A3 Paper Size

297 x 420 mm

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What is A3 paper size?

A A3 piece of paper measures 297 × 420 mm or 11.69 × 16.54 in. At 300 DPI, that is 3508 × 4961 pixels. A3 is part of the A Paper Sizes.

A3 — Units

Units Width × Height
Millimeters (mm) 297 × 420 mm
Centimeters (cm) 29.7 × 42 cm
Meters (m) 0.297 × 0.42 m
Inches (in) 11.69 × 16.54 in
Points (pt) 842 × 1,191 pt
Picas (pc) 70.2 × 99.2 pc
Pixels @300 DPI 3508 × 4961 px
Pixels @72 DPI 842 × 1191 px

All A Paper Sizes — View all →

A0
841 x 1189
mm
A1
594 x 841
mm
A2
420 x 594
mm
A4
210 x 297
mm
A5
148 x 210
mm
A6
105 x 148
mm
A7
74 x 105
mm
A8
52 x 74
mm
A9
37 x 52
mm
A10
26 x 37
mm
2A0
1189 x 1682
mm
4A0
1682 x 2378
mm

Frequently Asked Questions

What is A3 in inches?

A3 is 11.69 × 16.54 inches.

What is A3 in mm?

A3 is 297 × 420 mm.

What is A3 in pixels at 300 DPI?

A3 is 3508 × 4961 pixels at 300 DPI (or 842 × 1191 pixels at 72 DPI).

What is A3 in cm?

A3 is 29.7 × 42 cm.