Tool Workspace
Enter content, process with one click
1Introduction
Paper sizes have international standards (ISO 216) for A, B, C series, as well as North American standards. Different uses may require different sizes. This tool supports conversion between A0-A10, B0-B10, C0-C10 series. You only need to input the dimensions in millimeters or inches to get the corresponding sizes in other series. Please note that conversions between different series are based on aspect ratio and area relationships, and the results are for reference only.
2How to Use
Input Dimensions
Enter the length and width of the paper, with units in millimeters or inches.
Select Input Series
Select which series the input dimensions belong to, such as A, B, or C.
Select Target Series
Select the target series to convert to, such as from A series to B series.
View Result
Click the 'Convert' button, and the output area will display the closest target series size.
3FAQ
What is the size of A4 paper?
A4 paper size is 210 x 297 millimeters.
How to convert A4 to B5?
Enter the dimensions of A4, select A series, and set the target series to B series. The tool will give the closest B series size, such as B5.
