I was just curious to know what is considered big in regards to a babies head circumference?

My DD's measurements were as follows:
Weight: 6.6 pounds
Length: 51cm
HC: 35.5cm

In regards to weight I know she was on the smaller side of average but I tend to think her head may have been on the bigger side? Am I correct? I also think she may have been a bit on the long side for her weight.

Any thoughts?