Absolutely normal. China male (18 ~ 45 years old) has a penis length (non-erection) of 4.5 ~ 8.8 cm, with an average of 6.5 cm, an average transverse diameter of 2.5 cm and an average circumference of 8 cm in the middle of the penis. After erection, it usually doubles.
Therefore, whether you are erect or not, it is normal.