How far is Casper, WY from Mills, WY?
The driving distance from Casper, WY to Mills, WY is about 6.2 miles (10 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 Chance Showers And Thunderstorms
Mostly Sunny then Showers And Thunderstorms Likely
Driving Route Map
The map below follows the saved road route between Casper and Mills.
Turn-by-Turn Driving Directions
Step-by-step road directions between Casper and Mills.
-
1
Start on North Sunlight Drive
1368 ft · 1 min · North Sunlight Drive
-
2
Turn right
770 ft · 34 sec
-
3
Turn right onto East Sunlight Drive
2655 ft · 2 min · East Sunlight Drive
-
4
At the end of the road, turn right onto Bryan Stock Trail
1.1 mi · 2 min · Bryan Stock Trail
-
5
Continue on North Beverly Street
1150 ft · 25 sec · North Beverly Street
-
6
Turn right onto East Yellowstone Highway
1.6 km · 2 min · East Yellowstone Highway
-
7
Turn slight right onto East 1st Street
2.1 mi · 3 min · East 1st Street
-
8
Continue on West Yellowstone Highway
2236 ft · 44 sec · West Yellowstone Highway
-
9
Turn left onto Van Horn Avenue
1051 ft · 29 sec · Van Horn Avenue
-
10
Continue on 1st Street
1654 ft · 46 sec · 1st Street
-
11
Arrive at your destination
0 m · 1 sec · 1st Street
Car Route Details
A richer read on the saved driving route between Casper and Mills.
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.
East 1st Street
Turn slight right onto East 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 Chance Showers And Thunderstorms leaving Casper and Mostly Sunny then Showers And Thunderstorms Likely near Mills.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Casper to Mills?
The road trip is about 6.2 miles (10 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 Casper and 3.1 miles from Mills.
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 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 $0.86 one way or $1.71 round trip. Estimated CO2 is about 2 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny then Chance Showers And Thunderstorms around Casper and Mostly Sunny then Showers And Thunderstorms Likely near Mills.
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 Mills. Straight-line distance: 3.22 mi (5.19 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 Mills
Town in Wyoming, United States
| Population | 4,077 |
| Coordinates | 42.8405200, -106.3658600 |
| Altitude | 1562 |
| Country | United States |
End: Mills (-106.36586, 42.84052)
Estimated Travel Time
Distance: 10 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 12m |
| 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 | $0.86 | $1.71 |
| Mid-grade | $4.23 | $0.93 | $1.86 |
| Premium | $4.55 | $1.00 | $2.00 |
| Diesel | $5.41 | $1.19 | $2.38 |
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.