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Electronics & Circuits

Voltage, current, resistance, power and stored-energy calculations for learning and early circuit checks.

7 tools in this topic

Work through the numerical relationships in simple DC circuits while keeping loading and ideal assumptions visible. The collection joins five new electronics calculators with battery runtime, appliance energy, solar and lighting tools.

Other tools

1
Battery Runtime CalculatorConvert battery volts and amp-hours into usable energy and ideal load runtime.

Other tools

6
Voltage Divider CalculatorCalculate unloaded and loaded output voltage, divider current and output resistance.Battery Series & Parallel CalculatorEstimate nominal voltage, amp-hours, watt-hours and total cells for an S/P bank.Series & Parallel Resistance CalculatorCombine up to two hundred positive resistor values in series or parallel.LED Resistor CalculatorEstimate a series resistor and its dissipation from supply, forward voltage and current.Capacitor Energy CalculatorCalculate ideal stored energy, charge and farad value from capacitance in microfarads and voltage.AC RMS and Peak CalculatorConvert peak magnitude to RMS, peak-to-peak and crest factor for three ideal waveforms.