RF Calculators

Free online tools for everyday RF engineering conversions and calculations.

Convert between dBm, Watts, milliwatts, dBW, and microwatts instantly.

Convert between VSWR, return loss, S11, reflection coefficient, and mismatch loss.

Calculate free-space path loss, received power, and wavelength.

Calculate skin depth and surface resistance for Cu, Al, Au, Ag at any frequency.

Calculate system NF, total gain, and noise temperature for up to 6 cascaded stages.

Convert frequency to wavelength with half-wave and quarter-wave outputs.

Convert between complex impedance (R+jX), reflection coefficient, admittance, and VSWR.