RF and Impedance Calculators
These impedance calculator tools cover microstrip, stripline, coaxial and parallel-wire lines, PCB differential impedance, VSWR, antennas, and L, Pi and T matching networks.
PCB Crosstalk Calculator
This PCB crosstalk calculator estimates the coupling between two adjacent microstrip traces from their spacing and…
Open calculator RF and ImpedancePi Network Calculator
This Pi network calculator designs a pi-section impedance-matching network for a chosen loaded Q. Enter the…
Open calculator RF and ImpedanceT Matching Network Calculator
This T matching network calculator designs a T-section impedance-matching network for a chosen loaded Q. Enter…
Open calculator RF and ImpedanceL Matching Network Calculator
This L matching network calculator finds the series and shunt reactances that match a source resistance…
Open calculator RF and ImpedanceStripline Impedance Calculator
This stripline impedance calculator finds the characteristic impedance of a trace buried between two ground planes,…
Open calculator RF and ImpedancePCB Differential Impedance Calculator
This PCB differential impedance calculator estimates the differential impedance of a coupled microstrip pair from the…
Open calculatorParallel Wire Impedance Calculator
This parallel wire impedance calculator finds the characteristic impedance of a two-wire transmission line from the…
Open calculator RF and ImpedanceMicrostrip Impedance Calculator
This microstrip impedance calculator finds the characteristic impedance of a PCB trace from its width, the…
Open calculator RF and ImpedanceCoaxial Cable Impedance Calculator
This coaxial cable impedance calculator finds the characteristic impedance Z₀ from the inner and outer conductor…
Open calculator RF and ImpedanceSpecific Absorption Rate (SAR) Calculator
This specific absorption rate calculator finds the SAR — the RF power absorbed per unit mass…
Open calculator RF and ImpedanceFigure of Merit (Q Factor) Calculator
This figure of merit calculator finds the quality factor (Q) of a resonant system from its…
Open calculatorAbout RF and Impedance Calculators
These impedance calculator tools cover microstrip, stripline, coaxial and parallel-wire lines, PCB differential impedance, VSWR, antennas, and L, Pi and T matching networks. Choose a tool below for an instant RF result with the formula.
RF and PCB layout depends on controlled impedance. These tools apply the standard transmission-line and matching equations so your traces, cables, and networks behave as intended.
Calculators in this category
- Microstrip Impedance Calculator
- Stripline Impedance Calculator
- Coaxial Cable Impedance Calculator
- Parallel Wire Impedance Calculator
- PCB Differential Impedance Calculator
- PCB Crosstalk Calculator
- VSWR Calculator
- Helical Antenna Calculator
- Specific Absorption Rate (SAR) Calculator
- RF Power Density Calculator
- Figure of Merit (Q Factor) Calculator
- L Matching Network Calculator
- Pi Network Calculator
- T Matching Network Calculator
Frequently Asked Questions
What RF values can I calculate?
Microstrip, stripline, coax and PCB differential impedance, crosstalk, VSWR, antenna dimensions, specific absorption rate, and L, Pi and T matching networks. Each tool covers one task.
Are these tools free to use?
Yes. Every calculator on this page is free, needs no signup, and works in your browser on mobile and desktop.
Are the transmission-line formulas shown?
Yes. Each page states the equation, defines trace or cable geometry and dielectric, and includes a numeric example.