How far is Casper, WY from Ranchester, WY?
The driving distance from Casper, WY to Ranchester, WY is about 165.7 miles (266.6 km), with a travel time of about 02h 48m by car.
- The straight-line flight distance is about 147.3 miles (237.1 km).
- For a round trip, plan for roughly 05h 36m 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 02h 48m.
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 of the United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Partly Sunny then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Casper and Ranchester.
Turn-by-Turn Driving Directions
Step-by-step road directions between Casper and Ranchester.
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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
111.5 mi · 1 hr 45 min
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8
Keep slight left to continue on I 90 West, US 87 North: Sheridan
48.4 mi · 52 min
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9
Take the exit slight right toward US 14 West: Ranchester-Dayton, Greybull-Lovell, Yellowstone-Teton National Parks
2282 ft · 1 min
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10
Turn left
1.5 km · 2 min
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11
Arrive at your destination
0 m · 1 sec · Dayton Street
Car Route Details
A richer read on the saved driving route between Casper and Ranchester.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
East F Street
Continue straight
112 mi · 01h 45m
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 Casper and Partly Sunny then Chance Showers And Thunderstorms near Ranchester.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Casper to Ranchester?
The road trip is about 165.7 miles (266.6 km) and usually takes 02h 48m 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?
Kaycee is a useful midpoint, sitting about 82.8 miles from Casper and 82.8 miles from Ranchester.
How much longer is the road route than the straight-line distance?
The direct path is about 147.3 miles (237.1 km), while the road route adds roughly 18.4 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 8:00 AM to 10:00 AM MDT. If you want a more comfortable same-day return, try to leave by 12:54 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $22.77 one way or $45.55 round trip. Estimated CO2 is about 52 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Casper and Partly Sunny then Chance Showers And Thunderstorms near Ranchester.
Stop Ideas Near Kaycee
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 Kaycee.
Casper, Wyoming
Flight Path Map
This map shows the direct air route between Casper and Ranchester. Straight-line distance: 147.32 mi (237.09 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 Ranchester
Town of the United States
| Population | 1,082 |
| Coordinates | 44.9088600, -107.1634100 |
| Altitude | 1147 |
| Country | United States |
End: Ranchester (-107.16341, 44.90886)
Estimated Travel Time
Distance: 267 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 31m |
| 40 mph (64.37 km/h) | 04h 08m |
| 50 mph (80.47 km/h) | 03h 18m |
| 60 mph (96.56 km/h) | 02h 45m |
| 70 mph (112.65 km/h) | 02h 21m |
| 80 mph (129 km/h) | 02h 03m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $22.77 | $45.55 |
| Mid-grade | $4.23 | $24.75 | $49.50 |
| Premium | $4.55 | $26.61 | $53.22 |
| Diesel | $5.41 | $31.66 | $63.32 |
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.