How far is Casper, WY from Newcastle, WY?
The driving distance from Casper, WY to Newcastle, WY is about 166.5 miles (267.9 km), with a travel time of about 03h 34m by car.
- The straight-line flight distance is about 126 miles (202.8 km).
- For a round trip, plan for roughly 07h 08m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM MDT.
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 03h 34m.
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 in Campbell County, Wyoming
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny then Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Casper and Newcastle.
Turn-by-Turn Driving Directions
Step-by-step road directions between Casper and Newcastle.
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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
21 mi · 20 min
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8
Take the exit slight right toward Horse Ranch Creek Road
1962 ft · 50 sec
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9
Turn right onto Horseshoe Road
17.9 mi · 20 min · Horseshoe Road
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10
Turn right
51.3 mi · 59 min
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11
Turn right onto State Highway 59 South
2.7 mi · 3 min · State Highway 59 South
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12
Turn left onto Clareton Highway
20.6 mi · 31 min · Clareton Highway
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13
Continue on Highway 450
45.6 mi · 1 hr 8 min · Highway 450
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14
At the end of the road, turn right onto US Highway 16
1.2 km · 1 min · US Highway 16
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15
Continue on West Main Street
2.1 mi · 3 min · West Main Street
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16
Arrive at your destination
0 m · 1 sec · West Main Street
Car Route Details
A richer read on the saved driving route between Casper and Newcastle.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Longest stretch
Turn right
51.3 mi · 00h 59m
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.
Mostly Sunny leaving Casper and Mostly Sunny then Slight Chance Showers And Thunderstorms near Newcastle.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Casper to Newcastle?
The road trip is about 166.5 miles (267.9 km) and usually takes 03h 34m 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?
Wright is a useful midpoint, sitting about 83.1 miles from Casper and 83.3 miles from Newcastle.
How much longer is the road route than the straight-line distance?
The direct path is about 126 miles (202.8 km), while the road route adds roughly 40.5 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 6:00 AM to 8:00 AM MDT. If you want a more comfortable same-day return, try to leave by 9:52 AM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $22.89 one way or $45.78 round trip. Estimated CO2 is about 52.3 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Casper and Mostly Sunny then Slight Chance Showers And Thunderstorms near Newcastle.
Stop Ideas Near Wright
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 Wright.
Douglas, Wyoming
Flight Path Map
This map shows the direct air route between Casper and Newcastle. Straight-line distance: 125.99 mi (202.76 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 Newcastle
City in Weston County, Wyoming, United States
| Population | 3,314 |
| Coordinates | 43.8547000, -104.2049400 |
| Altitude | 1319 |
| Country | United States |
End: Newcastle (-104.20494, 43.8547)
Estimated Travel Time
Distance: 268 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 32m |
| 40 mph (64.37 km/h) | 04h 09m |
| 50 mph (80.47 km/h) | 03h 19m |
| 60 mph (96.56 km/h) | 02h 46m |
| 70 mph (112.65 km/h) | 02h 22m |
| 80 mph (129 km/h) | 02h 04m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $22.89 | $45.78 |
| Mid-grade | $4.23 | $24.88 | $49.76 |
| Premium | $4.55 | $26.75 | $53.50 |
| Diesel | $5.41 | $31.82 | $63.65 |
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.