Complex Number Calculator

Add, subtract, multiply or divide complex numbers and get modulus and argument, free online.

First number — real part (a)

First number — imaginary part (b)

Operation

Second number — real part (c)

Second number — imaginary part (d)

About this calculator

Complex numbers a+bi follow the usual algebra with i² = −1. The result is shown in rectangular form together with its modulus |z| and argument (angle) in degrees.