PCB Trace Width Calculator

This calculator helps you determine the required trace width for a PCB based on the current, trace thickness, temperature rise, and trace length. It also calculates the resistance, voltage drop, and power loss for internal and external layers.

How to Use

1. Input the current, trace thickness, temperature rise, and trace length.
2. Select the units for each parameter.
3. Click "Calculate" to see the results.

Example

Input:

• Current: 1 A
• Thickness: 1 oz/ft²
• Temperature Rise: 10 °C
• Ambient Temperature: 25 °C
• Trace Length: 10 in

Output:

• Internal Layer Width: 30.944 mil
• External Layer Width: 11.895 mil
• Internal Resistance: 0.160106 Ω
• External Resistance: 0.416507 Ω
• Internal Voltage Drop: 0.160106 V
• External Voltage Drop: 0.416507 V
• Internal Power Loss: 0.160106 W
• External Power Loss: 0.416507 W