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We recommend using the kidney.wiki kidney length calculator

Issues with the kidney length nomogram (MrNomogram[1,2]):

Open our calculator Continue to MrNomogram

  1. Chen JJ, Zhi J, Mao W, Steinhardt GF. MrNomogram: a web-based multivariable pediatric renal nomogram. J Pediatr Urol. 2006;2(5):436-438.

    doi.org/10.1016/j.jpurol.2005.10.003 Pubmed ID 18947652

  2. Chen JJ, Pugach J, Patel M, Luisiri A, Steinhardt GF. The renal length nomogram: multivariable approach. J Urol. 2002;168(5):2149-2152.

    doi.org/10.1016/S0022-5347(05)64339-X Pubmed ID 12394745

  3. Vyas DA, Eisenstein LG, Jones DS. Hidden in plain sight: reconsidering the use of race correction in clinical algorithms. N Engl J Med. 2020;383(9):874-882.

    doi.org/10.1056/NEJMms2004740 Pubmed ID 32853499

  4. Horsfall LJ, Bondaronek P, Ive J, Poduval S. Clinical algorithms and the legacy of race-based correction: historical errors, contemporary revisions and equity-oriented methodologies for epidemiologists. Clin Epidemiol. 2025;17:647-662.

    doi.org/10.2147/CLEP.S527000 Pubmed ID 40673267