Trace Calculator for Eagle Users
Autodesk Eagle & Fusion 360 Electronics
Autodesk Eagle (now part of Fusion 360) is a popular PCB design tool but lacks built-in trace width and impedance calculators. Our free tool provides the engineering calculations you need to complement your Eagle designs.
Eagle excels at schematic capture and PCB layout with its intuitive interface and extensive component libraries. But it doesn't include trace width or impedance calculators.
Calculate exact trace widths, via currents, and impedances, then apply them to your Eagle design rules. Professional results without additional software costs.
Eagle vs TraceWidthCalculator
| Feature | Autodesk Eagle | TraceWidthCalculator |
|---|---|---|
| Trace Width Calculator | Not built-in | Full IPC-2221 |
| Via Current Calculator | Not available | Full support |
| Impedance Calculator | Not available | Microstrip & Stripline |
| Differential Pairs | Routing support | Calculation tool |
| Design Rules | Full DRC | Value calculator |
| Cost | $545+/year | Free |
Tips for Eagle Users
Design Rules Setup
After calculating trace widths, configure Eagle's DRC (Design Rule Check) with the appropriate minimum widths for power and signal nets.
Net Classes
Use Eagle's net classes to define different trace widths for power, signal, and high-speed nets. Our calculator helps determine the right values for each class.
Controlled Impedance
Calculate impedance values here, then work with your PCB manufacturer to match stackup specifications when ordering boards through Eagle's or Fusion 360's integration.
About Autodesk Eagle
Eagle (Easily Applicable Graphical Layout Editor) is a PCB design software that was acquired by Autodesk in 2016 and is now integrated into Fusion 360 as "Fusion 360 Electronics" (formerly EAGLE).
Eagle is known for its user-friendly interface, extensive component libraries, and strong community support. It's popular among hobbyists, makers, and small-scale professional projects.
While Eagle provides excellent design capabilities, engineering calculations like trace width and impedance require external tools—that's where TraceWidthCalculator comes in.
Combined Workflow
Calculate for Your Eagle Project
Free, instant IPC-2221 calculations to complement your Eagle workflow. No additional software needed—just accurate engineering calculations.
Frequently Asked Questions
Does this replace Eagle?
No, this complements Eagle. Use Eagle for design and layout, TraceWidthCalculator for engineering calculations.
Does Eagle have built-in calculators?
Eagle doesn't include trace width or impedance calculators. These calculations need external tools like ours.
How do I apply calculated values in Eagle?
Set trace widths in Eagle's Design Rules (DRC) or define net classes with appropriate widths for different signal types.
Is this affiliated with Autodesk?
No. TraceWidthCalculator is an independent, free tool. Eagle and Fusion 360 are trademarks of Autodesk.
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