Welcome to Med Calc

for Nurses!

   Systems of Measurement      Conversions     Oral Dosages   Parenteral Dosages     

 Intake and Output   Critical care IV 

IV Flow Rates   Dose by Weight   Tube Feeding   Links

Take a look around by clicking on the topics above to learn more about dosage calculations and see a variety of common medication calculations. Click on the quiz number to take sample quizzes to assess your skills.

This web site is designed for nursing students and any health care providers desiring to learn more about medication calculations and practice a variety of clinical dosage calculations.  This site teaches dosage calculations based on Dimensional Analysis.

Basic Guidelines  for Rounding 

Round capsules and drops to  Whole Numbers Parts of capsules and drops cannot be administered
Round injectable medications less than 1 mL to Hundredths Use a Tuberculin syringe which is calibrated in hundredths
Round injectable medications more than 1 mL to   Tenths Use a 3cc or larger syringe which is calibrated in tenths 
Always round at end of problem and not while working the problem The smaller the number the more decimal places should be carried...hundredths place is a general guideline

Guidelines  for Rounding Critical Care Meds

Critical care medications are usually administered via pump or controller If pump can be set to administer meds to the hundredths' place, carry the problem to the thousandths and round to the hundredths
The smaller the number the more important it becomes to not round too soon This is especially true for pediatric patients

Practice Quizzes (click on quiz you would like to take)

Quiz 1   Quiz 2   Quiz 3   Quiz 4   Quiz 5   Quiz 6   Quiz 7   Quiz 8  

Quiz 9     Quiz 10     Quiz 11      Quiz 12 - Intake and Output


This site was first developed by B. Clark, MS, RN and is maintained by  Connie Houser, MSN, RNC-OB, CNE Associate Degree Nursing Instructor at Central Carolina Technical College, Sumter, SC.   You can view the CCTC College Web Site for more information about programs at: http://www.cctech.edu

Your input is important!  If you have suggestions for this site, problems, additional content that would be useful to you, please let us know!

To E-mail Connie: housercl@cctech.edu

 Revised January, 2009.

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Nursing Dosage Calculations at http://home.roadrunner.com/~nurdosagecal/ is licensed under a

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