A1 Paper Size
A1 paper size measures 594 × 841 mm. The Dimensions of A1 Paper are 23.39 by 33.11 inches, 59.4 by 84.1 centimetres, 7016 by 9933 pixels at 300 DPI, and 1684 by 2384 points. It is half of A0. Its most common use is flip charts.
A1 measures 594 millimetres wide and 841 millimetres tall.
Dimensions of A1 Paper
| Unit | Width | Height | Width × height | Copy |
|---|---|---|---|---|
| Millimetres (mm) | 594 | 841 | 594 × 841 mm | |
| Centimetres (cm) | 59.4 | 84.1 | 59.4 × 84.1 cm | |
| Metres (m) | 0.594 | 0.841 | 0.594 × 0.841 m | |
| Inches (in) | 23.39 | 33.11 | 23.39 × 33.11 in | |
| Feet (ft) | 1.95 | 2.76 | 1.95 × 2.76 ft | |
| Points (pt) | 1684 | 2384 | 1684 × 2384 pt | |
| Picas (pc) | 140.3 | 198.7 | 140.3 × 198.7 pc | |
| Pixels at 72 DPI | 1684 | 2384 | 1684 × 2384 px | |
| Pixels at 150 DPI | 3508 | 4967 | 3508 × 4967 px | |
| Pixels at 300 DPI | 7016 | 9933 | 7016 × 9933 px | |
| Pixels at 600 DPI | 14031 | 19866 | 14031 × 19866 px |
Pixel counts follow from the resolution: pixels = millimetres ÷ 25.4 × DPI. More on the DPI and pixels page.
A1 Paper Format
A1 is half of A0 and folds in half to A2. One A1 sheet tiles into 2 × A2, 4 × A3, 8 × A4. Put A1 next to another size in the comparison tool.
A1 Size in Millimeters (mm)
A1 is 594 × 841 mm (594 mm wide, 841 mm tall). Millimetres are the base unit of ISO 216, so these are the exact figures paper mills and print shops cut to. Page-setup dialogs outside the US expect ISO A-series sizes entered in mm.
A1 Size in Centimeters (cm)
A1 is 59.4 × 84.1 cm. Centimetres are the handy unit for checking a sheet against a school ruler or giving a rough size; the figure is the millimetre value divided by ten.
A1 Size in Inches
A1 is 23.39 × 33.11 inches. Inches come up when A1 is opened in US-configured software or compared with Letter and Legal. One inch is fixed at 25.4 mm.
A1 Size in Pixels
At 300 DPI A1 is 7016 × 9933 px; at 72 DPI it is 1684 × 2384 px. Pixel dimensions are what you type into the new-document box in Photoshop, GIMP or Figma, and they scale with the DPI you choose.
A1 in Pixels at 72 DPI (Screen)
A1 is 1684 × 2384 px at 72 DPI. This is the legacy screen resolution, used for on-screen mockups, web previews and wireframes where physical print size is not the point.
A1 in Pixels at 300 DPI (Print)
A1 is 7016 × 9933 px at 300 DPI. 300 DPI is the print-quality benchmark, so set an A1 canvas to this pixel count for anything going to a commercial or a good home printer.
A1 Size in Points (pt)
A1 is 1684 × 2384 points. Points are the unit of PDF, InDesign and LaTeX page geometry, where 72 points make one inch. A page set to 1684 by 2384 pt exports as A1.
A1 Shape and Area
| Aspect ratio | 1 : 1.416 (√2) |
|---|---|
| Area | 0.5 m² · 499,554 mm² |
| Diagonal | 1029.6 mm · 40.54 in |
| ISO 216 tolerance | ± 2 mm (594 mm side) · ± 3 mm (841 mm side) |
| Governing standard | ISO 216:2007 |
Frequently Asked Questions
What is A1 Paper Size?
A piece of A1 paper measures 594 × 841 mm (23.39 × 33.11 in). It is one of the ISO 216 A-series sizes, made by folding A0 in half, and it folds again to make A2.
What are the Uses of A1 Paper?
A1 is used for flip-chart and easel pads, construction and site plans, retail and cinema posters.
How long is a piece of A1 paper?
A1 is 841 mm long on the longer edge and 594 mm on the shorter edge, which is 84.1 cm by 59.4 cm.
How long is A1 paper in inches?
The long edge of A1 is 33.11 inches and the short edge is 23.39 inches.
How long is a piece of A1 paper in cm?
A1 is 84.1 cm long by 59.4 cm wide.
A Paper Sizes
✓ Dimensions per ISO 216:2007; unit values derived by formula. Reviewed . Editorial Process →