How far is Medary, SD from Box Elder, SD?

The driving distance from Medary, SD to Box Elder, SD is about 373.5 miles (601.1 km), with a travel time of about 05h 12m by car.

  • The straight-line flight distance is about 311.4 miles (501.1 km).
  • For a round trip, plan for roughly 10h 24m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
373.52 mi
05h 12m
Flight
311.35 mi
501.07 km direct

This drive is better planned with a longer stop or an overnight stay.

Learn Distance

Choose another destination from Medary.

Flight Distance

Direct air line
311.35 mi
Kilometers
501.07 km
Flight Time
00h 37m

Driving Distance

Road route
373.52 mi
Kilometers
601.13 km
Drive Time
05h 12m

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 05h 12m.

Arrival Snapshot
Arrive in Box Elder
Thu, Apr 23, 5:32 AM MDT
Return by in Medary
Thu, Apr 23, 11:44 AM CDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Medary
2026-04-23T01:20
Arrive Box Elder
Thu, Apr 23, 6:32 AM CDT
Route Timing
05h 12m
One way by road
Best Departure Window
6:00 AM to 8:00 AM CDT
Leave early for more breathing room
Arrive between
10:12 AM to 12:12 PM MDT

An early departure helps you fit a real stop into the day without turning the return into a late-night drive.

Leave by
6:36 AM CDT
Keeps a same-day return open with about 04h 00m at the destination.
Back in Medary
9:00 PM CDT
Early departure recommended

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
Reliance
SD

Town in Lyman County, South Dakota, United States

From Medary
186.5 mi
02h 36m
To Box Elder
187 mi
02h 36m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
77°F
Thursday

Chance Showers And Thunderstorms

Starts
Thu, Apr 23 6:00 AM CDT
Wind
25 mph SSW
Destination
58°F
Thursday

Light Rain Likely

Starts
Thu, Apr 23 6:00 AM MDT
Wind
17 to 36 mph W

Driving Route Map

The map below follows the saved road route between Medary and Box Elder.

Turn-by-Turn Driving Directions

Step-by-step road directions between Medary and Box Elder.

  1. 1

    Start on 471st Avenue

    4 mi · 5 min · 471st Avenue

  2. 2

    Turn left onto 223rd Street

    1.4 mi · 3 min · 223rd Street

  3. 3

    Take the ramp right

    1333 ft · 33 sec

  4. 4

    Merge slight left

    37.1 mi · 35 min

  5. 5

    Take the exit slight right toward Interstate 90 West: Rapid City

    2517 ft · 1 min

  6. 6

    Merge slight left

    328.8 mi · 5 hr 9 min

  7. 7

    Take the exit slight right toward Box Elder, Elisworth AirForce Base

    1962 ft · 48 sec

  8. 8

    Keep slight left

    28 m · 7 sec

  9. 9

    Turn left onto Liberty Boulevard

    2562 ft · 52 sec · Liberty Boulevard

  10. 10

    Turn right onto Highway 1416

    1.5 km · 2 min · Highway 1416

  11. 11

    Turn left onto Oak Street

    671 ft · 32 sec · Oak Street

  12. 12

    Turn right onto Front Street

    29 m · 4 sec · Front Street

  13. 13

    Arrive at your destination

    0 m · 1 sec · Front Street

Car Route Details

A richer read on the saved driving route between Medary and Box Elder.

OSRM road route
Drive Character

Long-distance drive

This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.

Directions
13 steps
5 turns on the saved route
Ramps & Exits
5
2 merges, 3 ramps or exits
Navigation Density
3.5 / 100 mi
Decision points by distance
Main Roads
Interstate 90 West
330 mi · 88%
223rd Street
38.7 mi · 10%
471st Avenue
3.97 mi · 1%
Highway 1416
0.9 mi
Liberty Boulevard
0.49 mi
Oak Street
0.13 mi
Longest Stretch

Interstate 90 West

Merge slight left

329 mi · 05h 09m

Route Summary

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

Trip Read

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.

Drive Time
05h 12m
Long day trip
Same-Day Return
10h 24m
Round-trip wheel time
Road vs Air
+62.1 mi
311.4 mi direct line
Halfway Stop
Reliance
02h 36m from Medary
Leave By
6:36 AM CDT
Early departure recommended
Weather Watch

Chance Showers And Thunderstorms leaving Medary and Light Rain Likely near Box Elder.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Medary to Box Elder?

The road trip is about 373.5 miles (601.1 km) and usually takes 05h 12m 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?

Reliance is a useful midpoint, sitting about 186.5 miles from Medary and 187 miles from Box Elder.

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

The direct path is about 311.4 miles (501.1 km), while the road route adds roughly 62.1 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 CDT. If you want a more comfortable same-day return, try to leave by 6:36 AM CDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $49.70 one way or $99.40 round trip. Estimated CO2 is about 117.1 kg one way.

Do you cross a time zone on this route?

Yes. There is about a 1 hour time difference between Medary and Box Elder, so arrival and return times should be read in local time.

What should you check before leaving?

Before you leave, expect Chance Showers And Thunderstorms around Medary and Light Rain Likely near Box Elder.

Flight Path Map

This map shows the direct air route between Medary and Box Elder. Straight-line distance: 311.35 mi (501.07 km).

Photo coming soon

#1 Medary

Township in Brookings County, South Dakota

Population1,504
Coordinates44.2096900, -96.7867200
Altitude480
CountryUnited States
Box Elder

#2 Box Elder

City in Pennington County, South Dakota, United States

Population7,165
Coordinates44.1124900, -103.0682300
Altitude925
CountryUnited States
Start: 471st Avenue (-96.787181, 44.209685)
End: Front Street (-103.068237, 44.112405)

Estimated Travel Time

Distance: 601 km by road

SpeedTime
30 mph (48.3 km/h)12h 26m
40 mph (64.37 km/h)09h 20m
50 mph (80.47 km/h)07h 28m
60 mph (96.56 km/h)06h 13m
70 mph (112.65 km/h)05h 20m
80 mph (129 km/h)04h 39m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
13.18 gal
49.89 L · about $49.70
Round trip
$99.40
26.36 gal · 99.78 L
Estimated CO2
117.1 kg one way
Round trip: 234.3 kg / 517 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.77 $49.70 $99.40
Mid-grade $4.25 $56.05 $112.11
Premium $4.65 $61.34 $122.68
Diesel $5.30 $69.91 $139.81

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 South Dakota · Apr 23, 2026

Please keep in mind that there is a 1 hour time gap between Medary, SD and Box Elder, SD. The current time in Medary is 01:20:02, although it is 00:20:02 in Box Elder.

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.