Medical Calculators

Disclaimer: All calculations must be confirmed before use. The authors make no claims of the accuracy of the information contained herein; and these suggested doses are not a substitute for clinical judgement.

Integrated Dosing Calculator

• The Emergency Medications Calculator generates a table of doses for emergency medications based on patient age and weight. September 29, 2021
• The Drip Rate-Dose Table Calculator generates tables that relate infusion rates in mL/hr to dosing rates per kg per unit time. Customizable for almost any drug or concentration.
• A listing of drip medications and their standardized concentrations (Drip Medication Concentrations Table) allows users to generate one or more Drip Rate-Dose Tables quickly. For older versions, see below. Please contact the author with any issues.

Drip Medication Concentrations Table

• Current Version 5 (December 5, 2013)*. Enter patient weight and click on the concentration of the desired medication to generate tables that relate infusion rates in mL/hr to dosing rates per kg per unit time.

Conversions

• Age from Date of Birth
• Body Surface Area
• Calcium Equivalents
• Catheter Gauge-French
• Potassium Phosphate
• Unit Conversions: Temperature, Length, Weight
• Unit Conversion: Pressure

Metabolic

• Body Mass Index
• Basal Energy Expenditure: Harris-Benedict Equation
• Creatinine Clearance - Measured
• Creatinine Clearance - Schwartz Estimate
  from plasma creatinine and height
• Creatinine Clearance - Schwartz Estimate Revised
• CRRT (continuous renal replacement therapy) Clearance
• Dehydration Correction Calculator
• Fractional Excretion of Sodium (FENa)
• Glucose Infusion Rate
• Serum Osmolality - Measured

Respiratory

• Alveolar-arterial Gradient
• Alveolar Gas Equation
• Bicarbonate & Base Excess
• Oxgen Content
• Oxygenation Index
• Oxygen Saturation from pO₂
• Oxygen Tank Duration
• Peak Expiratory Flow
• Ventilation Index

Pharmacology

• Half Life - Measured
• Time to Target Level
• Estimated Steady-state Trough Level

Previous Versions of Dosing Calculators

Integrated Dosing Calculator

• Version 5* (November 15, 2012)
• Version 4* (April 16, 2006)
• Version 3* (December 15, 2004)
• Version 2* (February 14, 2001)
• Version 1* (June 8, 2000)

Fixed Concentration Medicated Infusions

• Version 4 (July 16, 2012)
• Version 3 (October 28, 2008)
• Version 2 (October 15, 2008)
• Version 1 (January 21, 2005)

Emergency Medications & Drip Rate-Dose Table Calculator*

• Emergency Medications Calculator (January 5, 2000)
• Drip Rate-Dose Table Calculators (October 3, 2000)
  Data entry not integrated. Works with versions of Netscape Navigator before 4.0.

*Please note: Compatability with your web browser is not guaranteed. Please test carefully on your system. None of the data entered here are transmitted across the Internet.

If you have not found the calculator you are looking for, go to the Off-Site Calculator page for a listing of other calculators available on the internet. Alternatively, contact me with ideas for other useful calculators.

Created: June 8, 2000
Revised: June 7, 2018