How far is Dallas, TX from Smithville, TX?
The driving distance from Dallas, TX to Smithville, TX is about 234.3 miles (377 km), with a travel time of about 04h 05m by car.
- The straight-line flight distance is about 192.8 miles (310.3 km).
- For a round trip, plan for roughly 08h 11m 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 04h 05m.
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 Bell County, Texas
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Dallas and Smithville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Dallas and Smithville.
-
1
Start on North Lamar Street
1233 ft · 34 sec · North Lamar Street
-
2
Turn right onto Elm Street
1125 ft · 31 sec · Elm Street
-
3
Continue on Elm Street
709 ft · 14 sec · Elm Street
-
4
Take the ramp straight toward I 30, I 35E
100 m · 8 sec
-
5
Keep slight left to continue on I 30 West, I 35E South
835 ft · 20 sec
-
6
Keep slight right to continue on I 35E South
101 m · 8 sec
-
7
Merge slight right onto South Stemmons Freeway
1.4 km · 1 min · South Stemmons Freeway
-
8
Continue on South R L Thornton Freeway
2866 ft · 44 sec · South R L Thornton Freeway
-
9
Continue on South R L Thornton Freeway
89.3 mi · 1 hr 32 min · South R L Thornton Freeway
-
10
Continue on North Jack Kultgen Expressway
6.6 mi · 8 min · North Jack Kultgen Expressway
-
11
Continue on Purple Heart Trail
37.9 mi · 39 min · Purple Heart Trail
-
12
Keep slight left
26.5 mi · 27 min
-
13
Take the exit slight right toward TX 130 Toll South: San Antonio
1.1 km · 56 sec
-
14
Continue straight
37 mi · 35 min
-
15
Take the exit slight right toward TX 71: Austin, Houston, Barbara Jordan Terminal, Austin–Bergstrom International Airport
1651 ft · 40 sec
-
16
Turn straight onto State Highway 130
3226 ft · 2 min · State Highway 130
-
17
Turn left onto East State Highway 71
126 m · 7 sec · East State Highway 71
-
18
Take the ramp straight toward TX 71 East: Houston
1.2 km · 48 sec · East State Highway 71
-
19
Continue on Texas State Highway 71
30 mi · 33 min · Texas State Highway 71
-
20
Take the exit slight right
960 ft · 26 sec
-
21
Keep slight left
536 ft · 15 sec
-
22
Turn right onto Loop 230
1.5 mi · 2 min · Loop 230
-
23
Continue on Royston Street
781 ft · 20 sec · Royston Street
-
24
Turn left onto 3rd Street
1350 ft · 34 sec · 3rd Street
-
25
Turn left onto Main Street
13 m · 1 sec · Main Street
-
26
Arrive at your destination
0 m · 1 sec · Main Street
Car Route Details
A richer read on the saved driving route between Dallas 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.
South R L Thornton Freeway
Continue on South R L Thornton Freeway
89.3 mi · 01h 32m
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.
Chance Showers And Thunderstorms leaving Dallas 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 Dallas to Smithville?
The road trip is about 234.3 miles (377 km) and usually takes 04h 05m 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?
Troy is a useful midpoint, sitting about 117.3 miles from Dallas and 116.9 miles from Smithville.
How much longer is the road route than the straight-line distance?
The direct path is about 192.8 miles (310.3 km), while the road route adds roughly 41.5 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 8:48 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $31.25 one way or $62.50 round trip. Estimated CO2 is about 73.5 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms around Dallas and Chance Showers And Thunderstorms near Smithville.
Stop Ideas Near Troy
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 Troy.
Temple
McGregor
Killeen, Texas
Waco, TX
Flight Path Map
This map shows the direct air route between Dallas and Smithville. Straight-line distance: 192.82 mi (310.32 km).
#1 Dallas
The ninth most populous city in the United States and the center of the Dallas-Fort Worth metropolitan area.
| Population | 1,343,266 |
| Coordinates | 32.7830600, -96.8066700 |
| Altitude | 128 |
| 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: 377 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 48m |
| 40 mph (64.37 km/h) | 05h 51m |
| 50 mph (80.47 km/h) | 04h 41m |
| 60 mph (96.56 km/h) | 03h 54m |
| 70 mph (112.65 km/h) | 03h 20m |
| 80 mph (129 km/h) | 02h 55m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $31.25 | $62.50 |
| Mid-grade | $4.25 | $35.16 | $70.33 |
| Premium | $4.59 | $37.97 | $75.94 |
| Diesel | $3.99 | $33.02 | $66.04 |
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.