Calculators

Resistors

Resistor calculators for circuit design, component selection, power dissipation, and hardware troubleshooting.

6 available, 0 in development

Capacitors

Capacitor calculators for RC timing, filtering, signal coupling, energy storage, and component selection.

5 available, 0 in development

Inductors

Inductor calculators for converter design, LC resonance, EMI filtering, RF circuits, and stored energy.

0 available, 1 in development

Diodes

Diode calculators for rectification, zener regulation, voltage drops, protection circuits, and power loss.

0 available, 1 in development

LEDs

LED calculators for indicators, LED strips, high-power LEDs, RGB lighting, and current limiting.

1 available, 0 in development

MOSFETs

MOSFET calculators for switching loss, conduction loss, gate drive, thermal checks, and power hardware design.

0 available, 1 in development

Power

Power electronics calculators for regulators, converters, thermal design, current estimates, and hardware margins.

0 available, 1 in development

PCB

PCB calculators for trace design, copper thickness, current capacity, thermal design, and board-level constraints.

0 available, 1 in development

Converters

Engineering converters for units, RF power, wire gauge, number formats, and electronics design workflows.

0 available, 1 in development

Ohm's Law Calculator

Calculate voltage, current, resistance, and power from any two known values in a DC circuit.

Resistor Color Code Calculator

Decode 4-band, 5-band, and 6-band resistor colors with tolerance, resistance range, and temperature coefficient.

SMD Resistor Code Calculator

Decode 3-digit, 4-digit, R notation, decimal, and EIA-96 surface-mount resistor markings.

Voltage Divider Calculator

Calculate divider output voltage, reverse-solve R1 or R2, and check divider current and resistor power.

Series & Parallel Resistor Calculator

Calculate equivalent resistance for dynamic series and parallel resistor networks with mixed resistance units.

LED Resistor Calculator

Calculate LED current-limiting resistance, the next higher E24 value, power rating, and total circuit current.

Capacitor Code Calculator

Decode three-digit ceramic capacitor codes and tolerance letters into pF, nF, and µF values.

Series & Parallel Capacitor Calculator

Calculate equivalent capacitance for dynamic series and parallel capacitor networks with mixed units.

RC Time Constant Calculator

Calculate RC time constant, charge and discharge timing, and reference voltages from resistance and capacitance.

Capacitive Reactance Calculator

Calculate capacitive reactance and angular frequency from capacitance and AC frequency with engineering unit conversion.

RC Low-pass Filter Calculator

Calculate RC low-pass cutoff frequency, time constant, voltage gain, attenuation, and phase shift.