Vehicle-specific route answer
Philadelphia to Washington fuel cost in a 2024 Honda Civic 4Dr
Exact EPA configuration #47068, current road distance, and the regular-gasoline price assigned to Philadelphia, PA.
Driving the 2024 Honda Civic 4Dr from Philadelphia to Washington costs about $15.97 one way and $31.94 round trip in regular gasoline.This is a deterministic fuel-only answer for the dated inputs below. Tolls, parking, traffic/idling, and station-level price variation are excluded.
Road distance141.7 mi
Baseline time3 hr 9 min
EPA combined MPG36.3152
Gasoline used3.90 gal
Reproducible calculation
| Input | Exact value used | Source boundary |
|---|---|---|
| Road distance | 141.6555 miles | OSRM route retrieved 2026-08-24 |
| Vehicle efficiency | 36.3152 combined MPG | EPA record #47068 |
| Regular gasoline | $4.094 per gallon | EIA Central Atlantic (PADD 1B), week ending 2026-08-24 |
| One-way result | $15.97 | 141.6555 ÷ 36.3152 × $4.094 |
Primary evidence
- EPA/DOE FuelEconomy.gov record #47068 for 2024 Honda Civic 4Dr. The page uses the official unrounded combined MPG.
- U.S. EIA weekly gasoline series: $4.094/gal, Central Atlantic (PADD 1B), week ending 2026-08-24.
- OSRM route service with OpenStreetMap road data. Census representative points identify both endpoints.
- Full DriveCostCheck vehicle record and editable annual-cost calculator.