1. Dimensional Analysis Math technique used for conversion problems.
Factor Label Method
Dimensional Analysis
Math technique used for conversion problems.

2. Factor Label Method Not the same as the proportion technique.
More powerful in multistep problems.
In the factor-label method, you use a conversion factor to express the quantity in the desired units.
Set up your calculation so the units cancel out.

3. Factor Label Method
If you have 8 dozen eggs, how many eggs do you have?
 That’s the given information.
8 Doz eggs X 12 eggs = 96 eggs
1 Doz eggs  That’s the answer
That’s the conversion factor.

4. Another Example of the Factor-Label Method
How many quarts are in 3.5 gallons?
Equality you know: 1 gallon = 4 quarts.
Format = Given X Conversion Factor = Ans
Conversion Factor is a fraction built from the equalities. You put it together so the units cancel out. The value of the fraction is “one.”

5. Gallons to Quarts 3.5 Gallons X 4 Quarts = 14 Quarts 1 Gallon
Identify the given, the conversion factor, and the answer.

6. Conversion factors
Write conversion factors with the following relationships:
100 centimeters = 1 meter
1 dozen = 12
3 feet = 1 yard
5280 feet = 1 mile
1 km = .621 miles

7. Practice Problems
How many liters are in milliliters?

8. Practice Problem
9.85 meters are equal to how many centimeters?