A growing collection of fast, accurate, browser-based tools for the working RF engineer — impedance matching, antenna design, link budgets, and more.
A few of the calculators currently available. More added regularly.
Z₀ and εeff for microstrip lines using Hammerstad-Jensen with thickness correction.
LiveSymmetric stripline Z₀ via the IPC-2141A formula with conductor-thickness correction.
LiveCPW and grounded CPW impedance using Wadell's elliptic-integral formulation.
LiveConvert between VSWR, return loss, and reflection coefficient. Plus mismatch loss.
LiveFree-space path loss, EIRP, received power, and link margin from the Friis equation.
LiveInteractive Smith chart for impedance matching, stub design, and matching networks.
Coming soonWirelessTools.dev is a growing library of practical RF and antenna engineering calculators, built and maintained by a working wireless consulting engineer. If you have an RF challenge that needs solving — antenna integration, impedance matching, link budget, EMC — get in touch.
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