Origin
Bozeman, MT
Morning in Bozeman on Friday
Local time
8:45 AM
MDT
Current temp
64°F
Unavailable
Live forecast
Trip from Bozeman, MT to Boulder, MT
Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 17, 2026 · Editorial standards
Drive Time
1h 51m
Distance
85 mi
137 km
Drive Score
7/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$13
one way
EV Charging
Unknown
Best Time to Leave
4 AM
1h 44m
★
6 AM
1h 52m
8 AM
2h 8m
10 AM
1h 57m
12 PM
1h 56m
3 PM
1h 58m
5 PM
2h 7m
8 PM
1h 47m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Bozeman, MT
Wikimedia Commons
Boulder, MT
John De Leon
Trip Overview
This 85-mile drive from Bozeman, MT to Boulder, MT is a straightforward trip, clocking in at just under two hours. Primarily utilizing major highways, it's an easy day trip, so you won't need to worry about an overnight split. With an estimated fuel cost of around $13, it's an economical option for exploring the Mountain West region. The majority of this journey, 98%, is on highways, making it a quick and efficient route. This drive offers a practical way to travel between these two Montana towns.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Midpoint
42.5 miles from Bozeman, MT
A natural place for your longest stop of the day , about 43m into the drive .
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 1h 51m. Total distance: 85 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
1h 51m drive, comfortable solo distance.
First-Time Driver
Mostly highway driving (98%). Straightforward navigation.
Drive Character
Expect a highway-focused experience for most of this 85-mile journey. You'll be on roads like I 90 Business and MT 69, with 98% of the drive being on highways. The longest uninterrupted stretch you'll encounter is 50.3 miles on I 90 Business. While the majority of the drive is on high-speed roads, the route does incorporate some state highways, offering a slight variation in the driving experience as you progress towards Boulder. It's designed for efficiency and steady travel.
Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 9 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
I 90 Business is the longest continuous segment at about 50.3 miles.
How Hard Is This Drive?
This is a straightforward highway drive that stays mostly on I 90 Business and MT 69. Navigation is very simple - set it and forget it for most of the drive. The trickiest moment comes around 0.4 miles in near West Peach Street.
Driving Effort
1/10
Very easy - short and simple to drive
Balances navigation complexity with total wheel time.
The drive from Bozeman, MT to Boulder, MT is easy. At 1h 51m with 98% highway, most drivers will find it relaxed and low-stress.
Where does it get tricky?
The main spots that need attention: at 0.4 miles (West Peach Street): Navigation decision point; at 0.8 miles (I 90 Business / North 7th Avenue): Navigation decision point; at 51.9 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.
Critical Maneuvers
5 of 7 key pointsThese are the spots where you need to pay the most attention. Preview them before you drive.
4
0.4 mi into trip
|
~1m in
|
West Peach Street
Turn left onto West Peach Street
Navigation decision point
4
0.8 mi into trip
|
~1m in
|
I 90 Business / North 7th Avenue
Turn right onto I 90 Business / North 7th Avenue
Navigation decision point
5
51.9 mi into trip
|
~53m in
Take the exit toward MT 359: Cardwell, Boulder
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Toward MT 359: Cardwell, Boulder
4
53.4 mi into trip
|
~55m in
|
MT 69
Turn right onto MT 69
Navigation decision point
4
84.9 mi into trip
|
~1h 51m in
|
West Centennial Avenue
Turn left onto West Centennial Avenue
Navigation decision point
Main Roads
| Road | Distance | Duration |
|---|---|---|
| I 90 Business | 50.3 mi | 49m |
| MT 69 | 31.5 mi | 55m |
| MT 2 | 1.2 mi | 2m |
| North 7th Avenue | 0.9 mi | 1m |
| North Willson Avenue | 0.4 mi | 1m |
| West Peach Street | 0.4 mi | <1m |
| West Centennial Avenue | <0.1 mi | <1m |
Longest stretch:
I 90 Business
— 50.3 mi, about 49m
Turn-by-Turn Driving Directions
Step-by-step road directions between Bozeman, MT and Boulder, MT.
