Tools for electrical and electronics engineering

Stack of Circuits is a web application for amateurs and professionals in the field of electronics. Here you will find various calculators and tools that will help you in the calculations and design of electronic circuits and devices.

• LED Resistor Calculator

  Calculation of a current limiting resistor for one or more LEDs connected in series. This calculator is ideal when you have one or more consecutive LEDs and you need to calculate which resistance resistor needs to be connected to the circuit.

• Resistor Color Code Calculator

  Calculation of the nominal value and tolerance of resistors by color code

• SMD Resistor Code Calculator

  Calculation of the resistance of an SMD resistor by code

• Inductor Color Code Calculator

  Calculation of the nominal value and tolerance of inductors by color code

• Ohm's Law Calculator

  Calculation of electrical circuit parameters using Ohm's law

• Parallel Equivalence Calculator

  Calculation of the equivalence value of parallel resistors, capacitors and inductors

• Series Equivalence Calculator

  Calculation of the equivalence value of series resistors, capacitors and inductors

• Voltage Divider Calculator

  Calculation of the voltage divider

• Battery Life Calculator

  Calculation of the battery life of the device from the battery or accumulator

• Voltage Regulator Calculator

  Calculation of resistors or voltage for LM317, LM338 or LM350 regulators.

• Parallel LC Resonant Circuit Calculator

  Calculation of the resonant frequency of a parallel LC resonant circuit.

• RC Time Constant Calculator

  Calculation of the time constant (in seconds) of a resistor–capacitor circuit.

• Capacitor Marking Calculator

  Calculation of the nominal value of the capacitor according to the marking

• Operational Amplifier Calculator

  Calculation of operational amplifier parameters

• Multivibrator calculator based on NE555

  Calculation of the time-consuming components of a multivibrator based on NE555.

• Resistor Calculator for Zener Diode

  Calculation of a resistor for a zener diode.

• Wires Voltage Drop Calculator

  Calculation of voltage drop on wires made of various materials of a given length.

• Power Dissipation Calculator

  Calculation of power dissipation for serial and parallel circuits.