Complex Number Calculator

Enter real and imaginary parts for two complex numbers and calculate the result, magnitude, and angle.

a (real)

b (imag)

c (real)

d (imag)

Operation

4 - 2iComplex-number result

4.472136Magnitude

-26.565°Argument

How to use this Complex Number Calculator

Add, subtract, multiply, or divide two complex numbers. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.