A0 Paper Size in mm and Inches
A0 = 841 x 1189 mm (33.1 x 46.8 in), the base ISO 216 A-series sheet with an area of 1 square meter.
Open the interactive Standards & Sizes tool →Key facts
| Millimeters | 841 x 1189 mm |
|---|---|
| Inches | 33.1 x 46.8 in |
| Area | ≈ 1 m² |
| Standard | ISO 216, A-series base |
Frequently asked questions
What is A0 size in cm?
A0 is 84.1 x 118.9 cm (841 x 1189 mm), or 33.1 x 46.8 inches.
Why is A0 1 square meter?
ISO 216 defines A0 with a 1:√2 ratio and a total area of exactly 1 m²; every smaller size halves it.
Related pages
A0 Paper Size is part of Standards & Sizes on GOAT Lab — a free reference you can use without signing up, and it works offline. Open the tool above for any custom value.
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