← All calculators
Electronics Calculators
Accelerate your electronics projects with specialized calculators for circuit design and analysis. These tools apply fundamental electrical engineering principles to solve common design challenges instantly. Whether you're building LED circuits, designing filters, calculating component values, or estimating battery life, our electronics calculators help hobbyists and professionals alike avoid tedious manual calculations and focus on building great projects.
6 calculators in this category
Battery Runtime
ElectronicsRuntime from capacity and load current.
Capacitor Charge Time
ElectronicsTime to reach a target % of final voltage in RC.
LED Resistor
ElectronicsSeries resistor and power for an LED.
Ohm's Law
ElectronicsV/I/R + power.
RC Cutoff
ElectronicsRC time constant and cutoff frequency.
Resistor Divider
ElectronicsVout, current, resistor power.
Popular Use Cases
- ✓Calculate resistor values for LED circuits using Ohm's law
- ✓Design voltage dividers for sensor interfacing
- ✓Determine RC filter cutoff frequencies
- ✓Calculate capacitor charge and discharge times
- ✓Estimate battery runtime for portable projects
Related Tools
electronics calculatorOhm's law calculatorLED resistor calculatorcircuit calculatorvoltage divider