Pediatric Dose Calculator

Sources

Every dose on this site comes from one of these references.

Sources

  1. Acetaminophen (Tylenol) Dose Table. St. Louis Children's Hospital (Schmitt Pediatric Guidelines). Checked 2026-09-18.
  2. Acetaminophen Dosing Tables for Fever and Pain in Infants & Children. American Academy of Pediatrics, HealthyChildren.org (updated 30 Jan 2026). Checked 2026-09-18.
  3. Ibuprofen (Motrin, Advil) Dose Table. St. Louis Children's Hospital (Schmitt Pediatric Guidelines). Checked 2026-09-18.
  4. Ibuprofen Dosing Table for Fever and Pain. American Academy of Pediatrics, HealthyChildren.org (updated 19 Sep 2024). Checked 2026-09-18.
  5. Diphenhydramine (Benadryl) Dose Table. St. Louis Children's Hospital (Schmitt Pediatric Guidelines). Checked 2026-09-18.
  6. Cetirizine (Zyrtec) Dose Table. St. Louis Children's Hospital (Schmitt Pediatric Guidelines). Checked 2026-09-18.
  7. Influenza Antiviral Medications: Summary for Clinicians. Centers for Disease Control and Prevention (reviewed 10 Mar 2026). Checked 2026-09-18.
  8. Amoxicillin prescribing information: Dosage and Administration. U.S. FDA label via DailyMed (revised 4 Sep 2026). Checked 2026-09-18.
  9. The Diagnosis and Management of Acute Otitis Media (Lieberthal et al.). American Academy of Pediatrics, Pediatrics 2013;131(3):e964-e999. Checked 2026-09-18.
  10. Evaluation and Treatment of Functional Constipation in Infants and Children (Tabbers et al.). ESPGHAN and NASPGHAN, J Pediatr Gastroenterol Nutr 2014;58(2):258-274. Checked 2026-09-18.
  11. Evaluation of Polyethylene Glycol Dosing for Functional Constipation in Children. Hospital Pharmacy, 2024 (PMC11497520). Checked 2026-09-18.
  12. Metric Units and the Preferred Dosing of Orally Administered Liquid Medications. American Academy of Pediatrics Committee on Drugs, Pediatrics 2015;135(4):784-787. Checked 2026-09-18.
  13. Liquid Medication Errors and Dosing Tools: A Randomized Controlled Experiment (Yin et al.). Pediatrics 2016;138(4):e20160357. Checked 2026-09-18.
  14. WHO Child Growth Standards: weight-for-age percentiles, 0-24 months. World Health Organization, data files hosted by CDC/NCHS. Checked 2026-09-18.
  15. Fever and Antipyretic Use in Children (Sullivan, Farrar). American Academy of Pediatrics clinical report, Pediatrics 2011;127(3):580-587. Checked 2026-09-18.
  16. Over-the-Counter Pediatric Oral Liquid Drug Products Containing Acetaminophen: Guidance for Industry. U.S. Food and Drug Administration, August 2015. Checked 2026-09-25.
  17. Ibuprofen Oral Suspension USP, 100 mg/5 mL: prescribing information, Dosage and Administration. U.S. FDA label via DailyMed (Padagis, rev. 12-24). Checked 2026-09-25.
  18. Adverse reactions to acetaminophen and ibuprofen in pediatric patients: a narrative review (Vassallo et al.). Italian Journal of Pediatrics, 2025 (PMC12570521). Checked 2026-09-25.
  19. Children’s Benadryl Allergy (diphenhydramine HCl 12.5 mg/5 mL): Drug Facts. Kenvue Brands, label via DailyMed (revised 24 Jul 2026). Checked 2026-09-25.
  20. Loratadine (Claritin) Dose Table. St. Louis Children's Hospital (Schmitt Pediatric Guidelines). Checked 2026-09-25.
  21. Children’s Allegra Allergy (fexofenadine HCl 30 mg/5 mL): Drug Facts. Chattem, label via DailyMed (updated 13 Jan 2026). Checked 2026-09-25.
  22. Melatonin Use in Pediatrics: A Clinical Review on Indications, Multisystem Effects, and Toxicity (Shenoy et al.). Children (Basel), 2024 (PMC10968776). Checked 2026-09-25.
  23. Pediatric Vital Signs Reference Chart (Novak, Gill; edited 2020), citing PALS Guidelines 2015 and CPS 2015. PedsCases. Checked 2026-09-25.
  24. Normal ranges of heart rate and respiratory rate in children from birth to 18 years of age: a systematic review (Fleming et al.). Lancet 2011;377(9770):1011-1018. Checked 2026-09-25.
  25. Simplified calculation of body-surface area (Mosteller). N Engl J Med 1987;317(17):1098. Checked 2026-09-25.
  26. Geometric method for measuring body surface area: a height-weight formula validated in infants, children, and adults (Haycock et al.). J Pediatr 1978;93(1):62-66. Checked 2026-09-25.
  27. A formula to estimate the approximate surface area if height and weight be known (Du Bois & Du Bois, 1916; reprinted 1989). Arch Intern Med 1916;17:863-871; Nutrition 1989;5:303-311. Checked 2026-09-25.
  28. The maintenance need for water in parenteral fluid therapy (Holliday, Segar). Pediatrics 1957;19(5):823-832. Checked 2026-09-25.
  29. Clinical Practice Guideline: Maintenance Intravenous Fluids in Children (Feld et al.). American Academy of Pediatrics, Pediatrics 2018;142(6):e20183083. Checked 2026-09-25.
  30. Young’s Rule (Wade, Martinez). StatPearls Publishing, 2023 (NBK554603). Checked 2026-09-25.
  31. CDC growth chart data files (LMS parameters), ages 2-20 years. Centers for Disease Control and Prevention, NCHS. Checked 2026-09-25.
  32. WHO Growth Standards are recommended for use in the U.S. for infants and children 0 to 2 years of age. Centers for Disease Control and Prevention. Checked 2026-09-25.
  33. When to Call the Pediatrician: Fever. American Academy of Pediatrics, HealthyChildren.org (updated 2 Dec 2022). Checked 2026-09-25.
  34. Evaluation and Management of Well-Appearing Febrile Infants 8 to 60 Days Old (Pantell et al.). American Academy of Pediatrics, Pediatrics 2021;148(2):e2021052228. Checked 2026-09-25.
  35. Poison Help: 1-800-222-1222, available 24/7 in over 100 languages. Health Resources and Services Administration (HRSA), U.S. Department of Health and Human Services. Checked 2026-09-25.
  36. Tamiflu (oseltamivir phosphate) prescribing information: Dosage and Administration, Dosage Forms. U.S. FDA label via DailyMed (Genentech). Checked 2026-09-25.
  37. MiraLAX (polyethylene glycol 3350): Drug Facts. Bayer HealthCare, label via DailyMed. Checked 2026-09-25.
  38. AAP Guideline on the Diagnosis and Management of Acute Otitis Media (practice guideline summary). American Family Physician 2013;88(7):435-440. Checked 2026-09-25.
  39. Drug Facts label on the package. Manufacturer, U.S. OTC Drug Facts. Checked 2026-09-18.