Origin
Mills, WY
Evening in Mills on Saturday
Local time
8:47 PM
MDT
Current temp
45°F
Unavailable
Live forecast
Trip from Mills, WY to Casper, WY
Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 2026 · Editorial standards
Drive Time
12m
Distance
6.2 mi
10 km
Drive Score
6/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$1
one way
EV Charging
Unknown
Best Time to Leave
4 AM
0h 12m
★
6 AM
0h 13m
8 AM
0h 15m
10 AM
0h 14m
12 PM
0h 13m
3 PM
0h 14m
5 PM
0h 15m
8 PM
0h 12m
★
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Mills, WY
Dan Stone
Casper, WY
Taryn Elliott
Trip Overview
Traveling between Mills and Casper, Wyoming, is a quick 6.2-mile hop that typically takes about 12 minutes to complete. Because these locations are both nestled within the Mountain West region, you will find this transition seamless and straightforward. You won't need to worry about an overnight stay for such a brief distance, making this a perfect candidate for a single-day trip. With a fuel budget of just $1, the route is incredibly economical for your travel plans. Whether you are commuting or running local errands, this connection serves as a practical link between the two areas.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| West 1st Street | 2.1 mi | 3m |
| Bryan Stock Trail | 1.1 mi | 2m |
| East Yellowstone Highway | 1 mi | 1m |
| East Sunlight Drive | 0.9 mi | 3m |
| West Yellowstone Highway | 0.4 mi | <1m |
| 1st Street | 0.3 mi | <1m |
| North Beverly Street | 0.2 mi | <1m |
| Van Horn Avenue | 0.2 mi | <1m |
Longest stretch:
West 1st Street
— 2.1 mi, about 3m
Turn-by-Turn Driving Directions
Step-by-step road directions between Mills, WY and Casper, WY.
1
Start on 1st Street
0.3 mi
·
45 sec
·
1st Street
2
Continue on Van Horn Avenue
0.2 mi
·
32 sec
·
Van Horn Avenue
3
Turn right onto US 20 Business; US 26 Business
0.4 mi
·
37 sec
·
West Yellowstone Highway
4
Continue on US 20 Business; US 26 Business
2.1 mi
·
3 min
·
West 1st Street
5
Turn slight left onto I 25 Business; US 20 Business; US 26 Business; US 87 Business
1.0 mi
·
1 min
·
East Yellowstone Highway
6
Turn left onto I 25 Business; US 20; US 26; US 87
0.2 mi
·
21 sec
·
North Beverly Street
7
Continue on I 25 Business
1.1 mi
·
2 min
·
Bryan Stock Trail
8
Turn left onto East Sunlight Drive
0.9 mi
·
3 min
·
East Sunlight Drive
9
Arrive at destination
North Sunlight Drive
Heads-up: tricky spots
3 of 33 decision points cluster between mile 0.5 and 5.3 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
4
0.5 mi into trip
|
~1m in
|
US 20 Business; US 26 Business / West Yellowstone Highway
Turn right onto US 20 Business; US 26 Business / West Yellowstone Highway
Navigation decision point
3
4 mi into trip
|
~6m in
|
I 25 Business; US 20; US 26; US 87 / North Beverly Street
Turn left onto I 25 Business; US 20; US 26; US 87 / North Beverly Street
Navigation decision point
4
5.3 mi into trip
|
~9m in
|
East Sunlight Drive
Turn left onto East Sunlight Drive
Navigation decision point
Fuel & Cost
Regular Gas
$0.98 one way
$1.96 round trip
$4.03/gal
25.4 MPG avg
2 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.22 | $1.03 | $2.06 |
| premium | $4.53 | $1.11 | $2.21 |
| diesel | $5.61 | $1.37 | $2.74 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$1
Estimated CO2 emission: 2.2 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $1 in charging · 0 stops · 50% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 1.9 | 0 | $0.65 | $0.30 |
| Efficient EV | 1.6 | 0 | $0.54 | $0.25 |
| EV Truck/SUV | 2.5 | 0 | $0.87 | $0.40 |
Gas CO2
2 kg
EV CO2
1 kg (50% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Destination
Casper, WY
Evening in Casper on Saturday
Local time
8:47 PM
MDT
Current temp
44°F
Unavailable
Live forecast
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
1 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
12m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
What kind of drive is this?
Expect a turn-heavy local drive rather than a high-speed interstate cruise, as this route features zero highway miles. Your path primarily follows West 1st Street, the Bryan Stock Trail, and the East Yellowstone Highway. You will encounter frequent adjustments behind the wheel, with your longest uninterrupted stretch lasting only 2.1 miles on West 1st Street. Navigating these local roads requires your full attention as you transition between thoroughfares. The character of the drive remains consistent, prioritizing local accessibility over long-distance highway speed.
Only 0% highway — the rest is turn-by-turn surface driving.
9 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 2.1 mi on West 1st Street.
How Hard Is This Drive?
2/10
Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. Navigation is very simple - set it and forget it for most of the drive. The trickiest moment comes around 0.5 miles in near US 20 Business; US 26 Business / West Yellowstone Highway.
Driving Effort
2/10
Very easy - short and simple to drive
Balances navigation complexity with total wheel time.
The drive from Mills, WY to Casper, WY is easy. At 12m with 0% highway, most drivers will find it relaxed and low-stress.
Where does it get tricky?
The main spots that need attention: at 0.5 miles (US 20 Business; US 26 Business / West Yellowstone Highway): Navigation decision point; at 4 miles (I 25 Business; US 20; US 26; US 87 / North Beverly Street): Navigation decision point; at 5.3 miles (East Sunlight Drive): Navigation decision point.
Who Is This Route For?
Weekend Trip
This super short 6.2-mile drive is ideal for a quick weekend escape, easily done as a round trip in about 12 minutes. You'll be back before you know it.
Family Friendly
With a total distance of just 6.2 miles and a breezy 12-minute drive time, this route is perfect for families. It's short enough that kids won't get bored, and the low complexity (1/10) means no stressful navigation.
Solo Traveler
At a mere 6.2 miles and 12 minutes, this route is comfortable for solo travelers looking for a quick, uncomplicated drive. It's practically a blink-and-you're-there kind of trip.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
This 6.2-mile journey is an excellent choice for first-time drivers, taking only 12 minutes. Its 1/10 complexity rating and minimal turns make it incredibly straightforward.
Scenic Drive
Mostly surface roads route profile.
Frequently Asked Questions
The longest stretch is about 2.1 miles on West 1st Street. The full list of main roads is in the Roads section above.
Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.
Mostly yes along the main roads, but rural stretches through WY can have sparse or no coverage. Before you leave, download offline Google Maps or Apple Maps for the route, and consider downloading music or podcasts instead of streaming. If you depend on data for navigation, keep a paper backup of the turn-by-turn directions.
The main spots that need attention: at 0.5 miles (US 20 Business; US 26 Business / West Yellowstone Highway): Navigation decision point; at 4 miles (I 25 Business; US 20; US 26; US 87 / North Beverly Street): Navigation decision point; at 5.3 miles (East Sunlight Drive): Navigation decision point.
Yes. A round trip is manageable in a single day if you plan a break at Casper, WY before heading back.
How this page is built
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, and EIA for fuel prices. See our methodology for refresh cadence and limitations.
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