How far is Casper, WY from Fort Washakie, WY?
The driving distance from Casper, WY to Fort Washakie, WY is about 155 miles (249.4 km), with a travel time of about 03h 07m by car.
- The straight-line flight distance is about 130.3 miles (209.7 km).
- For a round trip, plan for roughly 06h 14m 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 03h 07m.
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.
Town of the United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Casper and Fort Washakie.
Turn-by-Turn Driving Directions
Step-by-step road directions between Casper and Fort Washakie.
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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
Take the exit slight right toward US 20 West, US 26 West, WY 220 West: Shoshoni, Port of Entry
1846 ft · 45 sec
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8
Keep slight left
107 m · 11 sec
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9
Turn left
3 mi · 4 min
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10
Turn right onto West Yellowstone Highway
94.3 mi · 1 hr 47 min · West Yellowstone Highway
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11
Continue straight
17.7 mi · 20 min
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12
Continue straight
5.6 mi · 7 min
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13
Turn right onto Rendezvous Road
2.9 mi · 3 min · Rendezvous Road
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14
Continue on 17 Mile Road
17.9 mi · 21 min · 17 Mile Road
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15
At the end of the road, turn right onto Blue Sky Highway
2.1 mi · 4 min · Blue Sky Highway
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16
Turn left onto Ethete Road
5.6 mi · 10 min · Ethete Road
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17
Turn right
1.5 km · 1 min
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18
Turn left onto North Fork Road
137 m · 20 sec · North Fork Road
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19
Turn right onto Black Coal Drive
1015 ft · 46 sec · Black Coal Drive
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20
Turn right onto 2nd Street
8 m · 1 sec · 2nd Street
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21
Arrive at your destination
0 m · 1 sec · 2nd Street
Car Route Details
A richer read on the saved driving route between Casper and Fort Washakie.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
West Yellowstone Highway
Turn right onto West Yellowstone Highway
94.3 mi · 01h 47m
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.
Sunny leaving Casper and Sunny near Fort Washakie.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Casper to Fort Washakie?
The road trip is about 155 miles (249.4 km) and usually takes 03h 07m 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?
Shoshoni is a useful midpoint, sitting about 77.3 miles from Casper and 77.6 miles from Fort Washakie.
How much longer is the road route than the straight-line distance?
The direct path is about 130.3 miles (209.7 km), while the road route adds roughly 24.7 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 10:46 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $21.29 one way or $42.59 round trip. Estimated CO2 is about 48.6 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Casper and Sunny near Fort Washakie.
Flight Path Map
This map shows the direct air route between Casper and Fort Washakie. Straight-line distance: 130.31 mi (209.72 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 Fort Washakie
Census-designated place in Fremont County, Wyoming
| Population | 1,759 |
| Coordinates | 43.0063500, -108.8823500 |
| Altitude | 1698 |
| Country | United States |
End: Fort Washakie (-108.88235, 43.00635)
Estimated Travel Time
Distance: 249 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 09m |
| 40 mph (64.37 km/h) | 03h 52m |
| 50 mph (80.47 km/h) | 03h 05m |
| 60 mph (96.56 km/h) | 02h 34m |
| 70 mph (112.65 km/h) | 02h 12m |
| 80 mph (129 km/h) | 01h 55m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $21.29 | $42.59 |
| Mid-grade | $4.23 | $23.14 | $46.29 |
| Premium | $4.55 | $24.88 | $49.77 |
| Diesel | $5.41 | $29.60 | $59.21 |
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 · Apr 18, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.