How far is Montopolis, TX from Bay City, TX?
The driving distance from Montopolis, TX to Bay City, TX is about 155.2 miles (249.7 km), with a travel time of about 03h 10m by car.
- The straight-line flight distance is about 135.1 miles (217.5 km).
- For a round trip, plan for roughly 06h 21m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 03h 10m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
City in Colorado County, Texas, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Patchy Fog then Partly Sunny
Driving Route Map
The map below follows the saved road route between Montopolis and Bay City.
Turn-by-Turn Driving Directions
Step-by-step road directions between Montopolis and Bay City.
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1
Start on 183 Toll South: Lockhart
67 m · 5 sec
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2
Merge slight left onto Bergstrom Expressway
1.3 km · 47 sec · Bergstrom Expressway
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3
Continue on Bastrop Highway
2119 ft · 26 sec · Bastrop Highway
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4
Take the exit slight left toward TX 71 East: Austin-Bergstrom International Airport
2541 ft · 1 min
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5
Continue on East State Highway 71
2.2 mi · 3 min · East State Highway 71
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6
Turn straight onto Bastrop Freeway
1.9 mi · 2 min · Bastrop Freeway
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7
Continue on East State Highway 71
2388 ft · 29 sec · East State Highway 71
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8
Continue on Texas State Highway 71
78.7 mi · 1 hr 24 min · Texas State Highway 71
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9
Take the exit slight right toward TX 71 East, TX 71 BUS: Columbus, El Campo
111 m · 9 sec
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10
Continue on TX 71 East, TX 71 BUS: Columbus, El Campo
1368 ft · 36 sec
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11
Turn right onto State Highway 71 South
53.3 mi · 1 hr 11 min · State Highway 71 South
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12
Turn left
10.4 mi · 18 min
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13
At the end of the road, turn left
6.3 mi · 9 min
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14
Arrive at your destination
0 m · 1 sec · 7th Street
Car Route Details
A richer read on the saved driving route between Montopolis and Bay City.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Texas State Highway 71
Continue on Texas State Highway 71
78.7 mi · 01h 24m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Mostly Sunny leaving Montopolis and Patchy Fog then Partly Sunny near Bay City.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Montopolis to Bay City?
The road trip is about 155.2 miles (249.7 km) and usually takes 03h 10m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Columbus is a useful midpoint, sitting about 77.6 miles from Montopolis and 77.5 miles from Bay City.
How much longer is the road route than the straight-line distance?
The direct path is about 135.1 miles (217.5 km), while the road route adds roughly 20.1 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 10:38 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $20.71 one way or $41.42 round trip. Estimated CO2 is about 48.7 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Montopolis and Patchy Fog then Partly Sunny near Bay City.
Stop Ideas Near Columbus
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 Columbus.
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Flight Path Map
This map shows the direct air route between Montopolis and Bay City. Straight-line distance: 135.18 mi (217.55 km).
#1 Montopolis
This Travis County community, situated at an elevation of 469 feet, is known for its Colorado River industrial areas.
| Population | 912,791 |
| Coordinates | 30.2432700, -97.6905600 |
| Altitude | 143 |
| Country | United States |
#2 Bay City
City in Texas
| Population | 17,535 |
| Coordinates | 28.9827600, -95.9694000 |
| Altitude | 16 |
| Country | United States |
End: Bay City (-95.9694, 28.98276)
Estimated Travel Time
Distance: 250 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 10m |
| 40 mph (64.37 km/h) | 03h 52m |
| 50 mph (80.47 km/h) | 03h 06m |
| 60 mph (96.56 km/h) | 02h 35m |
| 70 mph (112.65 km/h) | 02h 13m |
| 80 mph (129 km/h) | 01h 56m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $20.71 | $41.42 |
| Mid-grade | $4.25 | $23.30 | $46.60 |
| Premium | $4.59 | $25.16 | $50.32 |
| Diesel | $3.99 | $21.88 | $43.76 |
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 Texas · May 31, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.