Origin
Boulder, CO
Evening in Boulder on Sunday
Local time
5:14 PM
MDT
Current temp
40°F
Unavailable
Live forecast
Trip from Boulder, CO to Denver, CO
Drive Time
40m
Distance
27.9 mi
45 km
Drive Score
7/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$4
one way
EV Charging
Loading...
station data
Best Time to Leave
4 AM
0h 37m
★
6 AM
0h 40m
8 AM
0h 47m
10 AM
0h 43m
12 PM
0h 42m
3 PM
0h 43m
5 PM
0h 47m
8 PM
0h 38m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Boulder, CO
Dmitriy Piskarev
Denver, CO
MINEIA MARTINS
Trip Overview
Traveling between Boulder and Denver is a quick, straightforward journey covering 27.9 miles. You can expect a drive time of approximately 40 minutes, making this an ideal day trip that requires no overnight stops. Your route primarily utilizes the Denver–Boulder Turnpike, North Valley Highway, and North Broadway. With an estimated fuel cost of only $4, it is an incredibly economical transit within the Mountain West region. Because both cities are located within Colorado, you will remain in the same geographic region for the duration of your trip. Whether you are commuting or heading out for a day of exploration, this is a highly efficient connection.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
0 planned breaks
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
13.9 miles from Boulder, CO
A natural place for your longest stop of the day , about 18m into the drive .
Drive Character
This trip is a highway-focused drive, with 72% of the total distance spent on major thoroughfares. You will experience a significant, uninterrupted stretch of 19.7 miles while navigating the Denver–Boulder Turnpike. The road maintains a consistent, fast-paced character, shifting from the open feel of the turnpike into the more structured North Valley Highway and North Broadway as you approach your destination. It is a functional, direct path rather than a scenic, winding backroad experience. Staying focused is key, as the high-speed nature of the route keeps you moving steadily toward your arrival.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 25 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Denver–Boulder Turnpike is the longest continuous segment at about 19.7 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on Denver–Boulder Turnpike and North Valley Highway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes early in the drive near Arapahoe Avenue.
Route Complexity
9/10
High effort - long or complex enough to need steady focus all day
This is a demanding drive. With 20 significant decision points across 27.9 miles, you will need to stay alert — especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: near the start (Arapahoe Avenue): Lane positioning matters here; at 20 miles (US 36 / Denver–Boulder Turnpike): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 24.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 20 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
6
0 mi into trip
|
~0m in
|
Arapahoe Avenue
Turn left onto Arapahoe Avenue
Lane positioning matters here
Use the left / straight / right lanes.
8
20 mi into trip
|
~25m in
|
US 36 / Denver–Boulder Turnpike
Keep slight right at fork onto US 36 / Denver–Boulder Turnpike toward I 25: Denver, Fort Collins
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the none lane.
Toward I 25: Denver, Fort Collins
8
24.8 mi into trip
|
~31m in
Take the exit toward 38th Avenue, Park Avenue, Downtown
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 213
Toward 38th Avenue, Park Avenue, Downtown
9
25.1 mi into trip
|
~32m in
Keep slight left at fork toward Park Avenue, Downtown
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight left / slight right lanes.
Toward Park Avenue, Downtown
7
27.8 mi into trip
|
~39m in
Turn left
Lane positioning matters here
Use the straight / left lanes.
Towns Along This Route
Between Boulder, CO and Denver, CO, road signs point toward Fort Collins and Downtown.
Fort Collins
20 mi in
|
~25m
|
via US 36
Downtown
24.8 mi in
|
~31m
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Denver–Boulder Turnpike | 19.7 mi | 23m |
| North Valley Highway | 2.8 mi | 3m |
| North Broadway | 1 mi | 3m |
| 28th Street | 0.8 mi | 1m |
| Park Avenue | 0.6 mi | 1m |
| Arapahoe Avenue | 0.6 mi | 1m |
| Park Avenue West | 0.5 mi | 1m |
| West 22nd Street | 0.4 mi | 1m |
Longest stretch:
Denver–Boulder Turnpike
— 19.7 mi, about 23m
Turn-by-Turn Driving Directions
Step-by-step road directions between Boulder, CO and Denver, CO.
1
Start on this road
87 ft
·
6 sec
·
this road
2
Turn right onto 19th Street
143 ft
·
13 sec
·
19th Street
3
Turn left onto Arapahoe Avenue
0.6 mi
·
1 min
·
Arapahoe Avenue
Use the left / straight / right lanes.
4
Turn right onto US 36
0.8 mi
·
1 min
·
28th Street
Use the none lane.
5
Turn straight onto US 36
3.4 mi
·
4 min
·
Denver–Boulder Turnpike
Use the none / straight / slight right lanes.
6
Keep slight right at fork onto US 36
1.7 mi
·
1 min
·
Denver–Boulder Turnpike
Use the none lane.
7
Keep slight right at fork onto US 36
2.6 mi
·
3 min
·
Denver–Boulder Turnpike
Use the none lane.
8
Keep slight right at fork onto US 36
2.4 mi
·
2 min
·
Denver–Boulder Turnpike
Use the none lane.
9
Keep slight right at fork onto US 36
2.2 mi
·
2 min
·
Denver–Boulder Turnpike
Use the none lane.
10
Keep slight right at fork onto US 36
1.9 mi
·
2 min
·
Denver–Boulder Turnpike
Use the none lane.
