NFL betting odds are based on a few different factors, one of which is home field advantage. It is important to understand the home field advantage and how it relates to NFL odds. NFL odds are made by looking at power ratings, home field advantage and other minor factors.
The power ratings and the home field edge are the two main components of the NFL betting odds. NFL odds makers will tell you that home field is worth about three points but that is really not accurate. Some teams and venues rate higher than that in NFL odds while other teams rate lower.