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Create accountDrive Time
4h 59m
Distance
286 mi
460 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$45
one way
EV Charging
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station data
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Helena, MT
Paul Campbell
Hardin, MT
Alex Moliski
The drive from Helena, MT to Hardin, MT covers 286 miles and takes about 4h 59m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on I 90, US 12, US 287 for much of the mileage, and the overall profile is highway-focused drive. The longest uninterrupted segment is about 220 miles on I 90. At current regular gas prices, budget about $45.32 one way before food or hotel costs.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
143 miles from Helena, MT
A natural place for your longest stop of the day , about 2h 35m into the drive .
This is a 4h 59m highway drive covering 286 miles, with most of the trip on I 90 and US 12. The longest continuous stretch is about 220 miles on I 90.
High-altitude sections with notable climbs
Total Climb
2,128 ft
Total Descent
2,047 ft
Highest Point
5,357 ft
~107.3 mi in
Elevation Range
1,514 ft
Notable High Points
This is a straightforward highway drive that stays mostly on I 90 and US 12. There are only a few real navigation decisions along the way. The trickiest moment comes early in the drive near I 15 Business / 11th Avenue.
Easy - simple navigation with a manageable amount of wheel time
This is a straightforward 4h 59m drive. You will face about 7 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: near the start (I 15 Business / 11th Avenue): Lane positioning matters here; at 64.5 miles: Exit ramp - move to the correct lane early; at 245.6 miles (I 90; US 87; US 212): Highway fork - watch signs carefully.
These are the spots where you need to pay the most attention. Preview them before you drive.
Turn left onto I 15 Business / 11th Avenue
Lane positioning matters here
Take the exit toward I 90 East: Billings
Exit ramp - move to the correct lane early
Keep slight right at fork onto I 90; US 87; US 212 toward I 90 East: Sheridan
Highway fork - watch signs carefully
Take the exit onto I 90 Business toward I 90 Business, MT 47: Hardin City Center
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Turn left onto North Crawford Avenue
Navigation decision point
| Road | Distance | Duration |
|---|---|---|
| I 90 | 220 mi | 3h 39m |
| US 12 | 34.1 mi | 40m |
| US 287 | 27.6 mi | 29m |
| 11th Avenue | 1.4 mi | 3m |
| Prospect Avenue | 1.3 mi | 2m |
| North Crawford Avenue | 0.8 mi | 2m |
| I 90 Business | 0.3 mi | <1m |
| I 90 Bus | 0.1 mi | <1m |
Step-by-step road directions between Helena, MT and Hardin, MT.
Start on I 15 Business
Turn left onto I 15 Business
Turn straight onto I 15 Business; US 12
Continue on US 12; US 287
Continue on US 12; US 287
Continue on US 12; US 287
Continue on US 287
Continue on US 287
Continue on US 287
Continue on US 287
Take the exit
Merge onto I 90
Keep slight right at fork onto I 90; US 87; US 212
Take the exit onto I 90 Business
Turn right onto I 90 Bus; MT 47
Continue on North Crawford Avenue
Turn left onto North Crawford Avenue
Arrive at destination
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 80 miles or 1h 32m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 143 miles or 2h 35m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 7m
Traffic, exits, and arrival timing usually matter more near Hardin, MT than in the middle of the route.
Open the route before leaving Helena, MT so your first major turns are already loaded.
Leave with enough water and a charging cable within reach, not packed away.
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Helena, MT
This is one driving day of about 286 miles and 4h 59m.
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 143 mi from Helena, MT · 2h 35m into the drive
Mid-route town
Meal stop
143 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
A short stop after about 80 miles helps settle the day before fatigue starts building.
The midpoint is around 143 miles from Helena, MT, which is a good place for a longer meal and fuel stop.
Before the longest stretch
Fuel checkTop up before I 90 if your tank is already low. That segment runs about 220 miles.
The final approach into Hardin, MT usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Hardin, MT.
After long uninterrupted mileage, take five minutes before the last urban segment to reset and refocus on exits, merges, and city traffic.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Regular Gas
$45.32 one way
$90.64 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.23 | $47.64 | $95.28 |
| premium | $4.53 | $51.00 | $101.99 |
| diesel | $5.64 | $63.54 | $127.08 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$45
Meals
$25–$50
Total
$70–$95
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 100.1 kg one way. Prices: EIA weekly data, 2026-04-06.
Driving Electric?
About $30 in charging · 1 stop · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 85.8 | 1 | $30.03 | $13.73 |
| Efficient EV | 71.5 | 0 | $25.03 | $11.44 |
| EV Truck/SUV | 114.4 | 1 | $40.04 | $18.30 |
Gas CO2
100 kg
EV CO2
33 kg (67% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Current conditions at both ends of the drive.
Origin
Evening in Helena on Sunday
Local time
7:45 PM
MDT
Current temp
59°F
Partly Sunny then Slight Chance Showers And Thunderstorms
Destination
Evening in Hardin on Sunday
Local time
7:45 PM
MDT
Current temp
71°F
Sunny then Slight Chance Showers And Thunderstorms
Along the Route
32°F
Livingston, MT
143 mi in
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
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