What is Cos 4 radians?

Here we answer one simple question: What is cos (4) radians? The answer is as follows:

Cos(4) = -0.653643620864

This is the same answer you will get if you have a scientific calculator set to RAD mode and then enter 4 followed by the Cos button.

Cos Calculator
To find cos of another number, please enter the number below and press "Calculate Cos".

What is Cos 5 radians?
Go here for the next number we converted to cos radians.