CNG route planner

Enter where you are starting and where you are going. The map draws the route and marks every public CNG station within a few miles of it, using the same DOE database as the rest of this site.

Loading the route planner

Route tool by the U.S. DOE Alternative Fuels Data Center. Set the distance-from-route slider to match how far off the highway you are willing to go.

Before you commit to a lane

Check the fill type. Public stations are nearly all quick-fill, but a few fleet-hosted sites are time-fill only, which means hours on a hose, not minutes. The corridor tables mark them.
Check the vehicle class. A "Class 8 OK" badge means the DOE record says the site can take a heavy-duty tractor. Sites marked light-duty may have canopy heights or lot layouts that a trailer cannot clear.
Check pressure. Modern vehicles fill at 3,600 psi. A 3,000 psi-only station will fill a 3,600 psi tank to roughly 80 percent. The badge shows which pressures the station dispenses.
Check hours and cards. Most sites are 24 hours and take Visa or Mastercard, but utility-hosted stations sometimes close with the office or take only a network card. Every listing shows both.
Call ahead on the long gaps. A DOE listing means the station exists and is in service; it does not mean the compressor is running this minute. On the stretches the corridor pages flag as the longest gap, a phone call is cheap insurance.

Corridor lists

Already ordered by mile, with the longest gap between CNG fills on each interstate.

Range arithmetic

A Class 8 tractor with a back-of-cab CNG package holds roughly 100 to 175 diesel gallon equivalents (DGE) and burns around 5 to 6 miles per DGE at highway speed, so a full package is good for 500 to 900 miles. A light-duty vehicle such as a Civic GX carries about 8 GGE, roughly 200 to 250 miles. Plan fills at 70 to 80 percent of that, because a warm tank or a busy station means a partial fill. The fueling guide explains why.