How to calculate the required number of FPGA logic elements || Cost of production for pytorch model

Hi, I am trying to figure out how to calculate the required number of FPGA logic elements for my deep learning model. I can calculate FLOPS and the number of params but have no idea about FPGA. Could anyone help with any suggestions?
I need to estimate the cost of production in an embedded system.

Thanks for any kind of suggestions or directions on where I might get started.