How far is Great Falls, MT from Hardin, MT?
The driving distance from Great Falls, MT to Hardin, MT is about 265 miles (426.5 km), with a travel time of about 04h 54m by car.
- The straight-line flight distance is about 213.4 miles (343.5 km).
- For a round trip, plan for roughly 09h 48m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM MDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 04h 54m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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 Montana
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny then Showers And Thunderstorms Likely
Partly Sunny then Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Great Falls and Hardin.
Turn-by-Turn Driving Directions
Step-by-step road directions between Great Falls and Hardin.
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1
Start on 4th Street South
49 m · 12 sec · 4th Street South
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2
Turn left onto 5th Avenue South
130 m · 21 sec · 5th Avenue South
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3
Turn right onto 5th Street South
1988 ft · 36 sec · 5th Street South
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4
Turn left onto 10th Avenue South
5.7 mi · 8 min · 10th Avenue South
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5
Continue straight
17.6 mi · 19 min
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6
Enter the roundabout and take exit 2 toward the route
68 m · 3 sec
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7
Exit the roundabout
1606 ft · 21 sec
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8
Turn straight
64.3 mi · 1 hr 10 min
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9
Turn right
39.2 mi · 43 min
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10
Turn left
45.1 mi · 51 min
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11
Turn right
12.4 mi · 14 min
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12
Continue straight
2.5 mi · 3 min
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13
Continue straight
25.5 mi · 29 min
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14
Enter the roundabout and take exit 2 toward the route
38 m · 2 sec
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15
Exit the roundabout
3.1 mi · 4 min
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16
Enter the roundabout and take exit 2 toward Airport Road
46 m · 2 sec · Airport Road
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17
Exit the rotary onto Airport Road
2.7 mi · 4 min · Airport Road
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18
Turn right onto Swords Lane
76 m · 12 sec · Swords Lane
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19
Turn left onto Aronson Avenue
143 m · 9 sec · Aronson Avenue
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20
Merge slight left
3275 ft · 1 min
-
21
Turn left onto US Highway 87 East
1.3 mi · 2 min · US Highway 87 East
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22
Turn left
1595 ft · 41 sec
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23
Continue straight
3.1 mi · 4 min
-
24
Keep slight right to continue on I 90 East: Sheridan
39.2 mi · 37 min
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25
Take the exit slight right toward I 90 Business, MT 47: Hardin City Center
1726 ft · 45 sec
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26
Turn right
773 ft · 18 sec
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27
Continue on North Crawford Avenue
1242 ft · 30 sec · North Crawford Avenue
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28
Turn left onto North Crawford Avenue
2759 ft · 2 min · North Crawford Avenue
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29
Arrive at your destination
0 m · 1 sec · North Crawford Avenue
Car Route Details
A richer read on the saved driving route between Great Falls and Hardin.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Longest stretch
Turn straight
64.3 mi · 01h 10m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Partly Sunny then Showers And Thunderstorms Likely leaving Great Falls and Partly Sunny then Chance Rain Showers near Hardin.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Great Falls to Hardin?
The road trip is about 265 miles (426.5 km) and usually takes 04h 54m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Harlowton is a useful midpoint, sitting about 132.3 miles from Great Falls and 132.7 miles from Hardin.
How much longer is the road route than the straight-line distance?
The direct path is about 213.4 miles (343.5 km), while the road route adds roughly 51.6 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 6:00 AM to 8:00 AM MDT. If you want a more comfortable same-day return, try to leave by 7:12 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $36.40 one way or $72.80 round trip. Estimated CO2 is about 83.1 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny then Showers And Thunderstorms Likely around Great Falls and Partly Sunny then Chance Rain Showers near Hardin.
Stop Ideas Near Harlowton
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 Harlowton.
Livingston, MT
Flight Path Map
This map shows the direct air route between Great Falls and Hardin. Straight-line distance: 213.42 mi (343.47 km).
#1 Great Falls
Town in Cascade County, Montana, United States
| Population | 58,353 |
| Coordinates | 47.5002400, -111.3008100 |
| Altitude | 1015 |
| 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: Hardin (-107.61203, 45.73248)
Estimated Travel Time
Distance: 426 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 08h 49m |
| 40 mph (64.37 km/h) | 06h 37m |
| 50 mph (80.47 km/h) | 05h 17m |
| 60 mph (96.56 km/h) | 04h 24m |
| 70 mph (112.65 km/h) | 03h 47m |
| 80 mph (129 km/h) | 03h 18m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $36.40 | $72.80 |
| Mid-grade | $4.23 | $39.56 | $79.12 |
| Premium | $4.55 | $42.53 | $85.07 |
| Diesel | $5.41 | $50.60 | $101.20 |
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.