How far is Houston, TX from Smithville, TX?
The driving distance from Houston, TX to Smithville, TX is about 120.3 miles (193.6 km), with a travel time of about 02h 11m by car.
- The straight-line flight distance is about 108.9 miles (175.3 km).
- For a round trip, plan for roughly 04h 23m 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 11m.
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 Polk County, Florida, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms then Showers And Thunderstorms
Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Houston and Smithville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Houston and Smithville.
-
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
-
3
Merge slight right onto Katy Freeway
74.1 mi · 1 hr 21 min · Katy Freeway
-
4
Take the exit slight right toward TX 71 West: La Grange, Austin
2832 ft · 33 sec
-
5
Keep slight left
42.7 mi · 44 min
-
6
Take the exit slight right
1413 ft · 42 sec
-
7
Turn left
2.1 mi · 4 min
-
8
Turn right onto Main Street
13 m · 1 sec · Main Street
-
9
Arrive at your destination
0 m · 1 sec · Main Street
Car Route Details
A richer read on the saved driving route between Houston and Smithville.
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
74.1 mi · 01h 21m
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.
Chance Showers And Thunderstorms then Showers And Thunderstorms leaving Houston and Chance Showers And Thunderstorms near Smithville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Houston to Smithville?
The road trip is about 120.3 miles (193.6 km) and usually takes 02h 11m 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?
Eagle Lake is a useful midpoint, sitting about 60.1 miles from Houston and 60.2 miles from Smithville.
How much longer is the road route than the straight-line distance?
The direct path is about 108.9 miles (175.3 km), while the road route adds roughly 11.4 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 CDT. If you want a more comfortable same-day return, try to leave by 2:06 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $16.06 one way or $32.12 round trip. Estimated CO2 is about 37.8 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms then Showers And Thunderstorms around Houston and Chance Showers And Thunderstorms near Smithville.
Stop Ideas Near Eagle Lake
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 Eagle Lake.
Prairie View, TX
Houston
Houston, TX
Flight Path Map
This map shows the direct air route between Houston and Smithville. Straight-line distance: 108.93 mi (175.3 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 Smithville
City in Texas
| Population | 4,664 |
| Coordinates | 30.0085500, -97.1594300 |
| Altitude | 99 |
| Country | United States |
End: Smithville (-97.15943, 30.00855)
Estimated Travel Time
Distance: 194 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 04h 00m |
| 40 mph (64.37 km/h) | 03h 00m |
| 50 mph (80.47 km/h) | 02h 24m |
| 60 mph (96.56 km/h) | 02h 00m |
| 70 mph (112.65 km/h) | 01h 43m |
| 80 mph (129 km/h) | 01h 30m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $16.06 | $32.12 |
| Mid-grade | $4.25 | $18.07 | $36.14 |
| Premium | $4.59 | $19.51 | $39.02 |
| Diesel | $3.99 | $16.97 | $33.94 |
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 · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.