This Power density calculator allows you to measure the power density from an antenna at a certain distance by providing the output power and gain values.

This battery life calculator allows you to estimate the battery runtime. You can calculate how long the battery will last depending on the battery capacity and the amount of current consumed by the circuit.

Estimate radar detection range instantly using transmitter power, antenna gain, frequency, and target parameters with this radar range calculator.

The Time Constant Calculator is also sometimes referred to as an RC filter calculator or Capacitor charge time calculator, since it is very useful when calculating the capacitor value for an RC filter or when calculating the energy stored in a capacitor.

Professional PCB trace width calculator using IPC-2221 standards. Calculate trace width, resistance, voltage drop, & power loss with flexible units. Free tool for engineers & students.