How far is Helena, MT from Sidney, MT?
Distance by Flight
Shortest distance between Helena and Sidney is 378.11 miles (608.51 km).
Flight distance from Helena, MT to Sidney, MT is 378.11 miles. Estimated flight time is 00 hours 56 minutes.
It takes 00 hours 50 minutes to travel from Helena to Sidney with an airplane (average speed of 550 miles).
Driving distance
The driving distance from Helena, Montana to Sidney, Montana is: 465.11 miles (748.52 km) by car.
Driving from Helena to Sidney will take approximately 07 hours 27 minutes.
#1 Helena
State capital of Montana, United States and seat of Lewis and Clark County
| Population | 33737 |
|---|---|
| GPS Coordinates | 46°35'34"N 112°2'10"W |
| Latitude | 46.5927100 |
| Longitude | -112.0361100 |
| Altitude | 1237 |
| Country | United States |
#2 Sidney
City in Montana, United States
| Population | 6297 |
|---|---|
| GPS Coordinates | 47°43'0"N 104°9'23"W |
| Latitude | 47.7166800 |
| Longitude | -104.1563300 |
| Altitude | 594 |
| Country | United States |
Ending point in Sidney: North Central Avenue (-104.156325,47.716678)
Estimated Travel Time Between Helena and Sidney
The distance between Helena and Sidney is 749 km if you choose to drive by road. You can go 08 hours 19 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.
There is no time difference between Helena and Sidney. The current time is 10:04:22.
| Average Speed | Travel Time |
|---|---|
| 30 mph (48.3 km/h) | 15 hours 29 minutes |
| 40 mph (64.37 km/h) | 11 hours 37 minutes |
| 50 mph (80.47 km/h) | 09 hours 18 minutes |
| 60 mph (96.56 km/h) | 07 hours 45 minutes |
| 70 mph (112.65 km/h) | 06 hours 38 minutes |
| 75 mph (120.7 km/h) | 06 hours 12 minutes |
| 80 mph (128.75 km/h) | 05 hours 48 minutes |
Gas Consumption
A car with a fuel efficiency of 8.3 l/100 km will need 62.13 liters (16.41 gallon) of gas to cover the route between Helena and Sidney.
The estimated cost of gas to go from Helena to Sidney is $63.27 (diesel $78.53).
Montana gas prices.
| Gasoline | Mid Grade | Premium | Diesel | |
|---|---|---|---|---|
| Gallon | $3.86 | $4.15 | $4.45 | $4.79 |
| Total | $63.27 | $68.09 | $72.95 | $78.53 |
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 Montana ) per gallon of daily gas for calculations is $3.855 (Diesel $4.785) /gallon. Last changed prices on December 21, 2024.
How did we calculate the distance?
The place names are translated into coordinates to approximate the distance between Helena and Sidney (latitude and longitude). Cities, states, and countries each have their own regional center. The Haversine formula is used to measure the radius.
