How far is Casper, WY from Baker, MT?
The driving distance from Casper, WY to Baker, MT is about 393.8 miles (633.7 km), with a travel time of about 07h 40m by car.
- The straight-line flight distance is about 261.6 miles (421 km).
- For a round trip, plan for roughly 15h 20m 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 40m.
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.
Chance Rain Showers
Patchy Fog then Partly Sunny
Driving Route Map
The map below follows the saved road route between Casper and Baker.
Turn-by-Turn Driving Directions
Step-by-step road directions between Casper and Baker.
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1
Start on North Sunlight Drive
1368 ft · 1 min · North Sunlight Drive
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2
Turn right
770 ft · 34 sec
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3
Turn right onto East Sunlight Drive
2655 ft · 2 min · East Sunlight Drive
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4
At the end of the road, turn right onto Bryan Stock Trail
1.1 mi · 2 min · Bryan Stock Trail
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5
Turn right onto East F Street
967 ft · 16 sec · East F Street
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6
Take the ramp straight
2.1 mi · 3 min
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7
Continue straight
21 mi · 20 min
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8
Take the exit slight right toward Horse Ranch Creek Road
1962 ft · 50 sec
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9
Turn right onto Horseshoe Road
17.9 mi · 20 min · Horseshoe Road
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10
Turn right
51.3 mi · 59 min
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11
Turn left onto State Highway 59 South
32.8 mi · 36 min · State Highway 59 South
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12
Continue on South Douglas Highway
1.7 mi · 2 min · South Douglas Highway
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13
Take the exit slight right
133 m · 13 sec
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14
Turn straight onto South Garner Lake Road
4 mi · 6 min · South Garner Lake Road
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15
Take the ramp right
88 mi · 1 hr 29 min
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16
Take the exit slight right toward US 85 North, I 90 Business, North Avenue, Belle Fourche
1856 ft · 45 sec
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17
Turn left onto US Highway 85
9.1 mi · 11 min · US Highway 85
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18
Continue on 5th Avenue
2.3 mi · 5 min · 5th Avenue
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19
Continue on US Highway 85
54.1 mi · 1 hr 2 min · US Highway 85
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20
Continue on Theodore Roosevelt Expressway
60.5 mi · 1 hr 10 min · Theodore Roosevelt Expressway
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21
Turn left onto Yellowstone Trail
26.7 mi · 40 min · Yellowstone Trail
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22
Continue on 1st Street
1.6 km · 1 min · 1st Street
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23
Continue on Yellowstone Trail
18.4 mi · 27 min · Yellowstone Trail
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24
Turn left onto 6th Street West
100 m · 15 sec · 6th Street West
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25
Arrive at your destination
0 m · 1 sec · 6th Street West
Car Route Details
A richer read on the saved driving route between Casper and Baker.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
South Garner Lake Road
Take the ramp right
88 mi · 01h 29m
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 Casper and Patchy Fog then Partly Sunny near Baker.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Casper to Baker?
The road trip is about 393.8 miles (633.7 km) and usually takes 07h 40m 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 196.6 miles from Casper and 197.2 miles from Baker.
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 132.2 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 $62.40 one way or $124.79 round trip. Estimated CO2 is about 123.5 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers around Casper and Patchy Fog then Partly Sunny near Baker.
Flight Path Map
This map shows the direct air route between Casper and Baker. Straight-line distance: 261.59 mi (420.99 km).
#1 Casper
The most populous city in Natrona County, Wyoming.
| Population | 58,498 |
| Coordinates | 42.8666300, -106.3130800 |
| Altitude | 1560 |
| Country | United States |
#2 Baker
Town in Montana, United States
| Population | 1,897 |
| Coordinates | 46.3669500, -104.2846600 |
| Altitude | 895 |
| Country | United States |
End: Baker (-104.28466, 46.36695)
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 50m |
| 50 mph (80.47 km/h) | 07h 52m |
| 60 mph (96.56 km/h) | 06h 33m |
| 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 | $4.49 | $62.40 | $124.79 |
| Mid-grade | $4.76 | $66.15 | $132.30 |
| Premium | $5.07 | $70.53 | $141.06 |
| Diesel | $6.18 | $85.90 | $171.80 |
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 Wyoming · Oct 13, 2026