Distance between Spearfish SD and Dunmore MT
The distance from Spearfish to Dunmore is 273 miles by road including 272 miles on motorways. Road takes approximately 4 hours and 17 minutes and goes through Gillette, Sheridan, Sundance and Crow Agency.
| Shortest distance by air | 196 mi ✈️ |
| Car route length | 272.8 mi 🚗 |
| Driving time | 4 h 17 min |
| Fuel amount | 9.3 gal |
| Fuel cost | 36 USD |
| Point | Distance | Time | Fuel | |
| Spearfish | 0 mi | 00 min | 0.0 gal | |
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I 90 14 mi, 13 min
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| Beulah | 14 mi | 13 min | 0.5 gal | |
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I 90 18 mi, 17 min
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| Sundance | 32 mi | 31 min | 1.0 gal | |
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I 90 15 mi, 15 min
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| Linden | 47 mi | 46 min | 1.6 gal | |
|
I 90 19 mi, 16 min
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| Moorcroft | 66 mi | 1 h 03 min | 2.2 gal | |
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I 90 28 mi, 24 min
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| Gillette | 94 mi | 1 h 27 min | 3.1 gal | |
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I 90 99 mi, 1 h 34 min
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| Sheridan | 193 mi | 3 h 02 min | 6.3 gal | |
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I 90 19 mi, 20 min
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| Ranchester | 212 mi | 3 h 22 min | 7.2 gal | |
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I 90 56 mi, 50 min
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| Crow Agency | 268 mi | 4 h 13 min | 9.0 gal | |
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I 90 4 mi, 04 min
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| Dunmore | 273 mi | 4 h 17 min | 9.3 gal | |
Frequently Asked Questions
How much does it cost to drive from Spearfish to Dunmore?
Fuel cost: 36 USD
This fuel cost is calculated as: (Route length 272.8 mi) / (Fuel consumption 29.4 mpg) * (Fuel price 3.88 USD / gal)
You can adjust fuel consumption and fuel price here.
How long is a car ride from Spearfish to Dunmore?
Driving time: 4 h 17 min
This time is calculated for driving at the maximum permitted speed, taking into account traffic rules restrictions.
- 143 mi with a maximum speed 68 mph = 2 h 6 min
- 106 mi with a maximum speed 62 mph = 1 h 42 min
- 23 mi with a maximum speed 50 mph = 27 min
- 1 mi with a maximum speed 25 mph = 1 min
The calculated driving time does not take into account intermediate stops and traffic jams.
How far is Spearfish to Dunmore by land?
The distance between Spearfish and Dunmore is 272.8 mi by road including 271.5 mi on motorways.
Precise satellite coordinates of highways were used for this calculation. The start and finish points are the centers of Spearfish and Dunmore respectively.
How far is Spearfish to Dunmore by plane?
The shortest distance (air line, as the crow flies) between Spearfish and Dunmore is 195.7 mi.
This distance is calculated using the Haversine formula as a great-circle distance between two points on the surface of a sphere. The start and finish points are the centers of Spearfish and Dunmore respectively. Actual distance between airports may be different.
How many hours is Spearfish from Dunmore by plane?
Boeing 737 airliner needs 23 min to cover the distance of 196 mi at a cruising speed of 497 mph.
Small plane "Cessna 172" needs 1 h 25 min to flight this distance at average speed of 136 mph.
This time is approximate and do not take into account takeoff and landing times, airport location and other real world factors.
How long is a helicopter ride from Spearfish to Dunmore?
Fast helicopter "Eurocopter AS350" or "Hughes OH-6 Cayuse" need 1 h 18 min to cover the distance of 196 mi at a cruising speed of 149 mph.
Popular "Robinson R44" needs 1 h 30 min to flight this distance at average speed of 130 mph.
This time is approximate and do not take into account takeoff and landing times, aerodrome location and other real world factors.
What city is halfway between Spearfish and Dunmore?
The halfway point between Spearfish and Dunmore is Gillette. It is located about 42 mi from the exact midpoint by road.
The distance from Gillette to Spearfish is 94 mi and driving will take about 1 h 27 min. The road between Gillette and Dunmore has length 179 mi and will take approximately 2 h 49 min.
Where is Spearfish in relation to Dunmore?
Spearfish is located 196 mi south-east of Dunmore.
Spearfish has geographic coordinates: latitude 44.49082, longitude -103.85937.
Dunmore has geographic coordinates: latitude 45.67855, longitude -107.50471.
Which highway goes from Spearfish to Dunmore?
The route from Spearfish to Dunmore follows I 90, US 87, US 14.
Other minor sections pass along the road:
- US 16: 25 mi
- US 212: 7 mi
- US 85: 1 mi
