# Question #4fdc7

Apr 3, 2014

You convert gallons to litres and then to millilitres.

I will use Imperial gallons. (The conversion factor for US gallons is 1 US gal = 3.785 L).

EXAMPLE:

Convert 10.0 gallons to millilitres.

10.0 gal × $\frac{4.546 L}{1 g a l}$ = 45.5 L

45.5 L × $\frac{1000 m L}{1 L}$ = 45 500 mL = 4.55 × 10⁴ mL

Notice how we set up the conversion factors to make the units cancel.