How far is Spearfish, SD from Watertown, SD?

Fastest route

The distance between Spearfish, SD and Watertown, SD is 332.33 miles (534.62 kilometers) by car, following the I-90 and US-14 E route. The drive time is approximately 6 hours and 18 minutes. The halfway point is Reliance, SD.

Here are some recommended routes from Spearfish to Watertown by car:

  • Route 1: 6 hours and 18 minutes, 332.33 miles
    • US-14 W
    • I-90 W
    • US-14 W
  • Route 2: 6 hours and 23 minutes, 336.8 miles
    • US-14 W
    • I-90 W
    • US-212 W
    • SD-14 S
  • Route 3: 6 hours and 37 minutes, 373.8 miles
    • US-14 W
    • I-90 W
    • US-14 W
    • SD-34 W

Distance by Flight

Shortest distance between Spearfish and Watertown is 332.35 miles (534.87 km).

Flight distance from Spearfish, SD to Watertown, SD is 332.35 miles. Estimated flight time is 00 hours 46 minutes.

It takes 00 hours 41 minutes to travel from Spearfish to Watertown with an airplane (average speed of 550 miles).

Driving distance

The driving distance from Spearfish, South Dakota to Watertown, South Dakota is: 383.99 miles (617.97 km) by car.

Driving from Spearfish to Watertown will take approximately 06 hours 36 minutes.

Watertown image
#1 Spearfish

City in Lawrence County, South Dakota, United States

Population 11900
GPS Coordinates 44°29'27"N 103°51'34"W
Latitude 44.4908200
Longitude -103.8593700
Altitude 1112
Country United States
Watertown image
#2 Watertown

City in and county seat of Codington County, South Dakota, United States

Population 22303
GPS Coordinates 44°53'58"N 97°6'54"W
Latitude 44.8994100
Longitude -97.1150700
Altitude 528
Country United States

Estimated Travel Time Between Spearfish and Watertown

The distance between Spearfish and Watertown is 618 km if you choose to drive by road. You can go 06 hours 51 minutes if you drive your car at an average speed of 90 kilometers / hour. For different choices, please review the avg. speed travel time table on the below.

Please keep in mind that there is a 1 hour time gap between Spearfish, SD and Watertown, SD. The current time in Spearfish is 20:52:54, although it is 21:52:54 in Watertown.

Average Speed Travel Time
30 mph (48.3 km/h) 12 hours 47 minutes
40 mph (64.37 km/h) 09 hours 36 minutes
50 mph (80.47 km/h) 07 hours 40 minutes
60 mph (96.56 km/h) 06 hours 23 minutes
70 mph (112.65 km/h) 05 hours 29 minutes
75 mph (120.7 km/h) 05 hours 07 minutes
80 mph (128.75 km/h) 04 hours 47 minutes

Gas Consumption

A car with a fuel efficiency of 8.3 l/100 km will need 51.29 liters (13.55 gallon) of gas to cover the route between Spearfish and Watertown.
The estimated cost of gas to go from Spearfish to Watertown is $47.8 (diesel $63.93).

South Dakota gas prices.

Gasoline Mid Grade Premium Diesel
Gallon $3.53 $3.72 $4.2 $4.72
Total $47.8 $50.36 $56.91 $63.93

Take a look at our Gas Cost Calculator feature. It will figure out how much it will cost to drive this particular distance.

The average gas price (in South Dakota ) per gallon of daily gas for calculations is $3.528 (Diesel $4.718) /gallon. Last changed prices on November 13, 2024.

How did we calculate the distance?

The place names are translated into coordinates to approximate the distance between Spearfish and Watertown (latitude and longitude). Cities, states, and countries each have their own regional center. The Haversine formula is used to measure the radius.

Distance to Other Cities

Watertown image

Driving distance from Brandon, SD to Spearfish 395.67 miles (637 km)

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Driving distance from Harrisburg, SD to Spearfish 402.35 miles (648 km)

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Driving distance from Madison, SD to Spearfish 389.9 miles (627 km)

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Driving distance from Mitchell, SD to Spearfish 320.94 miles (517 km)

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Driving distance from Sioux Falls, SD to Spearfish 393.25 miles (633 km)

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Driving distance from Tea, SD to Spearfish 392.42 miles (632 km)

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Driving distance from Yankton, SD to Spearfish 401.82 miles (647 km)

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Driving distance from Belle Fourche, SD to Spearfish 13.54 miles (22 km)

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Driving distance from Box Elder, SD to Spearfish 54.76 miles (88 km)

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Driving distance from Pierre, SD to Spearfish 193.73 miles (312 km)

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Driving distance from Rapid City, SD to Spearfish 47.96 miles (77 km)

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Driving distance from Sturgis, SD to Spearfish 20.15 miles (32 km)

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