Algebra
Complex number calculator
Work with numbers in the form a + bi and easily convert between rectangular and polar representations.
Complex number A
3 + 4i
Complex number B
1 − 2i
Complex plane
Horizontal axis: real part. Vertical axis: imaginary part.
AB
Operations
A in polar form
r = 5
θ = 53.13010235 °
Polar → rectangular
Frequently asked questions
What form does it use?
You can enter the real and imaginary part separately and convert to polar form.
Does it calculate the complex conjugate?
Yes, along with modulus, argument, integer powers, and operations on A and B.
Does it work in degrees and radians?
Yes. The argument and the polar conversion can be shown in both ways.