Distance between Boulder MT and Shelby MT
The distance from Boulder to Shelby is 320 kilometers by road including 317 kilometers on motorways. Road takes approximately 3 hours and 25 minutes and goes through Helena, Conrad, Cascade and Dutton.
Shortest distance by air  253 km ✈️ 
Car route length  320 km 🚗 
Driving time  3 h 25 min 
Fuel amount  25.6 L 
Fuel cost  44 CAD 
Point  Distance  Time  Fuel  
Boulder  0 km  00 min  0.0 L  
I 15 17 km, 11 min


Jefferson City  17 km  11 min  1.1 L  
I 15 8 km, 05 min


Clancy  25 km  17 min  1.7 L  
I 15 23 km, 13 min


Helena  48 km  31 min  3.7 L  
I 15 49 km, 29 min


Wolf Creek  97 km  1 h 00 min  7.3 L  
I 15 12 km, 09 min


Craig  109 km  1 h 09 min  8.2 L  
I 15 37 km, 23 min


Cascade  147 km  1 h 33 min  11.6 L  
I 15 89 km, 57 min


Dutton  236 km  2 h 30 min  18.0 L  
I 15 45 km, 28 min


Conrad  280 km  2 h 59 min  22.2 L  
I 15 39 km, 25 min


Shelby  320 km  3 h 25 min  24.6 L 
Hotels of Shelby
Frequently Asked Questions
How much does it cost to drive from Boulder to Shelby?
Fuel cost: 44 CAD
This fuel cost is calculated as: (Route length 320 km / 100 km) * (Fuel consumption 8 L/100 km) * (Fuel price 1.72 CAD / L)
You can adjust fuel consumption and fuel price here.
How long is a car ride from Boulder to Shelby?
Driving time: 3 h 25 min
This time is calculated for driving at the maximum permitted speed, taking into account traffic rules restrictions.
 43 km with a maximum speed 110 km/h = 23 min
 8 km with a maximum speed 105 km/h = 4 min
 161 km with a maximum speed 100 km/h = 1 h 36 min
 107 km with a maximum speed 80 km/h = 1 h 20 min
The calculated driving time does not take into account intermediate stops and traffic jams.
How far is Boulder to Shelby by land?
The distance between Boulder and Shelby is 320 km by road including 317 km on motorways.
Precise satellite coordinates of highways were used for this calculation. The start and finish points are the centers of Boulder and Shelby respectively.
How far is Boulder to Shelby by plane?
The shortest distance (air line, as the crow flies) between Boulder and Shelby is 253 km.
This distance is calculated using the Haversine formula as a greatcircle distance between two points on the surface of a sphere. The start and finish points are the centers of Boulder and Shelby respectively. Actual distance between airports may be different.
How many hours is Boulder from Shelby by plane?
Boeing 737 airliner needs 18 min to cover the distance of 253 km at a cruising speed of 800 km/h.
Small plane "Cessna 172" needs 1 h 9 min to flight this distance at average speed of 220 km/h.
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 Boulder to Shelby?
Fast helicopter "Eurocopter AS350" or "Hughes OH6 Cayuse" need 1 h 3 min to cover the distance of 253 km at a cruising speed of 240 km/h.
Popular "Robinson R44" needs 1 h 12 min to flight this distance at average speed of 210 km/h.
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 Boulder and Shelby?
The halfway point between Boulder and Shelby is Ulm. It is located about 7 km from the exact midpoint by road.
The distance from Ulm to Boulder is 167 km and driving will take about 1 h 47 min. The road between Ulm and Shelby has length 153 km and will take approximately 1 h 38 min.
The other cities located close to halfway point:
Where is Boulder in relation to Shelby?
Boulder is located 253 km south of Shelby.
Boulder has geographic coordinates: latitude 46.2366, longitude 112.12083.
Shelby has geographic coordinates: latitude 48.5054, longitude 111.85723.
Which highway goes from Boulder to Shelby?
The route from Boulder to Shelby follows I 15.
Other minor sections pass along the road:
 US 287: 58 km
 US 89: 18 km
 MT 200: 18 km
 US 2: 2 km
 I 15 Bus: 1 km
 MT 69: 1 km