PCB Trace Width Calculator
Use this PCB Trace Width Calculator to determine the minimum trace width required for your printed circuit board (PCB) design according to the IPC-2221 standard. This tool helps calculate safe current capacity, voltage drop, and power loss for both internal and external PCB layers. Simply enter your design current, copper thickness, expected temperature rise, and ambient conditions to receive real-time feedback.
The IPC-2221 standard provides constants for both internal and external layers: k = 0.024 for internal, k = 0.048 for external, with b = 0.44 and c = 0.725 for both. Our calculator incorporates these for accurate estimates. This tool is ideal for electronics engineers, PCB designers, and hobbyists ensuring reliable circuit performance.
