American Standard System of Measurement

This page discusses the American Standard System of Measurement.

Pharmacy Technicians need to be familiar with several systems of measurement to perform the everyday tasks required in a pharmacy.

The American Standard system of measurement is important because it will be the one most familiar to your customers.

And it's important to be able to explain dosage information in terms they can easily understand and recall later.

The American Standard system is also referred to as the Household system.




Volumes of liquid are measured in:

Teaspoons

Tablespoons

Fluid Ounces

Cups

Pints

Quarts

Gallons

Conversions within the Household system are as follows:

3 teaspoons = 1 tablespoon (one-half of a fluid ounce)

2 tablespoons = 1 fluid ounce

8 fluid ounces = 1 cup

2 cups = 1 pint (16 fluid ounces)

2 pints= 1 quart (32 fluid ounces)

4 quarts = 1 gallon (128 fluid ounces)



Weight is measured in:

Ounces

Pounds

There are 16 ounces to a pound.



Length is measured in:

inches

feet

yards

miles

12 inches = 1 foot

3 feet = 1 yard

1760 yards = 1 mile(5280 feet)

The most common calculations you'll need to make will be converting a metric measurement into an American standard measurement.

Kilograms into pounds or milliliters into teaspoons for example.



Here are the most common Metric to Standard conversions that you will encounter.

1 kilogram (1000 grams) = 2.2 pounds

3.8 liters (3800 milliliters) = 1 gallon

5 milliliters = 1 teaspoon

15 milliliters = 1 tablespoon

29.6 milliliters = 1 fluid ounce

It's important to memorize these conversions and also to understand which unit is larger.

This makes it easy to double check a conversion to ensure you did it correctly.

For example, we know that a kilogram weighs more than a pound.

So after converting 5 kilograms, we can look at our answer(11 pounds) and understand that it looks correct.

Teaspoons and tablespoons from milliliters is another common conversion.

Most liquids will be measured in either teaspoons or tablespoons for the customer.

So it's important to understand that when preparing and dispensing medications.

With a little practice, these conversions will become automatic. Just remember to be careful and never add a decimal place at the end of a whole number.

2 ounces for example, will never be written as 2.0 ounces. Decimal places and periods are the most common causes of mistakes in pharmacies.

So remember to take the extra time to double check every conversion you make and explain everything in simple and easy to understand language for the customer.

Top of American Standard System of Measurement

Back to Pharmacy Technician Math

Back to Home

This PREMIUM Collection of Pharmacy Tech Resources Might Just Transform YOUR Career! 

Plus... ALL the RESOURCES below:


I'd like to get this collection into the hands of as many Techs as possible, so we have lowered the price: Normally $24.99, but NOW, 65% OFF, for a LIMITED TIME ONLY.

Please use CODE: "SUMMER20" to GRAB this TIME SENSITIVE DEAL!

 


 


 

ALL Resources below are
included in this informative COLLECTION:


Volume #1
(4-Ebook & 4-Report Bundle)
PharmTech Fundamentals and More

Report: Drug Development in the US
Pharmacy Technician Settings
Latin Medical Abbreviations
Resolving Prescription Insurance Rejections:
(NOW updated with DUR Codes)

Report: Telephone Etiquette for PharmTechs
NEW Report: Cough & Cold Remedies AND Decongestants 
NEW Report: Top 200 Medications - 
Brand Name/Generic/Condition

Volume #2
(6-Ebook Bundle)

HIPPA and The PharmTech
How to Become a Pharmacist/Roadmap to RPH
Pharmacy Systems of Measurement
Pharmacy Dosage Forms
Keys to PharmTech Career Success
Time Management for PharmTechs


National Certification Bundle 
(1-Ebook & 5-Practice Test Package)

USA PharmTech Certification Demystified
Unofficial PTCB Exam Practice Test #1: Q&A

Unofficial PTCB Exam Practice Test #2:
(Exclusively MATH Q&A, with extensive answers)
Unofficial PTCB Exam Practice Test #3: Q&A
Unofficial PTCB Exam Practice Test #4: Q&A
Unofficial PTCB Exam Practice Test #5: Q&A

Rx Errors & Pharmacy Safety Package
(1-Ebook & 2-Report Bundle)

Coping With Pharmacy Errors
Report: Pharmacy Root Cause Analysis
Report: Improving Pharmacy Safety Culture

Navigating Challenging Environments Package
(1-Ebook & 2-Report Bundle)

Best Practices for the Assertive PharmTech
NEW Report: How To Cope With A Hostile Workplace

NEW Report: Managing Overwhelm At The Pharmacy

Free Bonus Ebook:
NEW: The Canadian PharmTech's Quick Start Guide

GRAB this valuable, Premium Collection NOW!

