In the IP Protocol What is the header overhead?

internet Protocol, or IP, puts a header on every packet that it sounds out. This header is the overhead. All protocols, such as TCP or UDP, will put a header on the packet. The IP header contains information such as source IP address and destination IP address and is used by routers to figure out where to send the packet.

ex. you send your friend a 1kb file, but it takes up 1.5kb of bandwidth due to overhead