How far is Houston, TX from Lockhart, TX?
The driving distance from Houston, TX to Lockhart, TX is about 155.5 miles (250.2 km), with a travel time of about 02h 50m by car.
- The straight-line flight distance is about 138.5 miles (222.9 km).
- For a round trip, plan for roughly 05h 40m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
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 02h 50m.
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.
City in Colorado County, Texas, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Mostly Cloudy
Driving Route Map
The map below follows the saved road route between Houston and Lockhart.
Turn-by-Turn Driving Directions
Step-by-step road directions between Houston and Lockhart.
-
1
Start on Louisiana Street
761 ft · 25 sec · Louisiana Street
-
2
Take the ramp straight toward I 10 West: San Antonio
2149 ft · 52 sec
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3
Merge slight right onto Katy Freeway
136.2 mi · 2 hr 23 min · Katy Freeway
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4
Take the exit slight right toward US 90, US 183: Luling, Lockhart
1788 ft · 46 sec
-
5
Merge slight left onto East Pierce Street
3.9 mi · 6 min · East Pierce Street
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6
Turn right onto South Magnolia Avenue
1.2 mi · 2 min · South Magnolia Avenue
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7
Continue on US 183
10.1 mi · 12 min · US 183
-
8
Continue on South Colorado Street
3.1 mi · 6 min · South Colorado Street
-
9
Turn right onto East San Antonio Street
40 m · 8 sec · East San Antonio Street
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10
Turn right
17 m · 4 sec
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11
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Houston and Lockhart.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Katy Freeway
Merge slight right onto Katy Freeway
136 mi · 02h 23m
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.
Partly Sunny leaving Houston and Mostly Cloudy near Lockhart.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Houston to Lockhart?
The road trip is about 155.5 miles (250.2 km) and usually takes 02h 50m 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?
Columbus is a useful midpoint, sitting about 77.6 miles from Houston and 77.9 miles from Lockhart.
How much longer is the road route than the straight-line distance?
The direct path is about 138.5 miles (222.9 km), while the road route adds roughly 17 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 CDT. If you want a more comfortable same-day return, try to leave by 12:50 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $20.75 one way or $41.49 round trip. Estimated CO2 is about 48.8 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Houston and Mostly Cloudy near Lockhart.
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.
Prairie View, TX
Bryan, TX
Houston
Houston, TX
Flight Path Map
This map shows the direct air route between Houston and Lockhart. Straight-line distance: 138.52 mi (222.93 km).
#1 Houston
The fourth most populous city in the United States and the center of the Houston metropolitan area.
| Population | 2,316,120 |
| Coordinates | 29.7632800, -95.3632700 |
| Altitude | 12 |
| Country | United States |
#2 Lockhart
City in Texas, USA
| Population | 14,069 |
| Coordinates | 29.8849400, -97.6700000 |
| Altitude | 157 |
| Country | United States |
End: Lockhart (-97.67, 29.88494)
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 53m |
| 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 | $20.75 | $41.49 |
| Mid-grade | $4.25 | $23.34 | $46.69 |
| Premium | $4.59 | $25.20 | $50.41 |
| Diesel | $3.99 | $21.92 | $43.84 |
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 05, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.