How far is Glenrock, WY from Casper, WY?
Fastest route
The distance between Glenrock, Wyoming 82637, and Casper, Wyoming, is approximately 22.9 miles (36.9 kilometers). The estimated travel time is 26 minutes via US-87.
Directions
- Head west on US-20 W/US-26 W/US-87/W Birch St toward S 5th St. 🚗
- Continue to follow US-20 W/US-26 W/US-87 for 22.0 miles. 🛣️
- Keep left to continue on US-87. 🔄
- Drive for an additional 0.5 miles. 🚙
- Turn left onto N Beverly St. 🛑
- Proceed for 0.4 miles until you reach Casper, Wyoming. 🏙️
Tips & Suggestions
- 🚘 Consider using a navigation app to get real-time updates on traffic and road conditions.
- 🕒 Check the weather forecast before starting your journey to be prepared for any adverse conditions.
- ⛽ Make sure your vehicle has enough fuel for the trip, especially if there are no gas stations along the route.
- 🚧 Be cautious of construction zones or detours that may affect your route, and plan for potential delays.
- 📱 Keep your phone charged or bring a car charger to ensure you have access to maps and communication during the drive.
FAQs
Q: How long does it take to travel from Glenrock, Wyoming, to Casper, Wyoming? A: The estimated travel time is 26 minutes.
Q: What is the distance between Glenrock and Casper? A: The distance is approximately 22.9 miles (36.9 kilometers).
Q: Which road should I take to get from Glenrock to Casper? A: You should take US-87.
Q: Are there any specific landmarks or turns along the route to Casper? A: Yes, you need to turn left onto N Beverly St in Casper.
Q: Is there a quicker alternative route to Casper from Glenrock? A: The provided route via US-87 is the recommended route, but you can use a navigation app to explore other possible alternatives.
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 27m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
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.
Rain Showers Likely then Rain And Snow Showers Likely
Rain And Snow Showers Likely
Driving Route Map
The map below follows the saved road route between Glenrock and Casper.
Turn-by-Turn Driving Directions
Step-by-step road directions between Glenrock and Casper.
-
1
Start on West Birch Street
7 m · 2 sec · West Birch Street
-
2
Turn right onto South 4th Street
3019 ft · 51 sec · South 4th Street
-
3
Continue on Deer Creek Road
1.4 mi · 2 min · Deer Creek Road
-
4
Take the ramp right
20.8 mi · 22 min
-
5
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
-
6
Turn straight onto East F Street
99 m · 10 sec · East F Street
-
7
Turn right onto Bryan Stock Trail
1.1 mi · 2 min · Bryan Stock Trail
-
8
Turn left onto East Sunlight Drive
1.5 km · 4 min · East Sunlight Drive
-
9
Arrive at your destination
0 m · 1 sec · North Sunlight Drive
Car Route Details
A richer read on the saved driving route between Glenrock and Casper.
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.
Deer Creek Road
Take the ramp right
20.8 mi · 00h 22m
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.
Rain Showers Likely then Rain And Snow Showers Likely leaving Glenrock and Rain And Snow Showers Likely near Casper.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Glenrock to Casper?
The road trip is about 25 miles (40.2 km) and usually takes 00h 27m 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 12.5 miles from Glenrock and 12.5 miles from Casper.
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 2.7 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 7:00 AM to 7:00 PM MDT. If you want a more comfortable same-day return, try to leave by 7:34 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.43 one way or $6.85 round trip. Estimated CO2 is about 7.8 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers Likely then Rain And Snow Showers Likely around Glenrock and Rain And Snow Showers Likely near Casper.
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 Glenrock and Casper. Straight-line distance: 22.33 mi (35.94 km).
#1 Glenrock
Town in Converse County, Wyoming, United States
| Population | 2,567 |
| Coordinates | 42.8613600, -105.8722300 |
| Altitude | 1530 |
| 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: 40 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 49m |
| 40 mph (64.37 km/h) | 00h 37m |
| 50 mph (80.47 km/h) | 00h 29m |
| 60 mph (96.56 km/h) | 00h 24m |
| 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 | $3.43 | $6.85 |
| Mid-grade | $4.23 | $3.72 | $7.45 |
| Premium | $4.55 | $4.00 | $8.01 |
| Diesel | $5.41 | $4.76 | $9.53 |
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.