Origin
Longmont, CO
Late night in Longmont on Tuesday
Local time
2:31 AM
MDT
Current temp
54°F
Unavailable
Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 21, 2026 · Editorial standards
Drive Time
1h 9m
Distance
49.7 mi
80 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$7
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
Ken Caryl, CO
RDNE Stock project
Traveling from Longmont to Ken Caryl covers 49.7 miles and typically takes about 1 hour and 9 minutes of driving time. Since this trek is easily manageable in a single day, you won't need to worry about overnight logistics or mid-route accommodations. You can expect to spend approximately $8 on fuel for the journey, making this a budget-friendly option for your schedule. The route primarily utilizes 5th Avenue, Main Street, and US 36 East to navigate through the Mountain West. Because this is a turn-heavy local drive, it is best viewed as a straightforward transit between two Colorado communities rather than a leisurely road trip. Its simplicity provides you with a reliable way to get from point A to point B without any complex travel planning.
| Road | Distance | Duration |
|---|---|---|
| Main Street | 17.3 mi | 25m |
| CO 470 | 9.7 mi | 11m |
| I 70 | 8.7 mi | 9m |
| Sheridan Boulevard | 4.3 mi | 7m |
| Denver–Boulder Turnpike | 3.9 mi | 4m |
| West Ken Caryl Avenue | 1.6 mi | 3m |
| Heartland Expressway | 1.3 mi | 1m |
| CO 121 | 0.5 mi | 1m |
Step-by-step road directions between Longmont, CO and Ken Caryl, 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
Take the exit
Turn right onto CO 95
Take the ramp
Merge onto I 76
Merge onto I 70
Take the exit
Merge onto CO 470
Take the exit
Turn left onto CR 54
Turn right onto CR 58
Turn left onto South Sangre de Cristo Road
Turn right onto South Cottonwood Mountain
Arrive at destination
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
25 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
A short stop after about 11 miles helps settle the day before fatigue starts building.
The midpoint is around 24.9 miles from Longmont, CO, which is a good place for a longer meal and fuel stop.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
5 decision points cluster between mile 17.9 and 47.4 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
Turn left toward US 36 East: Denver
Lane positioning matters here
Take the exit toward CO 95 South: Sheridan Boulevard
Exit ramp - move to the correct lane early. Lane positioning matters here
Turn right onto CO 95 / Sheridan Boulevard
Lane positioning matters here
Take the exit toward CO 470 East: Colorado Springs
Exit ramp - move to the correct lane early. Lane positioning matters here
Take the exit toward Ken Caryl Avenue
Exit ramp - move to the correct lane early. Lane positioning matters here
Regular Gas
$7.49 one way
$14.98 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.05 | $7.93 | $15.86 |
| premium | $4.39 | $8.60 | $17.20 |
| diesel | $5.61 | $10.97 | $21.95 |
Estimated Tolls: $0.27
Toll estimates based on average 2024-2025 rates. EZ-Pass/SunPass discounts may lower the actual cost.
Drive Cost (one way)
Fuel
$7
Tolls
$0
Total
$8
Estimated CO2 emission: 17.4 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $5 in charging · 0 stops · 65% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 14.9 | 0 | $5.22 | $2.39 |
| Efficient EV | 12.4 | 0 | $4.35 | $1.99 |
| EV Truck/SUV | 19.9 | 0 | $6.96 | $3.18 |
Gas CO2
17 kg
EV CO2
6 kg (65% 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
Late night in Longmont on Tuesday
Local time
2:31 AM
MDT
Current temp
54°F
Unavailable
Destination
Late night in Ken Caryl on Tuesday
Local time
2:31 AM
MDT
Current temp
32°F
Unavailable
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
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Expect a turn-heavy local driving experience that keeps you engaged behind the wheel. Unlike a monotonous interstate slog, this 49.7-mile path relies on local roads rather than high-speed highway stretches, which make up 0% of the total journey. You will navigate through various turns as you transition between 5th Avenue, Main Street, and US 36 East. The lack of a long, uninterrupted highway stretch means you should be prepared for frequent maneuvering throughout the 1 hour and 9 minute duration. It is a practical, hands-on drive that requires your full attention as you move through the local terrain.
This route mixes highway mileage with some local-road sections near the start or finish. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 17.9 miles in.
Demanding - stay alert through the decision-heavy sections
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 49.7 miles you will encounter 18 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: at 17.9 miles: Lane positioning matters here; at 22.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 22.4 miles (CO 95 / Sheridan Boulevard): 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 1h 9m. Total distance: 49.7 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
1h 9m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (49%). Some complex stretches to watch for.
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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