How far is Boulder, CO from Longmont, CO?

Distance by Flight

Shortest distance between Boulder and Longmont is 13.79 miles (22.19 km).

Flight distance from Boulder, CO to Longmont, CO is 13.79 miles. Estimated flight time is 00 hours 01 minutes.

Driving distance

The driving distance from Boulder, Colorado to Longmont, Colorado is: 15.62 miles (25.13 km) by car.

Driving from Boulder to Longmont will take approximately 00 hours 25 minutes.

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#1 Boulder

The most populous city in Boulder County, Colorado. It is located in the foothills of the Rocky Mountains. Boulder is known for its many colleges and universities, its many parks and green spaces, and its many attractions, such as the University of Colorado Boulder and the Boulder Creek Path.

Population 107645
GPS Coordinates 40°0'54"N 105°16'14"W
Latitude 40.0149900
Longitude -105.2705500
Altitude 1624
Country United States
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#2 Longmont

The most populous city in Boulder County, Colorado. It is located in the northern part of the county. Longmont is known for its many parks and green spaces, its many historical sites, and its many attractions, such as the Longmont Museum and the Longmont Civic Center.

Population 98445
GPS Coordinates 40°10'2"N 105°6'7"W
Latitude 40.1672100
Longitude -105.1019300
Altitude 1519
Country United States

Estimated Travel Time Between Boulder and Longmont

The distance between Boulder and Longmont is 25 km if you choose to drive by road. You can go 00 hours 16 minutes if you drive your car at an average speed of 90 kilometers / hour. For different choices, please review the avg. speed travel time table on the below.

There is no time difference between Boulder and Longmont. The current time is 07:15:22.

Average Speed Travel Time
30 mph (48.3 km/h) 00 hours 31 minutes
40 mph (64.37 km/h) 00 hours 23 minutes
50 mph (80.47 km/h) 00 hours 18 minutes
60 mph (96.56 km/h) 00 hours 15 minutes
70 mph (112.65 km/h) 00 hours 13 minutes
75 mph (120.7 km/h) 00 hours 12 minutes
80 mph (128.75 km/h) 00 hours 11 minutes

Gas Consumption

A car with a fuel efficiency of 8.3 l/100 km will need 2.09 liters (0.55 gallon) of gas to cover the route between Boulder and Longmont.
The estimated cost of gas to go from Boulder to Longmont is $2.01 (diesel $2.61).

Colorado gas prices.

Gasoline Mid Grade Premium Diesel
Gallon $3.64 $4.03 $4.33 $4.74
Total $2.01 $2.22 $2.38 $2.61

Take a look at our Gas Cost Calculator feature. It will figure out how much it will cost to drive this particular distance.

The average gas price (in Colorado ) per gallon of daily gas for calculations is $3.640 (Diesel $4.737) /gallon. Last changed prices on March 29, 2024.

How did we calculate the distance?

The place names are translated into coordinates to approximate the distance between Boulder and Longmont (latitude and longitude). Cities, states, and countries each have their own regional center. The Haversine formula is used to measure the radius.

Distance to Other Cities

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Driving distance from Arvada, CO to Boulder 20.88 miles (34 km)

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Driving distance from Aurora, CO to Boulder 34.8 miles (56 km)

Driving distance from Broomfield, CO to Boulder 13.08 miles (21 km)

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Driving distance from Castle Rock, CO to Boulder 57.25 miles (92 km)

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Driving distance from Centennial, CO to Boulder 42.62 miles (69 km)

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Driving distance from Colorado Springs, CO to Boulder 97.32 miles (157 km)

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Driving distance from Commerce City, CO to Boulder 25.75 miles (41 km)

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Driving distance from Denver, CO to Boulder 27.88 miles (45 km)

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Driving distance from Grand Junction, CO to Boulder 254.92 miles (410 km)

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Driving distance from Lakewood, CO to Boulder 34.36 miles (55 km)

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Driving distance from Parker, CO to Boulder 63.05 miles (101 km)

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Driving distance from Pueblo, CO to Boulder 140.86 miles (227 km)

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