MileGrade

EPA ratings · 2003 · Kia

2003 Kia Fuel Economy

EPA rated 5 Kia models for 2003. Each model page lists every trim's city, highway and combined figure and works the rating into a cost per mile at a price and mileage you set.

Models

2003 Kia models with combined rating range
ModelTrimsCombined, lowest to highest trim
Optima421–23 MPG
Rio225–26 MPG
Sedona116 MPG
Sorento215 MPG
Spectra222–24 MPG

Combined is EPA's 55% city / 45% highway blend. Electric and plug-in models show MPGe, gasoline-equivalent miles per gallon; their pages carry the kWh per 100 miles that charging cost actually turns on.

Related tools

Informational only — published averages for scale and comparison, not a quote for any pump, utility or vehicle. Your own price is the one that counts, and every calculator on this site takes it as an input.

Source: U.S. EPA and U.S. DOE, fueleconomy.gov vehicles.csv dated 2026-09-29.