How far is Douglas, WY from Casper, WY?
The driving distance from Douglas, WY to Casper, WY is about 50.3 miles (81 km), with a travel time of about 00h 50m by car.
- The straight-line flight distance is about 47.8 miles (76.9 km).
- For a round trip, plan for roughly 01h 40m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM MDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 00h 50m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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 Converse County, Wyoming, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Douglas and Casper.
Turn-by-Turn Driving Directions
Step-by-step road directions between Douglas and Casper.
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1
Start on the route
21 m · 7 sec
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2
Turn right onto East Center Street
1767 ft · 41 sec · East Center Street
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3
Continue on West Yellowstone Highway
1.2 mi · 2 min · West Yellowstone Highway
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4
Keep slight right to continue on I 25 North, US 87 North, US 20 West, US 26 West
2069 ft · 50 sec
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5
Merge slight left
46.3 mi · 48 min
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6
Take the exit slight right toward I 25 Business, US 20, US 26, US 87: North Beverly Street, Bryan Stock Trail
670 ft · 16 sec
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7
Turn straight onto East F Street
99 m · 10 sec · East F Street
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8
Turn right onto Bryan Stock Trail
1.1 mi · 2 min · Bryan Stock Trail
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9
Turn left onto East Sunlight Drive
1.5 km · 4 min · East Sunlight Drive
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10
Arrive at your destination
0 m · 1 sec · North Sunlight Drive
Car Route Details
A richer read on the saved driving route between Douglas and Casper.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 25 North
Merge slight left
46.3 mi · 00h 48m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Mostly Sunny leaving Douglas and Mostly Sunny near Casper.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Douglas to Casper?
The road trip is about 50.3 miles (81 km) and usually takes 00h 50m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Glenrock is a useful midpoint, sitting about 25.1 miles from Douglas and 25.2 miles from Casper.
How much longer is the road route than the straight-line distance?
The direct path is about 47.8 miles (76.9 km), while the road route adds roughly 2.5 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 8:00 AM to 10:00 AM MDT. If you want a more comfortable same-day return, try to leave by 4:50 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $6.93 one way or $13.86 round trip. Estimated CO2 is about 15.8 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Douglas and Mostly Sunny near Casper.
Stop Ideas Near Glenrock
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 Glenrock.
Casper, Wyoming
Douglas, Wyoming
Wheatland, Wyoming
Flight Path Map
This map shows the direct air route between Douglas and Casper. Straight-line distance: 47.76 mi (76.86 km).
#1 Douglas
City in Converse County, Wyoming, United States
| Population | 6,375 |
| Coordinates | 42.7596900, -105.3822100 |
| Altitude | 1474 |
| 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: North Sunlight Drive (-106.309604, 42.868632)
Estimated Travel Time
Distance: 81 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 40m |
| 40 mph (64.37 km/h) | 01h 15m |
| 50 mph (80.47 km/h) | 01h 00m |
| 60 mph (96.56 km/h) | 00h 50m |
| 70 mph (112.65 km/h) | 00h 43m |
| 80 mph (129 km/h) | 00h 37m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $6.93 | $13.86 |
| Mid-grade | $4.23 | $7.53 | $15.06 |
| Premium | $4.55 | $8.10 | $16.19 |
| Diesel | $5.41 | $9.63 | $19.27 |
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 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.