Distance from Key Largo, FL to Marathon, FL is 47Miles or 76 Km. You can get this distance about 1 hour 3 mins. If you want to planning travel with plane for 46 Miles or 73 Km, You can get this distance about 35 mins .
A car with an average MPG will needs 2.18 gallons of gas to get the route between these points.
The estimated cost of gas to get between Key Largo, FL and Marathon, FL is $4.95.
During the route, an average car will release 42.71 pounds of CO2 to the atmosphere. Your carbon footprint is 0.91 pounds of CO2 per mile.
* Average US MPG used for calculations is 21.6 MPG.
* Average US gas price used for calculation is 2.27 per gallon.