Distance from Boulder to Castle Rock

Distance between Boulder and Castle Rock is 80 kilometers (50 miles).
Driving distance from Boulder to Castle Rock is 92 kilometers (57 miles).

80 km

50 miles

92 km

57 miles

Distance Map Between Boulder and Castle Rock

Boulder, Denver, United States ↔ Castle Rock, Denver, United States = 50 miles = 80 km.

How far is it between Boulder and Castle Rock

Boulder is located in United States with (40.015,-105.2706) coordinates and Castle Rock is located in United States with (39.3722,-104.8561) coordinates. The calculated flying distance from Boulder to Castle Rock is equal to 50 miles which is equal to 80 km.

If you want to go by car, the driving distance between Boulder and Castle Rock is 92 km. If you ride your car with an average speed of 112 kilometers/hour (70 miles/h), travel time will be 00 hours 49 minutes. Please check the avg. speed travel time table on the right for various options.
Difference between fly and go by a car is 12 km.

City/Place	Latitude and Longitude	GPS Coordinates
Boulder	40.015, -105.2706	40° 0´ 53.9640'' N 105° 16´ 13.9800'' W
Castle Rock	39.3722, -104.8561	39° 22´ 19.9560'' N 104° 51´ 21.9240'' W

Estimated Travel Time Between Boulder and Castle Rock

Average Speed	Travel Time
30 mph (48 km/h)	01 hours 55 minutes
40 mph (64 km/h)	01 hours 26 minutes
50 mph (80 km/h)	01 hours 09 minutes
60 mph (97 km/h)	00 hours 56 minutes
70 mph (112 km/h)	00 hours 49 minutes
75 mph (120 km/h)	00 hours 46 minutes

Boulder, Denver, United States

Related Distances from Boulder

Cities	Distance
Boulder to Montrose	444 km
Boulder to Golden	33 km
Boulder to Brighton 3	47 km
Boulder to Southglenn	65 km
Boulder to Highlands Ranch	75 km

Castle Rock, Denver, United States

Related Distances to Castle Rock

Cities	Distance
Canon City to Castle Rock	140 km
Broomfield to Castle Rock	74 km
Loveland to Castle Rock	128 km
Centennial to Castle Rock	25 km
Erie 2 to Castle Rock	89 km