How far is Casper, WY from Glenrock, WY?
The driving distance from Casper, WY to Glenrock, WY is about 25.2 miles (40.6 km), with a travel time of about 00h 31m by car.
- The straight-line flight distance is about 22.3 miles (35.9 km).
- For a round trip, plan for roughly 01h 02m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM MDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 31m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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 Wyoming
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Casper and Glenrock.
Turn-by-Turn Driving Directions
Step-by-step road directions between Casper and Glenrock.
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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
Continue on North Beverly Street
1150 ft · 30 sec · North Beverly Street
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6
Turn left onto East Yellowstone Highway
1535 ft · 26 sec · East Yellowstone Highway
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7
Take the ramp straight toward I 25 South: Douglas
1542 ft · 38 sec
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8
Merge slight left
19.9 mi · 20 min
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9
Take the exit slight right toward I 25 Business: Glenrock, Rolling Hills
1896 ft · 47 sec
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10
Turn left onto Deer Creek Road
1.6 mi · 2 min · Deer Creek Road
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11
Continue on South 4th Street
3019 ft · 56 sec · South 4th Street
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12
Turn left onto West Birch Street
7 m · 1 sec · West Birch Street
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13
Arrive at your destination
0 m · 1 sec · West Birch Street
Car Route Details
A richer read on the saved driving route between Casper and Glenrock.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
I 25 South
Merge slight left
19.9 mi · 00h 20m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Sunny leaving Casper and Mostly Sunny near Glenrock.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Casper to Glenrock?
The road trip is about 25.2 miles (40.6 km) and usually takes 00h 31m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Evansville is a useful midpoint, sitting about 12.6 miles from Casper and 12.7 miles from Glenrock.
How much longer is the road route than the straight-line distance?
The direct path is about 22.3 miles (35.9 km), while the road route adds roughly 2.9 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 7:00 AM to 7:00 PM MDT. If you want a more comfortable same-day return, try to leave by 7:28 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.46 one way or $6.93 round trip. Estimated CO2 is about 7.9 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Casper and Mostly Sunny near Glenrock.
Stop Ideas Near Evansville
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 Evansville.
Casper, Wyoming
Douglas, Wyoming
Flight Path Map
This map shows the direct air route between Casper and Glenrock. Straight-line distance: 22.33 mi (35.94 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 Glenrock
Town in Converse County, Wyoming, United States
| Population | 2,567 |
| Coordinates | 42.8613600, -105.8722300 |
| Altitude | 1530 |
| Country | United States |
End: Glenrock (-105.87223, 42.86136)
Estimated Travel Time
Distance: 41 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 50m |
| 40 mph (64.37 km/h) | 00h 37m |
| 50 mph (80.47 km/h) | 00h 30m |
| 60 mph (96.56 km/h) | 00h 25m |
| 70 mph (112.65 km/h) | 00h 21m |
| 80 mph (129 km/h) | 00h 18m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $3.46 | $6.93 |
| Mid-grade | $4.23 | $3.77 | $7.53 |
| Premium | $4.55 | $4.05 | $8.10 |
| Diesel | $5.41 | $4.82 | $9.63 |
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.