How far is Belgrade, MT from Boulder, MT?
The driving distance from Belgrade, MT to Boulder, MT is about 75.5 miles (121.5 km), with a travel time of about 01h 41m by car.
- The straight-line flight distance is about 55.4 miles (89.1 km).
- For a round trip, plan for roughly 03h 22m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM MDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 01h 41m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Town in Jefferson County, Montana
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain And Snow Likely
Light Snow
Driving Route Map
The map below follows the saved road route between Belgrade and Boulder.
Turn-by-Turn Driving Directions
Step-by-step road directions between Belgrade and Boulder.
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1
Start on East Main Street
25 m · 10 sec · East Main Street
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2
Turn left onto South Broadway
1482 ft · 51 sec · South Broadway
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3
Continue on West Madison Avenue
1116 ft · 30 sec · West Madison Avenue
-
4
Turn left onto Jackrabbit Lane
1411 ft · 29 sec · Jackrabbit Lane
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5
Take the ramp right
1108 ft · 27 sec
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6
Merge slight left
41.5 mi · 40 min
-
7
Take the exit slight right toward MT 359: Cardwell, Boulder
1328 ft · 33 sec
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8
Turn right
1.2 mi · 2 min
-
9
Turn right
31.5 mi · 55 min
-
10
Turn left onto West Centennial Avenue
125 m · 18 sec · West Centennial Avenue
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11
Arrive at your destination
0 m · 1 sec · West Centennial Avenue
Car Route Details
A richer read on the saved driving route between Belgrade and Boulder.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Jackrabbit Lane
Merge slight left
41.5 mi · 00h 40m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Rain And Snow Likely leaving Belgrade and Light Snow near Boulder.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Belgrade to Boulder?
The road trip is about 75.5 miles (121.5 km) and usually takes 01h 41m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Whitehall is a useful midpoint, sitting about 37.7 miles from Belgrade and 37.8 miles from Boulder.
How much longer is the road route than the straight-line distance?
The direct path is about 55.4 miles (89.1 km), while the road route adds roughly 20.1 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 8:00 AM to 10:00 AM MDT. If you want a more comfortable same-day return, try to leave by 3:08 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $10.39 one way or $20.79 round trip. Estimated CO2 is about 23.7 kg one way.
What should you check before leaving?
Before you leave, expect Rain And Snow Likely around Belgrade and Light Snow near Boulder.
Stop Ideas Near Whitehall
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Whitehall.
Butte, MT
Bozeman, MT
Flight Path Map
This map shows the direct air route between Belgrade and Boulder. Straight-line distance: 55.36 mi (89.09 km).
#1 Belgrade
City in Gallatin County, Montana, USA
| Population | 10,390 |
| Coordinates | 45.7760400, -111.1769000 |
| Altitude | 1359 |
| Country | United States |
#2 Boulder
Town in Montana
| Population | 1,291 |
| Coordinates | 46.2365900, -112.1208300 |
| Altitude | 1496 |
| Country | United States |
End: Boulder (-112.12083, 46.23659)
Estimated Travel Time
Distance: 122 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 30m |
| 40 mph (64.37 km/h) | 01h 53m |
| 50 mph (80.47 km/h) | 01h 30m |
| 60 mph (96.56 km/h) | 01h 15m |
| 70 mph (112.65 km/h) | 01h 04m |
| 80 mph (129 km/h) | 00h 56m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $10.39 | $20.79 |
| Mid-grade | $4.23 | $11.30 | $22.59 |
| Premium | $4.55 | $12.15 | $24.29 |
| Diesel | $5.41 | $14.45 | $28.90 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Montana · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.