AWR1642BOOST: Coversion of doppler(m/s) to actual velocity of the object(m/s or km/hr)

Hi,

I am using AWR1642 BOOST EVM.

I was using Demo-Visualizer to analyze the range and velocity of objects. But it only provides me with doppler data in a graph. The doppler value is positive if the object moves away from the radar and negative if the object moves towards the radar.(Refer image).

I managed to obtain the same value of doppler data using python.(Refer Image)

But I need the actual velocity of the detected object.

Q1. Is there a standard comparison table between doppler and velocity, to know the velocity right away?

Q2. Or is there any procedure to calculate the actual velocity of the object?

Thanks

Guru