Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 26, 2026 · Editorial standards
Drive Time
39m
Distance
26.9 mi
43 km
Drive Score
7/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$4
one way
EV Charging
Unknown
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Longmont, CO
Wikimedia Commons
Berkley, CO
Mikhail Nilov
Longmont to Berkley is 26.9 miles and takes about 39m via Main Street and Denver–Boulder Turnpike, with a fuel budget near $4 and enough daylight to finish in a day. This trip stays within Colorado and the Mountain West region, offering a straightforward drive between two nearby communities. You'll be navigating mostly surface roads, making it a convenient option for a quick commute or a short excursion. With minimal driving time and a low fuel cost, this route is an easy choice for a same-day trip.
| Road | Distance | Duration |
|---|---|---|
| Main Street | 17.3 mi | 25m |
| Denver–Boulder Turnpike | 6.2 mi | 7m |
| Federal Boulevard | 2.1 mi | 3m |
| CO 121 | 0.5 mi | 1m |
| 5th Avenue | <0.1 mi | <1m |
Step-by-step road directions between Longmont, CO and Berkley, CO.
Start on this road
Turn left onto 5th Avenue
Turn left onto US 287
Continue on CO 121
Turn left
Merge onto US 36
Keep slight right at fork onto US 36
Keep slight right at fork onto US 36
Keep slight right at fork onto US 36
Take the exit
Keep slight right at fork
Turn straight onto US 287
Arrive at destination
5 decision points cluster between mile 0 and 24.6 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
Turn left onto 5th Avenue
Navigation decision point
Turn left onto US 287 / Main Street
Lane positioning matters here
Turn left toward US 36 East: Denver
Lane positioning matters here
Take the exit toward US 287: Federal Boulevard
Exit ramp - move to the correct lane early. Lane positioning matters here
Keep slight right at fork toward US 287 South: Federal Boulevard South
Highway fork - watch signs carefully. Lane positioning matters here
Regular Gas
$4.20 one way
$8.39 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.22 | $4.47 | $8.94 |
| premium | $4.54 | $4.80 | $9.61 |
| diesel | $5.40 | $5.72 | $11.44 |
Estimated Tolls: $0.43
Toll estimates based on average 2024-2025 rates. EZ-Pass/SunPass discounts may lower the actual cost.
Drive Cost (one way)
Fuel
$4
Tolls
$0
Total
$5
Estimated CO2 emission: 9.4 kg one way. Prices: EIA weekly data, 2026-04-20.
Driving Electric?
About $3 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 8.1 | 0 | $2.82 | $1.29 |
| Efficient EV | 6.7 | 0 | $2.35 | $1.08 |
| EV Truck/SUV | 10.8 | 0 | $3.77 | $1.72 |
Gas CO2
9 kg
EV CO2
3 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Current conditions at both ends of the drive.
Origin
Evening in Longmont on Saturday
Local time
7:18 PM
MDT
Current temp
34°F
Partly Cloudy
Red Flag Warning
Red Flag Warning issued April 24 at 8:11PM MDT until April 25 at 8:00PM MDT by NWS Pueblo CO
Destination
Evening in Berkley on Saturday
Local time
7:18 PM
MDT
Current temp
36°F
Partly Cloudy
Red Flag Warning
Red Flag Warning issued April 24 at 8:11PM MDT until April 25 at 8:00PM MDT by NWS Pueblo CO
Time zone
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
This drive is primarily on surface roads, with only about 25% on highways. You'll encounter a longest stretch of 17.3 miles on Main Street before transitioning to the Denver–Boulder Turnpike and Federal Boulevard. Expect a mix of urban and suburban driving, with frequent intersections and traffic lights as you move between towns. The highway portion offers quicker travel, but be prepared for more localized traffic patterns once you're off the main thoroughfares.
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes early in the drive near 5th Avenue.
Focused - busy navigation packed into a short drive
Balances navigation complexity with total wheel time.
This is a short but busy drive. With 10 decision points packed into just 26.9 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 39m.
Where does it get tricky?
The main spots that need attention: near the start (5th Avenue): Navigation decision point; near the start (US 287 / Main Street): Lane positioning matters here; at 17.9 miles: Lane positioning matters here.
Longmont is a city of about 100,000 in North Central Colorado. The city lies in Boulder and Weld counties 30 miles (48 km) north-northwest of the Denver.
City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Weekend Trip
Doable as a same-day drive at 39m. Total distance: 26.9 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
39m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
Scenic Drive
Mostly surface roads route profile.
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, and EIA for fuel prices. See our methodology for refresh cadence and limitations.
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