# How to find or compute or look for overall/max RPM by simply checking for rotation?

I find it hard to determine the wheel RPM since I’m only making a simple 2D game of rotating object via Z-axis. I wanna try this solution but I got no change since I’m trying to find the RPM from a game object that has a rigid body 2D and a circle collider. I decided to think of something more simple but alternate solution. I ain’t good at math and that took me around 4 days to guess but no luck. I want to know possibilities of checking its rotation from transform properties, figuring out yet about 6 degrees per second equivalent to 1 RPM as said from the link. I used the method `transform.Rotate()` for rotation speed. Please help me.

The info in the link does not looks rigth, if you game runs does not runs at 60 fps.

RMP means rotations per minute

1 rotation have 360 degrees

1 minute have 60 seconds

So

RMP * 360 degrees = degrees per minute

angles per minute / 60 seconds = degrees per second

After finding the degrees per second (angular velocity) do the steps in reverse to get the RMP

``````void Update(){
currentEuler = transform.rotation.eulerAngles.z; // only care about the Z axis
// if you remember you physics class displacement over time variation is equal to velocity
yDegreesPerSecond = Mathf.Abs(currentEuler - previousEuler) / Time.deltaTime;
...
previousEuler = currentEuler;
}
``````