Simplest Way To Know The Size Of Repo Using Git Before Cloning It.

I wanna know size of <a href="https://github.com/Xilinx/gcc" target="_blank" rel="nofollow noopener noreferrer">GitHub - Xilinx/gcc: Upstream gcc + xilinx branches</a> before I start cloning it to my machine. Is there anyway to do it ? If yes, then how ?