Voltage Divider Calculator
Calculate divided output voltage and resistor ratios for analog circuits — electronics engineering tool.
Engineering & Technical6 live toolsClient-side first
Engineering & Technical tools
Solve electrical and technical calculations — voltage dividers, RC circuits, LED resistors, and battery runtimes.
Browse the live tools below to compare workflows, then jump into related utilities through the category hub without losing context.
LED Series Resistor Calculator
Calculate a safe resistor value and power rating for single-LED circuits — beginner electronics tool.
Power Supply Runtime Calculator
Estimate battery runtime from capacity (mAh) and expected load current — power electronics tool.
Capacitor Charge/Discharge Calculator
Estimate RC time constants and charge thresholds for timing circuits — capacitor electronics calculator.
Ohm’s Law & Power Triangle Calculator
Calculate voltage, current, resistance, power, and related electrical values with unit switching and visual formulas. It is ideal for students, technicians, and makers who need quick checks with clear explanations.
Resistor Color Code Calculator
Decode resistor bands visually, calculate tolerance, and switch between 4-band, 5-band, and 6-band modes. It helps electronics learners and hobbyists avoid common reading mistakes.