Traditional & historic sizes
Royal paper size
Royal measures 508 x 635 mm (20 x 25 in). Traditional British printing paper; origin of the Royal book size.
508 x 635millimetres
20 x 25inches
6,000 x 7,500pixels @ 300 dpi
Dimensions in every unit
| Unit | Width x height |
|---|---|
| Millimetres | 508 x 635 mm |
| Centimetres | 50.8 x 63.5 cm |
| Inches (decimal) | 20 x 25 in |
| Inches (fraction) | 20 x 25 in |
| Points (1/72 in) | 1440 x 1800 pt |
| Picas | 120 x 150 pc |
Pixel dimensions by resolution
| Resolution | Pixels | Megapixels |
|---|---|---|
| 72 dpi | 1,440 x 1,800 px | 2.6 MP |
| 96 dpi | 1,920 x 2,400 px | 4.6 MP |
| 150 dpi | 3,000 x 3,750 px | 11.3 MP |
| 200 dpi | 4,000 x 5,000 px | 20 MP |
| 300 dpi | 6,000 x 7,500 px | 45 MP |
| 600 dpi | 12,000 x 15,000 px | 180 MP |
300 dpi is the usual target for printed photos and artwork; 72–96 dpi is screen resolution.
Document size with bleed
| Bleed | Millimetres | Inches |
|---|---|---|
| 3 mm bleed (each side) | 514 x 641 mm | 20.236 x 25.236 in |
| 0.125 in bleed (each side) | 514.4 x 641.4 mm | 20.25 x 25.25 in |
How many Royal fit on a press sheet
| Sheet | Without bleed | With 3 mm bleed |
|---|---|---|
| B1 (offset) | 1-up | 1-up |
Simple grid imposition with no gutters or gripper margin; real layouts may fit fewer.
Similar sizes
Frequently asked questions
What are the dimensions of Royal?
Royal is 508 x 635 mm, which is 20 x 25 in (20 x 25 in).
How many pixels is Royal at 300 DPI?
6,000 x 7,500 pixels at 300 dpi, or 3,000 x 3,750 at 150 dpi.
Sources & data
- Dimensions per the relevant standard; see sources.