ResistorsAvailable
Ohm's Law Calculator
Calculate voltage, current, resistance, and power from any two known values.
Calculator category
Resistor Calculators
Resistor calculators support practical electronics engineering work such as DC circuit design, current limiting, voltage scaling, power dissipation checks, and resistor network analysis. These tools help hardware engineers and PCB designers validate component values, estimate operating margins, and troubleshoot circuits before moving into schematic review or board layout.
Available Calculators
6
In Development
0
Coming Soon
0
Calculators
Available tools link to working calculators. In-development and coming-soon tools show the current roadmap for this category.
ResistorsAvailable
Resistor Color Code Calculator
Decode 4-band, 5-band, and 6-band resistor values, tolerance, and temperature coefficient.
ResistorsAvailable
SMD Resistor Code Calculator
Decode 3-digit, 4-digit, R notation, decimal, and EIA-96 SMD resistor markings.
ResistorsAvailable
Voltage Divider Calculator
Calculate output voltage, reverse-solve resistor values, divider current, and power dissipation.
ResistorsAvailable
Series & Parallel Resistor Calculator
Calculate equivalent resistance for dynamic series and parallel resistor networks.
ResistorsAvailable
LED Resistor Calculator
Calculate LED current-limiting resistance, E24 selection, and resistor power rating.
Engineering Applications
Voltage Scaling
Current Limiting
Power Dissipation
Sensor Biasing
Related Engineering Guides
Related categories
LEDs
LED calculators for indicators, LED strips, high-power LEDs, RGB lighting, and current limiting.
Power
Power electronics calculators for regulators, converters, thermal design, current estimates, and hardware margins.
Converters
Engineering converters for units, RF power, wire gauge, number formats, and electronics design workflows.