TEAS Formula & Conversions

Percent Formula

percent = part ÷ whole.

Find the Part

part = percent × whole.

Find the Whole

whole = part ÷ percent.

Percent Increase

(new - old) ÷ old.

Percent Decrease

(old - new) ÷ old.

Simple Interest

I = P × R × T.

Distance Formula

Distance = Rate × Time.

Rate Formula

Rate = Distance ÷ Time.

Time Formula

Time = Distance ÷ Rate.

Mean

Add all values and divide by number of values.

Median

Middle value when numbers are ordered.

Mode

Most frequently occurring number.

Range

Maximum minus minimum.

Area of Rectangle

length × width.

Perimeter of Rectangle

2L + 2W.

Area of Triangle

1/2 × base × height.

Area of Circle

πr².

Circumference of Circle

2πr.

Volume of Rectangular Prism

length × width × height.

Metric Conversion: L to mL

1 L = 1000 mL.

Metric Conversion: g to mg

1 g = 1000 mg.

Metric Conversion: m to cm

1 m = 100 cm.

Kilograms to Pounds

1 kg = 2.2 lb.

Household Conversion: Teaspoon

1 tsp = 5 mL.

Household Conversion: Tablespoon

1 tbsp = 15 mL.

Household Conversion: Ounce

1 oz = 30 mL.

Household Conversion: Cup

1 cup = 240 mL.

Temperature Conversion (F to C)

C = (F - 32) × 5/9.

Temperature Conversion (C to F)

F = (C × 9/5) + 32.

Scientific Notation

Move decimal right for positive exponent, left for negative.

Dimensional Analysis

Multiply by conversion ratios and cancel units.

Cardiac Output

CO = Stroke Volume × Heart Rate.

Mean Arterial Pressure

MAP = (SBP + 2DBP) ÷ 3.

Oxygen Transport

Oxygen binds to hemoglobin.

DNA Base Pairing

A pairs with T; C pairs with G.