How far is Casper, WY from Bar Nunn, WY?

The driving distance from Casper, WY to Bar Nunn, WY is about 6.5 miles (10.5 km), with a travel time of about 00h 13m by car.

  • The straight-line flight distance is about 3.6 miles (5.8 km).
  • For a round trip, plan for roughly 00h 27m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 7:00 AM to 7:00 PM MDT.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
6.52 mi
00h 13m
Flight
3.59 mi
5.77 km direct

This is an easy same-day return drive.

Learn Distance

Choose another destination from Casper.

Flight Distance

Direct air line
3.59 mi
Kilometers
5.77 km
Flight Time

Driving Distance

Road route
6.52 mi
Kilometers
10.5 km
Drive Time
00h 13m

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 13m.

Arrival Snapshot
Arrive in Bar Nunn
Sat, Apr 18, 4:20 AM MDT
Return by in Casper
Sat, Apr 18, 4:34 AM MDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Casper
2026-04-18T04:06
Arrive Bar Nunn
Sat, Apr 18, 4:20 AM MDT
Route Timing
00h 13m
One way by road
Best Departure Window
7:00 AM to 7:00 PM MDT
Leave when it suits your day
Arrive between
7:14 AM to 7:14 PM MDT

This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.

Leave by
8:02 PM MDT
Keeps a same-day return open with about 01h 30m at the destination.
Back in Casper
10:00 PM MDT
Flexible departure

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.

Mid-route stop
Mills
WY

Town in Wyoming, United States

From Casper
3.2 mi
00h 06m
To Bar Nunn
3.3 mi
00h 06m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
48°F
Saturday

Sunny

Starts
Sat, Apr 18 6:00 AM MDT
Wind
9 to 16 mph WSW
Destination
47°F
Saturday

Mostly Sunny

Starts
Sat, Apr 18 6:00 AM MDT
Wind
14 to 17 mph W

Driving Route Map

The map below follows the saved road route between Casper and Bar Nunn.

Turn-by-Turn Driving Directions

Step-by-step road directions between Casper and Bar Nunn.

  1. 1

    Start on North Sunlight Drive

    1368 ft · 1 min · North Sunlight Drive

  2. 2

    Turn right

    770 ft · 34 sec

  3. 3

    Turn right onto East Sunlight Drive

    2655 ft · 2 min · East Sunlight Drive

  4. 4

    At the end of the road, turn left onto Bryan Stock Trail

    2196 ft · 44 sec · Bryan Stock Trail

  5. 5

    Continue on Amoco Road

    2.3 mi · 4 min · Amoco Road

  6. 6

    At the end of the road, turn right onto North Poplar Street

    1.3 mi · 2 min · North Poplar Street

  7. 7

    Turn left onto Howard Street

    1355 ft · 31 sec · Howard Street

  8. 8

    Turn right onto Salt Creek Highway

    1.1 mi · 2 min · Salt Creek Highway

  9. 9

    Turn left onto Sunset Boulevard

    1336 ft · 37 sec · Sunset Boulevard

  10. 10

    Arrive at your destination

    0 m · 1 sec · Sunset Boulevard

Car Route Details

A richer read on the saved driving route between Casper and Bar Nunn.

OSRM road route
Drive Character

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.

Directions
10 steps
7 turns on the saved route
Ramps & Exits
0
0 merges, 0 ramps or exits
Navigation Density
153.8 / 100 mi
Decision points by distance
Main Roads
Amoco Road
2.32 mi · 36%
North Poplar Street
1.3 mi · 20%
Salt Creek Highway
1.07 mi · 16%
East Sunlight Drive
0.5 mi · 8%
Bryan Stock Trail
0.42 mi · 6%
North Sunlight Drive
0.26 mi · 4%
Longest Stretch

Amoco Road

Continue on Amoco Road

2.32 mi · 00h 04m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

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.

Drive Time
00h 13m
Quick drive
Same-Day Return
00h 28m
Round-trip wheel time
Road vs Air
+2.9 mi
3.6 mi direct line
Halfway Stop
Mills
00h 06m from Casper
Leave By
8:02 PM MDT
Flexible departure
Weather Watch

Sunny leaving Casper and Mostly Sunny near Bar Nunn.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Casper to Bar Nunn?

The road trip is about 6.5 miles (10.5 km) and usually takes 00h 13m 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?

Mills is a useful midpoint, sitting about 3.2 miles from Casper and 3.3 miles from Bar Nunn.

How much longer is the road route than the straight-line distance?

The direct path is about 3.6 miles (5.8 km), while the road route adds roughly 2.9 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 8:02 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 Sunny around Casper and Mostly Sunny near Bar Nunn.

Stop Ideas Near Mills

Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.

Mid-route Guidance
Local place coverage is thin around Mills, so nearby transit and meeting points are shown instead.
Reviewed stop coverage is still thin around this midpoint, so practical transit waypoints are shown on the right.

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Mills.

BUS

Casper, Wyoming

4 mi away
123 West E St.
BUS

Douglas, Wyoming

81 mi away
628 East Richards St.

Flight Path Map

This map shows the direct air route between Casper and Bar Nunn. Straight-line distance: 3.59 mi (5.77 km).

Casper

#1 Casper

The most populous city in Natrona County, Wyoming.

Population58,498
Coordinates42.8666300, -106.3130800
Altitude1560
CountryUnited States
Bar Nunn

#2 Bar Nunn

Town of the United States

Population2,870
Coordinates42.9135800, -106.3433600
Altitude1611
CountryUnited States
Start: Casper (-106.31308, 42.86663)
End: Bar Nunn (-106.34336, 42.91358)

Estimated Travel Time

Distance: 11 km by road

SpeedTime
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.

One-way fuel
0.23 gal
0.87 L · about $0.90
Round trip
$1.79
0.46 gal · 1.74 L
Estimated CO2
2 kg one way
Round trip: 4.1 kg / 9 lb CO2, using regular gasoline.
Fuel$/galOne wayRound 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 18, 2026

There is no time difference between Casper and Bar Nunn. The current time is 04:06:35.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.