How far is Lockwood, MT from Roundup, MT?
The driving distance from Lockwood, MT to Roundup, MT is about 52.1 miles (83.9 km), with a travel time of about 01h 00m by car.
- The straight-line flight distance is about 43.7 miles (70.3 km).
- For a round trip, plan for roughly 02h 01m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM MDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 01h 00m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Town in Montana, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Lockwood and Roundup.
Turn-by-Turn Driving Directions
Step-by-step road directions between Lockwood and Roundup.
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1
Start on Johnson Lane
1156 ft · 33 sec · Johnson Lane
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2
Take the ramp right
2235 ft · 54 sec
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3
Merge slight left
1.8 mi · 2 min
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4
Take the exit slight right toward I 90 Business, US 87 North: Lockwood, Roundup
1389 ft · 36 sec
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5
Merge slight left onto US Highway 87 East
1.2 mi · 1 min · US Highway 87 East
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6
Take the exit slight right
3.5 mi · 6 min
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7
Turn slight left onto Roundup Road
44.4 mi · 49 min · Roundup Road
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8
Turn left onto Main Street
1245 ft · 21 sec · Main Street
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9
Arrive at your destination
0 m · 1 sec · Main Street
Car Route Details
A richer read on the saved driving route between Lockwood and Roundup.
Interchange-aware route
The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.
Roundup Road
Turn slight left onto Roundup Road
44.4 mi · 00h 49m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Sunny leaving Lockwood and Sunny near Roundup.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Lockwood to Roundup?
The road trip is about 52.1 miles (83.9 km) and usually takes 01h 00m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Broadview is a useful midpoint, sitting about 26 miles from Lockwood and 26 miles from Roundup.
How much longer is the road route than the straight-line distance?
The direct path is about 43.7 miles (70.3 km), while the road route adds roughly 8.4 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 8:00 AM to 10:00 AM MDT. If you want a more comfortable same-day return, try to leave by 4:28 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $7.16 one way or $14.33 round trip. Estimated CO2 is about 16.4 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Lockwood and Sunny near Roundup.
Stop Ideas Near Broadview
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Broadview.
Billings, MT
Flight Path Map
This map shows the direct air route between Lockwood and Roundup. Straight-line distance: 43.69 mi (70.31 km).
#1 Lockwood
Human settlement in Yellowstone County, Montana, United States of America
| Population | 6,797 |
| Coordinates | 45.8191200, -108.4148600 |
| Altitude | 943 |
| Country | United States |
#2 Roundup
City in Musselshell County, Montana, United States
| Population | 1,864 |
| Coordinates | 46.4452400, -108.5418000 |
| Altitude | 980 |
| Country | United States |
End: Roundup (-108.5418, 46.44524)
Estimated Travel Time
Distance: 84 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 44m |
| 40 mph (64.37 km/h) | 01h 18m |
| 50 mph (80.47 km/h) | 01h 02m |
| 60 mph (96.56 km/h) | 00h 52m |
| 70 mph (112.65 km/h) | 00h 44m |
| 80 mph (129 km/h) | 00h 39m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.89 | $7.16 | $14.33 |
| Mid-grade | $4.23 | $7.79 | $15.57 |
| Premium | $4.55 | $8.37 | $16.74 |
| Diesel | $5.41 | $9.96 | $19.92 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Montana · Apr 18, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.