Appendix D

Cost per Person Mile

  1. Divide one mile by passenger mpg. This is passenger gallons per mile (gpm).
  2. Multiply gpm by the cost of one gallon of gas. *
    Passengers per Car Miles/Gallon Gallons/Mile Price of One Gallon Gas Cost/Mile **
    1 26 0.0384 $1.50 $0.057
    2 52 0.0192 $1.50 $0.028
    3 78 0.0128 $1.50 $0.024

* This number is provided for simplicity in calculations. Insert current price.

** Note the cost decreases as the number of passengers increases.