Standard Trace
Trace Width: 10 mils; Trace Thickness (Copper Weight): 1 oz/ft²; Allowable Temperature Rise: 10 °C
Estimated Current Capacity: 0.001518893277 Amps
PCB Trace Current Calculator
Other0.0(0)
Estimates the maximum current a PCB trace can handle based on width, thickness, and temperature rise.
How To Use
How to use this calculator
Start with your values, or try a preset.
Step 1
Enter Trace Width, Trace Thickness (Copper Weight), and Allowable Temperature Rise in the units shown.
Step 2
Read Estimated Current Capacity in the results panel. Results update as you change the inputs.
Step 3
Choose a preset to load an example, then adjust the values for your situation.
Worked Examples
Example calculations
See the inputs and their calculated results.
High Current
Trace Width: 50 mils; Trace Thickness (Copper Weight): 2 oz/ft²; Allowable Temperature Rise: 20 °C
Estimated Current Capacity: 0.02146725258 Amps
Thin Trace
Trace Width: 5 mils; Trace Thickness (Copper Weight): 0.5 oz/ft²; Allowable Temperature Rise: 10 °C
Estimated Current Capacity: 0.0003804733192 Amps
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