11
Keep slight right at fork onto US 36
2.5 mi
·
2 min
·
Denver–Boulder Turnpike
Use the none lane.
12
Keep slight right at fork onto US 36
2.0 mi
·
2 min
·
Denver–Boulder Turnpike
Use the none lane.
13
Keep slight right at fork onto US 36
1.1 mi
·
1 min
·
Denver–Boulder Turnpike
Toward I 25: Denver, Fort Collins
Use the none lane.
14
Take the exit
0.5 mi
·
47 sec
Toward I 25 south: Denver
Use the straight / slight right lanes.
15
Continue on I 25
0.4 mi
·
33 sec
·
I 25
Toward I 25 south: Denver
16
Merge onto I 25; US 87
2.8 mi
·
3 min
·
North Valley Highway
Use the none / straight / slight right lanes.
17
Take the exit
0.3 mi
·
28 sec
Exit 213
Toward 38th Avenue, Park Avenue, Downtown
Use the straight / slight right lanes.
18
Keep slight left at fork
0.1 mi
·
11 sec
Toward Park Avenue, Downtown
Use the slight left / slight right lanes.
19
Continue on Park Avenue
0.6 mi
·
1 min
·
Park Avenue
20
Turn straight onto Park Avenue West
0.5 mi
·
1 min
·
Park Avenue West
Use the none lane.
21
Continue on West 22nd Street
0.4 mi
·
1 min
·
West 22nd Street
Use the none lane.
22
Turn right onto North Broadway
1.0 mi
·
3 min
·
North Broadway
Use the none lane.
23
Turn left onto East 14th Avenue
0.1 mi
·
29 sec
·
East 14th Avenue
Use the left lane.
24
Turn left
358 ft
·
27 sec
Use the straight / left lanes.
25
Arrive at destination
Trip Plan
Since this is a short 40-minute drive, you have plenty of flexibility to plan your departure around your personal schedule. You will not need to factor in any planned stops along the way, allowing you to complete the journey in one go. Keep in mind that traffic patterns on the Denver–Boulder Turnpike can vary, so checking real-time conditions before you head out is a smart move. Because the fuel budget is a modest $4, you can easily manage your travel expenses without extra planning. Take advantage of the route's brevity by keeping your vehicle prepared for a swift, non-stop transit between these two major Colorado hubs.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
You can normally do this drive in one day.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 13.9 miles from Boulder, CO, or about 18m into the drive.
The longest continuous stretch on this route runs about 19.7 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 27.9 miles or 40m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 13.9 miles or 18m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 30m
Traffic, exits, and arrival timing usually matter more near Denver, CO than in the middle of the route.
Before You Leave
+
Open the route before leaving Boulder, CO so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Boulder, CO
This is one driving day of about 27.9 miles and 40m.
Your first comfortable stop window is around 80 miles from Boulder, CO.
This route can stay practical as a one-day drive if traffic stays reasonable.
You may only need one short stretch stop if conditions stay smooth.
The longest stretch is on Denver–Boulder Turnpike for about 19.7 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 13.9 mi from Boulder, CO · 18m into the drive
Mid-route town
Meal stop
14 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.
Pacing Suggestions
Fuel and coffee
A short stop after about 27.9 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 13.9 miles from Boulder, CO, which is a good place for a longer meal and fuel stop.
Arriving in Denver, CO
The final approach into Denver, CO usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Denver, CO.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$4.23 one way
$8.46 round trip
$3.85/gal
25.4 MPG avg
10 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.08 | $4.49 | $8.97 |
| premium | $4.43 | $4.87 | $9.74 |
| diesel | $5.64 | $6.20 | $12.40 |
Estimated Tolls: $1.38
Denver–Boulder Turnpike
(19.7 mi)
$1.38
Toll estimates based on average 2024-2025 rates. EZ-Pass/SunPass discounts may lower the actual cost.
Estimated Trip Cost (one way, 1 person)
Fuel
$4
Tolls
$1
Meals
$25–$50
Total
$31–$56
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 9.8 kg one way. Prices: EIA weekly data, 2026-04-06.
Driving Electric?
About $3 in charging · 0 stops · 70% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 8.4 | 0 | $2.93 | $1.34 |
| Efficient EV | 7 | 0 | $2.44 | $1.12 |
| EV Truck/SUV | 11.2 | 0 | $3.91 | $1.79 |
Gas CO2
10 kg
EV CO2
3 kg (70% 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.
Travel Intel
Current conditions at both ends of the drive.
Destination
Denver, CO
Evening in Denver on Sunday
Local time
5:14 PM
MDT
Current temp
66°F
Unavailable
Live forecast
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
26 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
40m on the road
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.
Frequently Asked Questions
The drive from Boulder, CO to Denver, CO covers 27.9 miles and takes about 40m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Denver–Boulder Turnpike, North Valley Highway, North Broadway. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 13.9 miles from Boulder, CO. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $4.23 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.
This is a demanding drive. With 20 significant decision points across 27.9 miles, you will need to stay alert — especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
The main spots that need attention: near the start (Arapahoe Avenue): Lane positioning matters here; at 20 miles (US 36 / Denver–Boulder Turnpike): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 24.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Between Boulder, CO and Denver, CO, road signs point toward Fort Collins and Downtown.
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