How far is Casper, WY from Powell, WY?
Fastest route
Here are some tips and suggestions for your trip from Casper, Wyoming, to Powell, Wyoming. The distance is approximately 238 miles (383 kilometers), and the estimated travel time is 3 hours and 42 minutes. Follow these directions for the fastest route, taking into account traffic conditions.
Directions
- Head north on S Beverly St toward E 1st St.
- Follow US-20 W to WY-120 W/Broadway St in Thermopolis.
- Use the left lane to merge onto I-25 N/US-20/US-26/US-87 N via the ramp to US-20 W/US-26 W/Midwest - Shoshoni.
- Take exit 189 toward Shoshoni/Port of Entry.
- Use any lane to turn left onto US-20 W/US-26.
- Keep left to stay on US-20 W/US-26, following signs for Casper.
- Turn right onto US-20 W/US-26 W, and then right onto US-20 W/Idaho St.
- Continue to follow US-20 W and turn left onto WY-120 W/Broadway St.
- Continue on WY-120 W until you reach your destination in Powell.
Tips & Suggestions
- 🚗 Plan your departure time to avoid peak traffic hours.
- ⛽ Make sure to have a full tank of gas before starting the journey.
- 🍴 Pack some snacks and drinks for the road, as there might not be many stops along the way.
- 🛣️ Stay informed about road conditions and possible detours in case of construction.
- 📱 Bring a phone charger and have a map or GPS app handy for navigation.
- 🚧 Obey speed limits and other traffic regulations to ensure a safe trip.
- 🏨 Consider booking accommodation in Powell in advance, especially if you plan to stay overnight.
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 04h 08m.
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.
Rain And Snow Showers Likely
Rain And Snow Showers Likely
Driving Route Map
The map below follows the saved road route between Casper and Powell.
Turn-by-Turn Driving Directions
Step-by-step road directions between Casper and Powell.
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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
-
7
Take the exit slight right toward US 20 West, US 26 West, WY 220 West: Shoshoni, Port of Entry
1846 ft · 45 sec
-
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
35.8 mi · 41 min · West Yellowstone Highway
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11
Continue on West US Highway 20-26
58 mi · 1 hr 6 min · West US Highway 20-26
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12
Turn right onto Idaho Street
31.7 mi · 38 min · Idaho Street
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13
Turn left onto South 8th Street
2829 ft · 2 min · South 8th Street
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14
Turn left onto Broadway Street
81.5 mi · 1 hr 29 min · Broadway Street
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15
Turn right onto Greybull Highway
2835 ft · 53 sec · Greybull Highway
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16
Turn left onto Beacon Hill Road
1.8 mi · 3 min · Beacon Hill Road
-
17
Turn right onto Powell Highway
14.7 mi · 16 min · Powell Highway
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18
Continue on Main Street
1.2 mi · 2 min · Main Street
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19
Continue on Medicine Wheel Passage
4.2 mi · 5 min · Medicine Wheel Passage
-
20
Continue on West Coulter Avenue
1.2 mi · 3 min · West Coulter Avenue
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21
Turn left onto South Bent Street
901 ft · 26 sec · South Bent Street
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22
Arrive at your destination
0 m · 1 sec · North Bent Street
Car Route Details
A richer read on the saved driving route between Casper and Powell.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Broadway Street
Turn left onto Broadway Street
81.5 mi · 01h 29m
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.
Rain And Snow Showers Likely leaving Casper and Rain And Snow Showers Likely near Powell.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Casper to Powell?
The road trip is about 238.5 miles (383.8 km) and usually takes 04h 08m 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?
East Thermopolis is a useful midpoint, sitting about 119.4 miles from Casper and 119.1 miles from Powell.
How much longer is the road route than the straight-line distance?
The direct path is about 178.5 miles (287.2 km), while the road route adds roughly 60 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 8:42 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $32.78 one way or $65.56 round trip. Estimated CO2 is about 74.8 kg one way.
What should you check before leaving?
Before you leave, expect Rain And Snow Showers Likely around Casper and Rain And Snow Showers Likely near Powell.
Flight Path Map
This map shows the direct air route between Casper and Powell. Straight-line distance: 178.46 mi (287.21 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 Powell
City in Park County, Wyoming, United States
| Population | 6,127 |
| Coordinates | 44.7538400, -108.7573500 |
| Altitude | 1339 |
| Country | United States |
End: North Bent Street (-108.757586, 44.75384)
Estimated Travel Time
Distance: 384 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 56m |
| 40 mph (64.37 km/h) | 05h 57m |
| 50 mph (80.47 km/h) | 04h 46m |
| 60 mph (96.56 km/h) | 03h 58m |
| 70 mph (112.65 km/h) | 03h 24m |
| 80 mph (129 km/h) | 02h 58m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $32.78 | $65.56 |
| Mid-grade | $4.23 | $35.63 | $71.25 |
| Premium | $4.55 | $38.30 | $76.61 |
| Diesel | $5.41 | $45.57 | $91.14 |
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.