How far is Fort Smith, MT from Hardin, MT?
The driving distance from Fort Smith, MT to Hardin, MT is about 42.4 miles (68.3 km), with a travel time of about 00h 47m by car.
- The straight-line flight distance is about 33 miles (53.1 km).
- For a round trip, plan for roughly 01h 35m 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 47m.
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.
Census designated place
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers
Rain And Snow Showers
Driving Route Map
The map below follows the saved road route between Fort Smith and Hardin.
Turn-by-Turn Driving Directions
Step-by-step road directions between Fort Smith and Hardin.
-
1
Start on the route
20 m · 6 sec
-
2
Turn right onto Route 211
1.1 km · 3 min · Route 211
-
3
Continue on Secondary State Highway 313
18.3 mi · 32 min · Secondary State Highway 313
-
4
Continue on Secondary State Highway 313
20.9 mi · 37 min · Secondary State Highway 313
-
5
Continue on Secondary State Highway Highway 313
1.3 mi · 2 min · Secondary State Highway Highway 313
-
6
Continue on South Mitchell Avenue
1 km · 1 min · South Mitchell Avenue
-
7
Turn right onto 3rd Street West
2630 ft · 58 sec · 3rd Street West
-
8
Turn left onto North Crawford Avenue
126 m · 18 sec · North Crawford Avenue
-
9
Arrive at your destination
0 m · 1 sec · North Crawford Avenue
Car Route Details
A richer read on the saved driving route between Fort Smith and Hardin.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Secondary State Highway 313
Continue on Secondary State Highway 313
20.9 mi · 00h 37m
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 And Snow Showers near Hardin.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Fort Smith to Hardin?
The road trip is about 42.4 miles (68.3 km) and usually takes 00h 47m 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?
Crow Agency is a useful midpoint, sitting about 21.2 miles from Fort Smith and 21.3 miles from Hardin.
How much longer is the road route than the straight-line distance?
The direct path is about 33 miles (53.1 km), while the road route adds roughly 9.4 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 4:54 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.84 one way or $11.68 round trip. Estimated CO2 is about 13.3 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers around Fort Smith and Rain And Snow Showers near Hardin.
Stop Ideas Near Crow Agency
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 Crow Agency.
Billings, MT
Flight Path Map
This map shows the direct air route between Fort Smith and Hardin. Straight-line distance: 32.99 mi (53.1 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 Hardin
City in Big Horn County, Montana, United States of America
| Population | 3,705 |
| Coordinates | 45.7324800, -107.6120300 |
| Altitude | 886 |
| Country | United States |
End: North Crawford Avenue (-107.611929, 45.732479)
Estimated Travel Time
Distance: 68 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 24m |
| 40 mph (64.37 km/h) | 01h 03m |
| 50 mph (80.47 km/h) | 00h 50m |
| 60 mph (96.56 km/h) | 00h 42m |
| 70 mph (112.65 km/h) | 00h 36m |
| 80 mph (129 km/h) | 00h 31m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $5.84 | $11.68 |
| Mid-grade | $4.23 | $6.35 | $12.69 |
| Premium | $4.55 | $6.82 | $13.65 |
| Diesel | $5.41 | $8.12 | $16.24 |
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.