Wavelength Calculator
Convert frequency to wavelength for PCB design
Input Parameters
Results
Wavelength in PCB (Er=4.5)
141.32 mm
5.564 inch
Wavelength in Free Space
299.79 mm
11.803 inch
Critical Lengths for PCB Design
λ/4 (Quarter Wave)
35.33 mm
λ/10 (Lumped Limit)
14.13 mm
Period
1.000 ns
Velocity
141.3 km/s
PCB Design Rules
- λ/10: Maximum trace length for lumped element behavior
- λ/4: Quarter wave stub length for matching
- λ/2: Half wave resonator length
Common Frequencies
WiFi 2.4 GHz59 mm (FR-4)
WiFi 5 GHz28 mm (FR-4)
USB 480 MHz294 mm (FR-4)
PCIe 2.5 GHz56 mm (FR-4)