Or try an example search: Resistor Color Code Calculator
A Link Budget puts into account all gains and losses a signal goes through in a system as it is transmitted. The calculator calculates the power of the received signal given amplifier and antenna gains, and medium loss.
This calculator gives the reactance and admittance of an inductor or the inductance given the reactance of an inductor
This calculator allows you to solve for any of the six variables in the Friis formula for RF transmission: transmitter power, transmitter gain, receiver power, receiver gain, frequency, or distance.
This calculator calculates the free space loss, given the distance, frequency, and gain, between two antennas.
A helpful tool for computing the Effective Isotropic Radiated Power (EIRP) of an antenna
A tool designed to calculate the noise figure of cascaded amplifiers
A helpful tool for calculating the impedance of a coaxial cable.
A calculator for solving the maximum current a microstrip can handle.
This calculator computes the inductance of a microstrip etched on a PCB.