How far is Baker, MT from Casper, WY?
The driving distance from Baker, MT to Casper, WY is about 394 miles (634.1 km), with a travel time of about 07h 41m by car.
- The straight-line flight distance is about 261.6 miles (421 km).
- For a round trip, plan for roughly 15h 22m 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 07h 41m.
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 in Crook County, Wyoming, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Patchy Fog then Partly Sunny
Chance Rain Showers
Driving Route Map
The map below follows the saved road route between Baker and Casper.
Turn-by-Turn Driving Directions
Step-by-step road directions between Baker and Casper.
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1
Start on 6th Street West
100 m · 17 sec · 6th Street West
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2
Turn right
46.1 mi · 1 hr 8 min
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3
Turn right onto Theodore Roosevelt Expressway
16.5 mi · 19 min · Theodore Roosevelt Expressway
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4
Continue on US Highway 85
98.1 mi · 1 hr 53 min · US Highway 85
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5
Continue on North 5th Avenue
2.3 mi · 5 min · North 5th Avenue
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6
Continue on US Highway 85
8.8 mi · 11 min · US Highway 85
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7
Take the exit slight right toward I-90 West
1977 ft · 48 sec
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8
Merge slight left
87.6 mi · 1 hr 29 min
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9
Take the exit slight right toward Garner Lake Road
1954 ft · 49 sec
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10
Turn left onto North Garner Lake Road
4.2 mi · 7 min · North Garner Lake Road
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11
Turn left onto South Douglas Highway
1.7 mi · 2 min · South Douglas Highway
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12
Continue on State Highway 59 South
32.8 mi · 36 min · State Highway 59 South
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13
Turn right
51.3 mi · 59 min
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14
Turn left
18.1 mi · 21 min
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15
Take the exit left toward I 25 South: Casper
2173 ft · 53 sec
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16
Merge slight left
20.9 mi · 20 min
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17
Continue straight
2 mi · 3 min
-
18
Take the exit slight right toward US 20 East, US 26 East, US 87 South: North Beverly Street, Bryan Stock Trail
1755 ft · 41 sec
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19
At the end of the road, turn left onto Bryan Stock Trail
1.1 mi · 2 min · Bryan Stock Trail
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20
Turn left onto East Sunlight Drive
1.5 km · 4 min · East Sunlight Drive
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21
Arrive at your destination
0 m · 1 sec · North Sunlight Drive
Car Route Details
A richer read on the saved driving route between Baker and Casper.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
US Highway 85
Continue on US Highway 85
98.1 mi · 01h 53m
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.
Patchy Fog then Partly Sunny leaving Baker and Chance Rain Showers near Casper.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Baker to Casper?
The road trip is about 394 miles (634.1 km) and usually takes 07h 41m 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?
Sundance is a useful midpoint, sitting about 196.7 miles from Baker and 197.3 miles from Casper.
How much longer is the road route than the straight-line distance?
The direct path is about 261.6 miles (421 km), while the road route adds roughly 132.4 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 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 $62.59 one way or $125.18 round trip. Estimated CO2 is about 123.5 kg one way.
What should you check before leaving?
Before you leave, expect Patchy Fog then Partly Sunny around Baker and Chance Rain Showers near Casper.
Flight Path Map
This map shows the direct air route between Baker and Casper. Straight-line distance: 261.59 mi (420.99 km).
#1 Baker
Town in Montana, United States
| Population | 1,897 |
| Coordinates | 46.3669500, -104.2846600 |
| Altitude | 895 |
| Country | United States |
#2 Casper
The most populous city in Natrona County, Wyoming.
| Population | 58,498 |
| Coordinates | 42.8666300, -106.3130800 |
| Altitude | 1560 |
| Country | United States |
End: Casper (-106.31308, 42.86663)
Estimated Travel Time
Distance: 634 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 13h 07m |
| 40 mph (64.37 km/h) | 09h 51m |
| 50 mph (80.47 km/h) | 07h 52m |
| 60 mph (96.56 km/h) | 06h 34m |
| 70 mph (112.65 km/h) | 05h 37m |
| 80 mph (129 km/h) | 04h 54m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.50 | $62.59 | $125.18 |
| Mid-grade | $4.83 | $67.14 | $134.27 |
| Premium | $5.21 | $72.43 | $144.87 |
| Diesel | $6.13 | $85.15 | $170.30 |
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 · Oct 13, 2026