair
A6 and 4R, Side by Side
| A6 | 4R | Difference | |
|---|---|---|---|
| Millimetres | 105 × 148 | 101.6 × 152.4 | 3.4 × 4.4 mm |
| Inches | 4.13 × 5.83 | 4 × 6 | 0.13 × 0.17 in |
| Centimetres | 10.5 × 14.8 | 10.2 × 15.2 | |
| Area | 0.0155 m², 15,540 mm² | 0.0155 m², 15,484 mm² | 1× |
| Aspect ratio | 1 : 1.410 (√2) | 1 : 1.500 | different |
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 | A6 onto 4R | 4R onto A6 |
|---|---|---|---|
| Width | 1.7 mm (0.07 in) each side | A6 loses it | blank band |
| Height | 2.2 mm (0.09 in) each end | blank band | 4R loses it |
Scale-to-Fit Percentages
The figure to type into a printer or PDF dialog to scale one to fit inside the other:
| 4R to fit A6 | 97% | leaves a thin border on one pair of edges |
|---|---|---|
| A6 to fit 4R | 97% | leaves a thin border on one pair of edges |
Beyond the Measurements
Envelopes: A6 fits C6; 4R has none.
Frequently Asked Questions
Is A6 bigger than 4R?
A6 is bigger. It is 105 × 148 mm against 101.6 × 152.4 mm for 4R, about 1 times the area.
What is the difference between A6 and 4R?
A6 is 3.4 mm wider and 4.4 mm shorter than 4R. They are close but not interchangeable: a layout built for one clips or leaves a border on the other.
Can you print 4R on A6?
Not at full size without a change. Shrink 4R to 97% to fit A6, which leaves a thin border, or print at 100% and lose 1.7 mm off each side and 2.2 mm top and bottom.
✓ Dimensions per the standards on the A6 and 4R pages. Differences and scale factors computed. Reviewed . Editorial Process →