PCB Trace Width Calculator
Calculate optimal trace width according to IPC-2221 standards
A
oz/ft²
°C
inches
Width
IPC-2221 Compliant
Key Features
IPC-2221 Compliant
Calculations based on industry standard IPC-2221 formulas for reliability.
Internal & External
Support for both internal and external layer calculations with different thermal properties.
Comprehensive Results
Get width, resistance, voltage drop, and power loss in one calculation.
Frequently Asked Questions
What is the IPC-2221 standard?
IPC-2221 is the Generic Standard on Printed Board Design. It provides the formulas used to calculate the relationship between copper trace current carrying capacity, temperature rise, and trace geometry.
Why is trace width important?
Proper trace width ensures the PCB can handle the required current without overheating, which could lead to board failure or damage.