Table 2.

Normal kidney length (in cm) in adults based on age (in years)

Kidney LengthAge
30 yr40 yr50 yr60 yr70 yr
Left median kidney length11.511.311.311.110.5
 10th percentile10.410.310.210.09.4
 90th percentile12.812.312.512.212.0
Right median kidney length11.111.211.010.810.4
 10th percentile10.110.010.09.59.1
 90th percentile12.412.312.212.011.8
  • Kidney length was determined in a random population of study of 665 adult volunteers without ultrasonographic evidence of kidney disease; median left and right kidney size with 10th and 90th percentiles were reported according to age (16).