How far is Mills, WY from Casper, WY?
The driving distance from Mills, WY to Casper, WY is about 6.5 miles (10.5 km), with a travel time of about 00h 12m by car.
- The straight-line flight distance is about 3.2 miles (5.2 km).
- For a round trip, plan for roughly 00h 25m 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 12m.
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.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny then Showers And Thunderstorms Likely
Mostly Sunny then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Mills and Casper.
Turn-by-Turn Driving Directions
Step-by-step road directions between Mills and Casper.
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1
Start on 1st Street
1654 ft · 46 sec · 1st Street
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2
Continue on Van Horn Avenue
1051 ft · 32 sec · Van Horn Avenue
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3
Turn right onto West Yellowstone Highway
2236 ft · 38 sec · West Yellowstone Highway
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4
Continue on West 1st Street
2.1 mi · 3 min · West 1st Street
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5
Turn slight left onto East Yellowstone Highway
1.6 km · 2 min · East Yellowstone Highway
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6
Turn left onto North Beverly Street
1150 ft · 21 sec · North Beverly Street
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7
Continue on Bryan Stock Trail
1.1 mi · 2 min · Bryan Stock Trail
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8
Turn left onto East Sunlight Drive
1.5 km · 4 min · East Sunlight Drive
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9
Arrive at your destination
0 m · 1 sec · North Sunlight Drive
Car Route Details
A richer read on the saved driving route between Mills 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.
West 1st Street
Continue on West 1st Street
2.06 mi · 00h 03m
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.
Mostly Sunny then Showers And Thunderstorms Likely leaving Mills and Mostly Sunny then Chance Showers And Thunderstorms near Casper.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Mills to Casper?
The road trip is about 6.5 miles (10.5 km) and usually takes 00h 12m 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 3.1 miles from Mills and 3.4 miles from Casper.
How much longer is the road route than the straight-line distance?
The direct path is about 3.2 miles (5.2 km), while the road route adds roughly 3.3 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 8:04 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $0.90 one way or $1.79 round trip. Estimated CO2 is about 2 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny then Showers And Thunderstorms Likely around Mills and Mostly Sunny then Chance Showers And Thunderstorms 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 Mills and Casper. Straight-line distance: 3.22 mi (5.19 km).
#1 Mills
Town in Wyoming, United States
| Population | 4,077 |
| Coordinates | 42.8405200, -106.3658600 |
| Altitude | 1562 |
| 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: 10 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 13m |
| 40 mph (64.37 km/h) | 00h 09m |
| 50 mph (80.47 km/h) | 00h 07m |
| 60 mph (96.56 km/h) | 00h 06m |
| 70 mph (112.65 km/h) | 00h 05m |
| 80 mph (129 km/h) | 00h 04m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $0.90 | $1.79 |
| Mid-grade | $4.23 | $0.97 | $1.95 |
| Premium | $4.55 | $1.05 | $2.09 |
| Diesel | $5.41 | $1.24 | $2.49 |
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 16, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.