How far is Fort Smith, MT from Lodge Grass, MT?
The driving distance from Fort Smith, MT to Lodge Grass, MT is about 41.3 miles (66.4 km), with a travel time of about 00h 54m by car.
- The straight-line flight distance is about 27.9 miles (44.9 km).
- For a round trip, plan for roughly 01h 48m 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 00h 54m.
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.
City in Big Horn County, Montana, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers
Rain Showers Likely
Driving Route Map
The map below follows the saved road route between Fort Smith and Lodge Grass.
Turn-by-Turn Driving Directions
Step-by-step road directions between Fort Smith and Lodge Grass.
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1
Start on the route
20 m · 6 sec
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2
Turn right onto Route 211
1.1 km · 3 min · Route 211
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3
Continue on Secondary State Highway 313
18.3 mi · 32 min · Secondary State Highway 313
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4
Continue on Secondary State Highway 313
13.7 mi · 24 min · Secondary State Highway 313
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5
Turn right onto Crow-Saint Xavier Road
1.6 km · 2 min · Crow-Saint Xavier Road
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6
Continue on Crow-Saint Xavier Cutoff
8.7 mi · 15 min · Crow-Saint Xavier Cutoff
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7
Turn right
1.1 km · 1 min
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8
Take the ramp right
1331 ft · 32 sec
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9
Merge slight left
20.8 mi · 20 min
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10
Take the exit slight right toward MT 463: Lodge Grass
2065 ft · 52 sec
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11
Turn right
1.4 km · 2 min
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12
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Fort Smith and Lodge Grass.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Crow-Saint Xavier Cutoff
Merge slight left
20.8 mi · 00h 20m
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 Showers leaving Fort Smith and Rain Showers Likely near Lodge Grass.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Fort Smith to Lodge Grass?
The road trip is about 41.3 miles (66.4 km) and usually takes 00h 54m 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?
Hardin is a useful midpoint, sitting about 32.7 miles from Fort Smith and 8.6 miles from Lodge Grass.
How much longer is the road route than the straight-line distance?
The direct path is about 27.9 miles (44.9 km), while the road route adds roughly 13.4 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 4:42 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.68 one way or $11.37 round trip. Estimated CO2 is about 13 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers around Fort Smith and Rain Showers Likely near Lodge Grass.
Stop Ideas Near Hardin
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 Hardin.
Billings, MT
Flight Path Map
This map shows the direct air route between Fort Smith and Lodge Grass. Straight-line distance: 27.89 mi (44.88 km).
#1 Fort Smith
Fort Smith is a place in Montana, United States.
| Population | 0 |
| Coordinates | 45.3127400, -107.9370600 |
| Altitude | 1002 |
| Country | United States |
#2 Lodge Grass
Town of the United States
| Population | 442 |
| Coordinates | 45.3144100, -107.3631500 |
| Altitude | 1027 |
| Country | United States |
End: (-107.363168, 45.314459)
Estimated Travel Time
Distance: 66 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 22m |
| 40 mph (64.37 km/h) | 01h 01m |
| 50 mph (80.47 km/h) | 00h 49m |
| 60 mph (96.56 km/h) | 00h 41m |
| 70 mph (112.65 km/h) | 00h 35m |
| 80 mph (129 km/h) | 00h 30m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $5.68 | $11.37 |
| Mid-grade | $4.23 | $6.18 | $12.35 |
| Premium | $4.55 | $6.64 | $13.28 |
| Diesel | $5.41 | $7.90 | $15.80 |
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.