electronica

15 free electronica calculators. Enter your numbers and get the result instantly, with the formula and a worked example on every page.

Voltage Divider Calculator

Free online voltage divider calculator. Enter v in and r1 to get instant results.

LED Resistor Calculator

Free online led resistor calculator. Enter supply v and led vf to get instant results.

Parallel Resistance Calculator

Free online parallel resistance calculator. Enter r1 and r2 to get instant results.

Capacitor Energy Calculator

Free online capacitor energy calculator. Enter capacitance and voltage to get instant results.

Inductor Energy Calculator

Free online inductor energy calculator. Enter inductance and current to get instant results.

Transformer Turns Ratio

Free online transformer turns ratio. Enter primary v and secondary v to get instant results.

RC Time Constant Calculator

Free online rc time constant calculator. Enter resistance and capacitance to get instant results.

Wheatstone Bridge Calculator

Free online wheatstone bridge calculator. Enter r1 and r2 to get instant results.

Series Capacitance Calculator

Free online series capacitance calculator. Enter c1 and c2 to get instant results.

Resistor Color Code Calculator

Free online resistor color code calculator. Enter band 1 and band 2 to get instant results.

Resistor Color Code Calculator

Resistor Color Code Calculator. Free online calculator with formula, examples and step-by-step guide.

Capacitor Energy Calculator

Capacitor Energy Calculator. Free online calculator with formula, examples and step-by-step guide.

Voltage Divider Calculator

Voltage Divider Calculator. Free online calculator with formula, examples and step-by-step guide.

RC Time Constant Calculator

RC Time Constant Calculator. Free online calculator with formula, examples and step-by-step guide.

Wheatstone Bridge Calculator

Wheatstone Bridge Calculator. Free online calculator with formula, examples and step-by-step guide.