Gas Cost Per Month Calculator

Formula

The formula to calculate the gas cost per month (CGM) is:

\[ CGM = \frac{M}{MPG} \times GC \]

Where:

$ CGM $ is the gas cost per month ($/month)
$ M $ is the monthly miles driven on average
$ MPG $ is the miles per gallon of the car
$ GC $ is the average cost of gas for the month ($/gallon)

What is the Average Gas Cost Per Month?

The average American household spends about $250 per month on gasoline. That’s about $2,900 per year. If you drive a car that gets 30 miles to the gallon, then you’ll spend about $60 per week at the pump.

Example Calculation

Let's assume the following values:

Monthly Miles Driven ($ M $): 1000 miles
Miles Per Gallon ($ MPG $): 25 MPG
Cost of Gas ($ GC $): $3.50 per gallon

Step 1: Calculate the gas cost per month:

\[ CGM = \frac{1000}{25} \times 3.50 = 140 \text{ dollars} \]

Therefore, the gas cost per month is $140.