Normally $24.99, but now
**65% OFF**
 Use code "SUMMER20" to get YOUR discount!

FOR A LIMITED TIME ONLY

Pay via Paypal for IMMEDIATE Download :)

Click Buy Now to get YOUR COPY of this
Premium PharmTech Package, before this deal is gone!

Back to Home

New! Comments

Have your say about what you just read! Leave me a comment in the box below.
[?]Subscribe To This Site
  • XML RSS
  • follow us in feedly
  • Add to My Yahoo!

Recent Articles

  1. When a script is written for xanax, and it says Take 1 to 2 tablets by mouth as needed and the count is for 45 pills who decides if it is a month supply, the Dr. or pharmacist?

    Sep 21, 21 01:43 PM

    and it says Take 1 to 2 tablets by mouth as needed and the count is for 45 pills who decides if it is a month supply,the Dr or pharmacist

    Read More

  2. 2 tablets, 2X per day with a 90 day supply needed

    Sep 19, 21 07:51 PM

    How many tablets should you dispense

    Read More

  3. Menactra for Adults

    Sep 16, 21 09:33 PM

    I am an Asplinic 72 year old male with a kidney transplant and on immunosuppressants. According to CDC and Alabama Public Health I should receive Menactra

    Read More

  4. filling fiorecet with codiene 2 days early

    Sep 16, 21 09:32 PM

    is it legal to get my fiorecet with codeine filled 2 days early because we have to go out of town for funeral for a week

    Read More

  5. Explain how NSAIDs, corticosteroids and antirheumatic agents assist with RA.

    Sep 16, 21 09:31 PM

    How do NSAIDs, corticosteroids, and antirheumatic agents assist with RA?

    Read More

  6. Compound for Lidocaine 3% in 120ML Calamine Lotion-How many milligrams of lidocaine powder must be added to the calamine lotion?

    Sep 16, 21 09:30 PM

    A physician has requested a compound for lidocaine 3% in 120mL calamine lotion. How many miligrams of lidocaine powder must be added to the calamine lotion

    Read More

  7. Pharmacy calculations

    Sep 16, 21 05:47 PM

    The prescriber orders heparin sodium injection 10,000 units subcut: however, the dose on hand is 20,000 units/ml. What amount should be given?

    Read More

  8. Xanax Filled on February 23rd

    Sep 16, 21 05:40 PM

    I had my prescription for 90 Xanax 1 Tablet 3X Daily filled February 23rd When is the earliest date for my refill?

    Read More

  9. What is the Total Quantity of a penicillin suspension 250mg/5ml 10ml QID?

    Sep 16, 21 05:07 PM

    penicillin susp. 250mg/5 ml 10 ml 4 times a day

    Read More

  10. IV Calcium Gluconate 45 MEQ of D5% 1000ml from 4.4 meq/ml 50ml how many mls of this concentrated vial needs to be added to the IV bag?

    Sep 16, 21 04:58 PM

    Asked to add 45meq of Ca gluconate in an ivy bag of D5% 1000ml. I have concentrated vial of Ca Gluconate 4.4 meq/ml 5oml how many mls of this concentrated

    Read More

  11. When preparing a 25% solution, how many millilieters of diluent would you add to 10gm of powder?

    Sep 16, 21 12:59 PM

    When preparing a 25% solution, how many milliliters of diluent would you add to 10gm of powder?

    Read More

  12. math

    Sep 16, 21 12:52 PM

    How many milliliters (mL) are found in a 1.5 L bag of an intravenous solution?

    Read More

  13. Alligation

    Sep 16, 21 12:49 PM

    Rx: Coal Tar 7% Ointment 240 g You have coal tar 10% ointment and coal tar 5% ointment. How many grams of COAL TAR 5% will you use to prepare the

    Read More

  14. Units of Heparin per gram

    Sep 16, 21 12:20 PM

    If 100 mg of heparin is equivalent to 4,500 units how many grams are required to obtain one unit

    Read More

  15. Question

    Sep 16, 21 12:15 PM

    The pharmacy stocks potassium chloride 2 mEq/ml in 150 ml vials. How many ml will you need from the stock bottle to get 45 mEq of the medication

    Read More