PCB design Copper Foil Thickness, line width and current relationship

The computation of PCB streaming capability has always lacked authoritative technical methods and formulas. Experienced CAD engineers rely on their personal experience to make more accurate judgments. However, it is difficult for new users to use CAD.

The current Loading Capacity of PCB depends on the following factors: line width, line thickness (copper foil thickness), and allowable temperature rise. As we all know, the wider the PCB strip, the larger the streaming capacity. If 10 mil cabling can withstand 1A under the same conditions, how large is the current usage of 50 mil cabling? Is it 5A? Naturally, the answer is no. See the following data from international authorities: