Mathematics - TEAS Study Guide | Nurse.org
Menu
🎬
Watch First β€” Unit Conversions - Organic Chemistry Tutor

Start with this short video, then scroll down for the full guide.

via Organic Chemistry Tutor Watch on YouTube β†’

Unit Conversions – Volume/Capacity

Why This Matters for Nursing: IV fluids in liters, medications in milliliters, intake measured in ouncesβ€”nurses constantly convert between volume units. A single error can mean giving a patient 10x too much or too little fluid.

What You Need to Know

Metric Volume

Conversion Factor
1 liter (L) = 1,000 milliliters (mL)
1 mL = 1 cc (cubic centimeter)

US Customary Volume

Conversion Factor
1 cup = 8 fluid ounces (fl oz)
1 pint = 2 cups = 16 fl oz
1 quart = 2 pints = 32 fl oz
1 gallon = 4 quarts = 128 fl oz

US to Metric (Healthcare Key!)

Conversion Factor
1 fl oz β‰ˆ 30 mL
1 cup β‰ˆ 240 mL
1 liter β‰ˆ 33.8 fl oz
1 teaspoon (tsp) = 5 mL
1 tablespoon (tbsp) = 15 mL
Volume Conversion Ladder 1 tsp = 5 mL Γ— 3 ↓ 1 tbsp = 15 mL Γ— 2 ↓ 1 fl oz β‰ˆ 30 mL Γ— 8 ↓ 1 cup = 8 fl oz β‰ˆ 240 mL 1 Liter = 1,000 mL β‰ˆ 33.8 fl oz mL = cc (identical!)

🧠 Memory Trick

"30 mL = 1 ounce" β€” This is the most important conversion in healthcare!

Cup of coffee = 240 mL = 8 oz (easy to remember)

Teaspoon = 5 mL (common medication dosing)

mL = cc β€” They're identical! (1 mL = 1 cubic centimeter)


✏️ Worked Examples

Example 1: Liters to Milliliters

Problem: Convert 2.5 L to mL.

Step 1 β€” Identify the direction. Liters (large) to milliliters (small) β†’ multiply.

Step 2 β€” Use the conversion. 1 L = 1,000 mL.

Step 3 β€” Multiply. 2.5 Γ— 1,000 = 2,500 mL.

Answer: 2,500 mL


Example 2: Step-by-Step Solution

To solve this type of problem, start by identifying the key values given in the question. Then apply the formula we covered above...

Step 1: Convert the mixed number to an improper fraction...

Step 2: Find the common denominator between the two fractions...

Keep reading β€” there's more to this guide

The worked examples and practice problems are the part that actually prepares you for the TEAS.

Unlock Full Guide β€” Free for 3 Days

$0 today β€’ Cancel anytime before your trial ends

πŸ€– AI Tutor

Loading...

πŸ‘‹ Hi! I'm your TEAS Tutor

Ask me anything about Math, Reading, Science, or English!

πŸ“ How do I convert fractions to decimals?
πŸ”¬ Explain arteries vs veins
✏️ What are the parts of speech?

Wait! Grab your free cheat sheet

Get the essential TEAS formulas, conversions, and must-know facts in one printable PDF.

πŸ“‹ FREE: TEAS Quick Reference Cheat Sheet

βœ“ Check your inbox! Your cheat sheet is on its way.

No spam. Unsubscribe anytime.