Electronics & RF Tools
Practical electronics, antenna, RF link and circuit-design tools.
Calculate component values and RF quantities, estimate links and antennas, synthesise filters, or assemble and simulate a custom two-port circuit. Important designs should always be validated with appropriate component models, instruments and safe working practice.
Calculate voltage, current or resistance using Ohm’s law.
↗ELECTRONICS & RFResistor IdentifierDecode leaded resistor colour bands and common SMD resistance markings.
↗ELECTRONICS & RFRF Power ConverterConvert RF power between watts, milliwatts, microwatts, dBm and dBW.
↗ELECTRONICS & RFRF Wavelength & Antenna CalculatorConvert frequency to wavelength and estimate full, half and quarter-wave antenna lengths.
↗ELECTRONICS & RFVSWR & Return Loss CalculatorConvert between VSWR, return loss and reflection coefficient, including mismatch loss.
↗ELECTRONICS & RFFree-Space Path Loss CalculatorEstimate ideal free-space RF path loss from frequency and distance.
↗ELECTRONICS & RFRF Link Budget CalculatorEstimate received signal level and link margin from power, gains, losses and receiver sensitivity.
↗ELECTRONICS & RFRF Field ToolkitCalculate coax loss, Fresnel clearance and RF voltage from dBm.
↗ELECTRONICS & RFRF Filter Designer & S2P ViewerDesign ideal lumped LC filters, graph S-parameters and import or export Touchstone files.
↗ELECTRONICS & RFRF Circuit StudioDraw a two-port RF circuit, edit component values and see its ideal S-parameter response update live.
↗Free tools.
Clear privacy.
Useful tools shouldn’t require an account or a personal profile.
- No accountsPick a tool and get straight to work.
- No saved tool historyWe do not build a profile of your calculations.
- No paywallsEvery tool is available to everyone.