Provided are an ultrasound system and method for providing method for providing biometric information of a fetus, i.e., graphical representation of fetal biometric information. The ultrasound system includes: an ultrasound data acquisition unit that acquires ultrasound data of a living body including a fetus; a storage unit for storing reference information corresponding to each of a plurality of measurement parameters; and a processor that generates an ultrasound image by using the ultrasound data, performs biometric measurement based on the ultrasound image, produces biometric measurement information including biometric measurement parameters of the fetus and their corresponding measurement values, calculates the measurement values as a percentile rank or percent based on the reference information, and creates a graph that represents the biometric measurement information by using the percentile rank or percent.