How far is Miles City, MT from Three Forks, MT?
The driving distance from Miles City, MT to Three Forks, MT is about 310.5 miles (499.7 km), with a travel time of about 06h 48m by car.
- The straight-line flight distance is about 255.3 miles (410.8 km).
- For a round trip, plan for roughly 13h 37m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 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 06h 48m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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 of the United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers
Slight Chance Light Snow then Partly Sunny
Driving Route Map
The map below follows the saved road route between Miles City and Three Forks.
Turn-by-Turn Driving Directions
Step-by-step road directions between Miles City and Three Forks.
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1
Start on Main Street
2357 ft · 56 sec · Main Street
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2
Turn right onto North 7th Street
82.6 mi · 2 hr 3 min · North 7th Street
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3
At the end of the road, turn left
128.3 mi · 2 hr 19 min
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4
Turn right onto 1st Avenue North
1629 ft · 30 sec · 1st Avenue North
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5
Continue on Truck Bypass
2.6 mi · 4 min · Truck Bypass
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6
Continue on US Highway 87
14.7 mi · 16 min · US Highway 87
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7
Continue straight
64.3 mi · 1 hr 10 min
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8
Turn slight right
1588 ft · 21 sec
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9
Enter the roundabout and take exit 2 toward the route
52 m · 2 sec
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10
Exit the roundabout
557 ft · 7 sec
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11
Continue straight
3.5 mi · 4 min
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12
Turn left onto Tiger Butte Road
1880 ft · 1 min · Tiger Butte Road
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13
Keep slight right to continue on McCoy Road
1.9 mi · 7 min · McCoy Road
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14
Continue on McCoy Road
3.1 mi · 12 min · McCoy Road
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15
Continue on McCoy Road
2.4 mi · 9 min · McCoy Road
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16
Turn slight left onto Century School Road
3.9 mi · 15 min · Century School Road
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17
At the end of the road, turn right onto Cottonwood Coulee Road
1.6 km · 4 min · Cottonwood Coulee Road
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18
Continue on Cottonwood Coulee Road
1.1 km · 3 min · Cottonwood Coulee Road
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19
Arrive at your destination
0 m · 1 sec · Cottonwood Coulee Road
Car Route Details
A richer read on the saved driving route between Miles City and Three Forks.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Longest stretch
At the end of the road, turn left
128 mi · 02h 19m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Chance Rain Showers leaving Miles City and Slight Chance Light Snow then Partly Sunny near Three Forks.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Miles City to Three Forks?
The road trip is about 310.5 miles (499.7 km) and usually takes 06h 48m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Winnett is a useful midpoint, sitting about 155 miles from Miles City and 155.5 miles from Three Forks.
How much longer is the road route than the straight-line distance?
The direct path is about 255.3 miles (410.8 km), while the road route adds roughly 55.2 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 7:30 AM MDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $42.67 one way or $85.33 round trip. Estimated CO2 is about 97.4 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers around Miles City and Slight Chance Light Snow then Partly Sunny near Three Forks.
Flight Path Map
This map shows the direct air route between Miles City and Three Forks. Straight-line distance: 255.27 mi (410.81 km).
#1 Miles City
City in Custer County, Montana
| Population | 8,264 |
| Coordinates | 46.4083400, -105.8405600 |
| Altitude | 722 |
| Country | United States |
#2 Three Forks
City in Cascade County, Montana, United States
| Population | 2,043 |
| Coordinates | 47.2816300, -111.0902400 |
| Altitude | 1208 |
| Country | United States |
End: Three Forks (-111.09024, 47.28163)
Estimated Travel Time
Distance: 500 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 10h 20m |
| 40 mph (64.37 km/h) | 07h 45m |
| 50 mph (80.47 km/h) | 06h 12m |
| 60 mph (96.56 km/h) | 05h 10m |
| 70 mph (112.65 km/h) | 04h 26m |
| 80 mph (129 km/h) | 03h 52m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $42.67 | $85.33 |
| Mid-grade | $4.23 | $46.37 | $92.74 |
| Premium | $4.55 | $49.86 | $99.71 |
| Diesel | $5.41 | $59.32 | $118.63 |
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 · May 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.