External PCB Trace Width

Calculate the required trace width for a specified current

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Trace Width Calculator

Choose Type

Microstrip Trace Width Calculator

Inputs

Max Current

Trace Width Unit

Trace Thickness

Temperature Rise

Trise

Additional Inputs

Ambient Temperature

Tamb

Length

Output

Trace Width:

Additional Output

Trace Temperature:

Resistance:

Voltage Drop:

Power Dissipation:

Tool Description

Trace width is a requirement that designers specify to ensure that the trace can handle the required current capacity. This tool calculates the trace width based upon the following design specifications:

Max Current
Trace Thickness
Max Desired Temperature Rise

This tool also calculates the following additional valuable information related to the trace:

Resistance
Votlage Drop
Trace Power Dissipation

After a user specifies the max current, trace thickness, and desired max temperature rise, the tool calculates the trace width. This tool is based on charts in IPC-2221