1
Start on North Willson Avenue
0.4 mi
·
1 min
·
North Willson Avenue
2
Turn left onto West Peach Street
0.4 mi
·
42 sec
·
West Peach Street
3
Turn right onto I 90 Business
0.9 mi
·
1 min
·
North 7th Avenue
4
Turn left onto I 90 Business
50 mi
·
49 min
·
I 90 Business
5
Take the exit
0.3 mi
·
33 sec
Toward MT 359: Cardwell, Boulder
6
Turn right onto MT 2
1.2 mi
·
2 min
·
MT 2
7
Turn right onto MT 69
32 mi
·
55 min
·
MT 69
8
Turn left onto West Centennial Avenue
408 ft
·
18 sec
·
West Centennial Avenue
9
Arrive at destination
West Centennial Avenue
Trip Plan
For this short 1 hour and 51-minute drive, flexibility is your best friend. You can easily depart Bozeman anytime, but consider leaving mid-morning to avoid early commuter traffic. Since the longest stretch is about 50 miles, you won't need frequent stops, but it’s always a good idea to take a break if you feel tired. Keep an eye on your fuel gauge, though with a total cost of only $13, you'll likely start with plenty. A useful tip for this route is to ensure you're familiar with the transition from I 90 Business to MT 69, as this is where the road character shifts slightly.
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 42.5 miles from Bozeman, MT, or about 43m into the drive.
The longest continuous stretch on this route runs about 50.3 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 19 miles or 20m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 42.5 miles or 43m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 1h 29m
Traffic, exits, and arrival timing usually matter more near Boulder, MT than in the middle of the route.
Before You Leave
+
Open the route before leaving Bozeman, MT so your first major turns are already loaded.
Day 1
Settle into the route from Bozeman, MT
This is one driving day of about 85 miles and 1h 51m.
Your first comfortable stop window is around 19 miles from Bozeman, MT.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on I 90 Business for about 50.3 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 42.5 mi from Bozeman, MT · 43m into the drive
Mid-route town
Meal stop
43 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 19 miles helps settle the day before fatigue starts building.
Meal break
The midpoint is around 42.5 miles from Bozeman, MT, which is a good place for a longer meal and fuel stop.
Arriving in Boulder, MT
The final approach into Boulder, MT usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Fuel & Cost
Regular Gas
$13.47 one way
$26.94 round trip
$4.03/gal
25.4 MPG avg
30 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.22 | $14.12 | $28.24 |
| premium | $4.53 | $15.16 | $30.33 |
| diesel | $5.61 | $18.77 | $37.53 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$13
Meals
$25–$50
Total
$38–$63
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 29.7 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $9 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 25.5 | 0 | $8.92 | $4.08 |
| Efficient EV | 21.3 | 0 | $7.44 | $3.40 |
| EV Truck/SUV | 34 | 0 | $11.90 | $5.44 |
Gas CO2
30 kg
EV CO2
10 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.
Travel Intel
Current conditions at both ends of the drive.
Destination
Boulder, MT
Morning in Boulder on Friday
Local time
8:45 AM
MDT
Current temp
59°F
Unavailable
Live forecast
74°F
Whitehall, MT
43 mi in
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
5 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
1h 51m 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 Bozeman, MT to Boulder, MT covers 85 miles and takes about 1h 51m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 90 Business, MT 69, MT 2. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 42.5 miles from Bozeman, MT. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $13.47 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.
The drive from Bozeman, MT to Boulder, MT is easy. At 1h 51m with 98% highway, most drivers will find it relaxed and low-stress.
The main spots that need attention: at 0.4 miles (West Peach Street): Navigation decision point; at 0.8 miles (I 90 Business / North 7th Avenue): Navigation decision point; at 51.9 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.
The route from Bozeman, MT to Boulder, MT does not surface many named destination signs beyond the main corridor.
How this page is built
Compiled by the Trip.ovh 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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