The electronics hobbyist
toolbox.
Explore ideal DC circuits, component networks and time constants.
11 useful places to start.
These helpers use ideal component models and do not validate a circuit’s ratings or construction.
Capacitance converter
Convert farads, millifarads, microfarads, nanofarads and picofarads.
Inductance converter
Translate henries, millihenries, microhenries and nanohenries.
Electrical resistance converter
Translate ohms, milliohms, microohms, kilohms and megohms.
Ohm’s law calculator
Calculate current and resistor power from voltage and resistance.
DC electrical power calculator
Relate voltage and current to power and energy over time.
Series & parallel resistors
Calculate ideal resistance in series or parallel.
Series & parallel capacitors
Calculate ideal capacitance in series or parallel.
RC time constant calculator
Estimate ideal resistor-capacitor charging and discharging.
Capacitor energy calculator
Find stored charge and energy from capacitance and voltage.
Charge from current & time
Translate a constant current and duration into electric charge.
Frequency & period calculator
Convert frequency into cycle period, or period into frequency.
A few things you
can tick off.
- Calculate an ideal resistor’s current
- Compare series and parallel component networks
- Explore an RC charging time constant