What are the length and width of the A4 in centimeters?

[OBarrett]

A4 dimensions are 476.2 cm in length, 184.7 cm in width, and 143.6 cm in height, with a wheelbase of 282.8 cm. Overview: The Audi A4L is a model officially released by Audi on November 16, 2008. The new Audi A4L features a completely new exterior and chassis design, with the front and rear closely resembling the Audi A5. It boasts a stylish and dynamic appearance with smooth lines; the interior is exquisitely crafted, offering spacious and practical space, embodying the brand's classic appeal. Model Introduction: Many components of the redesigned chassis are made of aluminum, enhancing the chassis strength while reducing weight. The rear features smooth, full, and rounded lines, with a slightly upturned trunk lid design that helps stabilize the airflow at the rear during high-speed driving.

[PeterDella]

The length of an A4 sheet is 29.7 cm, and its width is 21 cm. I use this size almost every day because it's essential for printing documents or designing tables at work. Its standardization comes from the ISO 216 specification, which is universally adopted across all countries, unlike the inconsistent letter paper sizes used in the U.S. What I find particularly convenient is its aspect ratio of approximately 1.414, ensuring no distortion when photocopying to A5 or enlarging to A3, keeping files neatly organized. The paper area is about 624 square centimeters, fitting perfectly into folders without wasting edges. When buying paper, I always check for accurate sizing and affordable prices—around a few dozen yuan per pack—but avoid overly low-quality options to prevent brittleness.

[SanEliza]

Oh, the standard size of A4 paper is 21 cm wide and 29.7 cm long—don't get these numbers wrong. As someone who frequently handles printing, I know the millimeter measurement of 210×297 is more precise. The design concept is brilliant: each sheet doubles or halves in area while maintaining the same aspect ratio. A4 is essentially A0 paper cut in half four times, making file scaling effortless. At work, whether scanning contracts or binding booklets, using its default parameters saves time and reduces errors. It's also environmentally friendly, minimizing waste during trimming. When measuring, use a millimeter ruler for accuracy—don’t cut corners to avoid printing misalignment mishaps.

[Alfie]

Our students usually use A4-sized paper for homework, which is 21 cm wide and 29.7 cm high. You can measure a notebook to confirm. This size is moderate and fits well in school bags, matching printed test papers or note templates without leaving edges too narrow for writing. Copied materials remain neat and consistent. I find it more convenient than A5 and smaller than A3 for copying content. Exam answer sheets also follow this standard, so no need to worry about using the wrong paper—just remember 21 and 29.7.

[DiBella]

At home, I always use A4 paper for printing photos, which is 21 cm wide and 29.7 cm long. When buying paper at the supermarket, this size is the default, and it fits perfectly in the drawer. The size comes from an international standard, offering strong practicality and easy file storage. Recalling the past when papers were chaotic, now the uniformity reduces trouble. I often print my child's homework or recipes, as the large area provides ample space for content. Measuring the size is simple with centimeter units.

[VonElisa]

When I first learned about printing, I figured out that A4 paper is 210mm wide and 297mm long, which translates to 21cm in width and 29.7cm in height. This ratio of approximately 1.414 comes from geometric design, allowing for perfect scaling. For comparison: A3 paper is larger at 29.7×42cm, while A5 is half the size at 21×14.8cm. In practical use, there's no issue with copying or binding. I started making simple flyers using this size, memorizing the dimensions to avoid layout mistakes.