How far is Spearfish, SD from Belle Fourche, SD?
The driving distance from Spearfish, SD to Belle Fourche, SD is about 13.5 miles (21.8 km), with a travel time of about 00h 17m by car.
- The straight-line flight distance is about 12.5 miles (20.1 km).
- For a round trip, plan for roughly 00h 35m 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 17m.
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.
Census-designated place in Lawrence County, South Dakota, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Driving Route Map
The map below follows the saved road route between Spearfish and Belle Fourche.
Turn-by-Turn Driving Directions
Step-by-step road directions between Spearfish and Belle Fourche.
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1
Start on North Main Street
26 m · 30 sec · North Main Street
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2
Continue on North Main Street
51 m · 10 sec · North Main Street
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3
Turn right onto East Jackson Boulevard
1 km · 2 min · East Jackson Boulevard
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4
Take the ramp left toward I 90 West, US 85 North
1877 ft · 46 sec
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5
Merge slight left
1.5 mi · 1 min
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6
Take the exit slight right toward US 85 North: US 85 North, North Avenue, Belle Fourche
1547 ft · 38 sec
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7
Keep slight left
27 m · 4 sec
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8
Turn right onto US Highway 85
8.9 mi · 11 min · US Highway 85
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9
Continue on 5th Avenue
1.7 mi · 4 min · 5th Avenue
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10
Turn right onto State Street
117 m · 15 sec · State Street
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11
Turn right onto 6th Avenue
8 m · 1 sec · 6th Avenue
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12
Arrive at your destination
0 m · 1 sec · 6th Avenue
Car Route Details
A richer read on the saved driving route between Spearfish and Belle Fourche.
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.
US Highway 85
Turn right onto US Highway 85
8.89 mi · 00h 11m
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.
Sunny leaving Spearfish and Sunny near Belle Fourche.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Spearfish to Belle Fourche?
The road trip is about 13.5 miles (21.8 km) and usually takes 00h 17m 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?
North Spearfish is a useful midpoint, sitting about 6.7 miles from Spearfish and 6.8 miles from Belle Fourche.
How much longer is the road route than the straight-line distance?
The direct path is about 12.5 miles (20.1 km), while the road route adds roughly 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 7:00 AM to 7:00 PM MDT. If you want a more comfortable same-day return, try to leave by 7:54 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $1.81 one way or $3.62 round trip. Estimated CO2 is about 4.3 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Spearfish and Sunny near Belle Fourche.
Stop Ideas Near North Spearfish
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Spearfish, South Dakota
Whitewood City Hall
City of Spearfish Public Works Department
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to North Spearfish.
Flight Path Map
This map shows the direct air route between Spearfish and Belle Fourche. Straight-line distance: 12.48 mi (20.08 km).
#1 Spearfish
City in Lawrence County, South Dakota, United States
| Population | 11,900 |
| Coordinates | 44.4908200, -103.8593700 |
| Altitude | 1112 |
| Country | United States |
#2 Belle Fourche
City in and county seat of Butte County, South Dakota, United States
| Population | 5,742 |
| Coordinates | 44.6713700, -103.8521500 |
| Altitude | 921 |
| Country | United States |
End: 6th Avenue (-103.852143, 44.67137)
Estimated Travel Time
Distance: 22 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 27m |
| 40 mph (64.37 km/h) | 00h 20m |
| 50 mph (80.47 km/h) | 00h 16m |
| 60 mph (96.56 km/h) | 00h 13m |
| 70 mph (112.65 km/h) | 00h 11m |
| 80 mph (129 km/h) | 00h 10m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $1.81 | $3.62 |
| Mid-grade | $4.25 | $2.04 | $4.08 |
| Premium | $4.65 | $2.23 | $4.47 |
| Diesel | $5.30 | $2.55 | $5.09 |
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 · May 02, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.