Distance from Rockford, IL to Longmont, CO

Driving distance from Rockford, IL to Longmont, CO is 961 miles (1546 km). How far is it from Rockford, IL to Longmont, CO? It's a 15 hours 49 minutes drive by car. Flight distance is approximately 843 miles (1357 km) and flight time from Rockford, IL to Longmont, CO is 01 hours 41 minutes. Don't forget to check out our "Gas cost calculator" option. It will calculate cost of driving this particular distance. See the map below for the visual display of the upcoming road trip.

Driving distance
961 Miles
/
1546 Km
Driving distance
Gas consumption
38.44 Gallons
146.87 Litres
Gas consumption
Flight distance
843 Miles
/
1357 Km
Flight distance

How far is it from Rockford, IL to Longmont, CO?

To travel the distance from Rockford, IL to Longmont, CO, please, click on the map to see the route for the journey. "Gas Cost Calculator" tool is to your right. You can always modify it and make the number more applicable for your journey.

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Last distance calculations