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.
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.
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.
|GPS Coordinates||40°0'54"N 105°16'14"W|
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.
|GPS Coordinates||40°10'2"N 105°6'7"W|
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 19:06:30.
|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|
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 $2.13 (diesel $2.45).
Colorado gas prices.
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 $3.858 (Diesel $4.441) /gallon. Last changed prices on October 03, 2023.
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.