Killeen to La Porte is 225.3 miles and takes about 4h 27m via North Earl Rudder Freeway, with a fuel budget near $33 and enough daylight to finish in a day. This drive primarily stays within the Great Plains region of Texas, offering a straightforward route. With over half the trip on highways, you'll experience a mix of faster cruising and more local road driving. Plan for a single day to cover the distance, as it's easily manageable within daylight hours. Expect a consistent driving experience without major geographical shifts.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
112.6 miles from Killeen, TX
A natural place for your longest stop of the day
, about 2h 15m into the drive
.
Main Roads
Road
Distance
Duration
North Earl Rudder Freeway
30.1 mi
31m
Aggie Expressway
24.7 mi
27m
FM 485
20.4 mi
25m
Farm-to-Market Road 979
15.3 mi
19m
South State Highway 6
13.7 mi
14m
North Sam Houston Tollway East
13.2 mi
15m
West Adams Avenue
12 mi
14m
Central Texas Expressway
10.7 mi
11m
Longest stretch:
North Earl Rudder Freeway
— 30.1 mi, about 31m
Turn-by-Turn Driving Directions
Step-by-step road directions between Killeen, TX and La Porte, TX.
1
Start on this road
74 ft·10 sec·this road
2
Turn left
83 ft·11 sec
3
Turn left onto US 190 Bus
5.1 mi·8 min·East Veterans Memorial Boulevard
4
Turn slight right onto Edwards Drive
0.5 mi·55 sec·Edwards Drive
5
Take the ramp
0.6 mi·1 min
Toward I 14 East, US 190 East
6
Merge onto I 14; US 190
11 mi·11 min·Central Texas Expressway
Use the straight / slight right lanes.
7
Merge onto I 35; US 190
6.8 mi·7 min·Purple Heart Trail
Use the straight / slight right lanes.
8
Take the exit
0.2 mi·29 sec
Exit 301Toward TX 53, FM 2305: Central Avenue, Adams AvenueUse the slight right lane.
9
Turn straight onto South General Bruce Drive
0.2 mi·17 sec·South General Bruce Drive
Toward TX 53, FM 2305
10
Turn slight right
222 ft·8 sec
11
Turn slight right onto TX 53
1.0 mi·1 min·West Central Avenue
12
Turn left onto TX 53; Spur 290
216 ft·3 sec·North 3rd Street
13
Turn right onto TX 53
12 mi·14 min·West Adams Avenue
14
Turn right onto FM 485
20 mi·25 min·FM 485
15
Turn left onto FM 979
15 mi·19 min·Farm-to-Market Road 979
16
Continue on FM 979
0.7 mi·1 min·Browning Street
17
Turn right onto TX 6
1.3 mi·2 min·South Main Street
18
Continue on TX 6
6.2 mi·6 min·North State Highway 6
19
Continue on US 79; TX 6
2.1 mi·2 min·North Market Street
20
Continue on US 190; TX 6
14 mi·14 min·South State Highway 6
21
Continue on US 190; TX 6
30 mi·31 min·North Earl Rudder Freeway
22
Continue on TX 6
3.4 mi·3 min·State Highway 6
23
Take the exit
0.2 mi·28 sec
Toward East TX 105, Spur 515: Conroe
24
Turn straight onto TX 105
0.2 mi·24 sec·State Highway 6
25
Turn left onto TX 105
5.9 mi·6 min·State Highway 105
26
Turn straight onto TX 249
25 mi·27 min·Aggie Expressway
Use the straight / slight right lanes.
27
Continue on TX 249 Toll
3.6 mi·4 min·MCTRA 249 Tollway
Use the straight / slight right lanes.
28
Continue on TBT
7.0 mi·8 min·Tomball Tollway
Use the straight / slight right lanes.
29
Continue on TX 249
7.8 mi·8 min·Tomball Parkway
Use the straight / slight right lanes.
30
Take the exit
1.0 mi·2 min
Toward SHT East: Sam Houston Tollway EastUse the slight right lane.
31
Merge onto SHT
1.6 mi·1 min·North Sam Houston Tollway West
32
Keep slight right at fork onto SHT
2.6 mi·3 min·North Sam Houston Tollway West
Use the slight right lane.
33
Continue on BW 8
9.3 mi·10 min·North Sam Houston Parkway West
Use the straight / slight right lanes.
34
Continue on SHT
13 mi·15 min·North Sam Houston Tollway East
Use the straight / slight right lanes.
35
Continue on BW 8
4.3 mi·4 min·East Sam Houston Parkway North
Use the straight / slight right lanes.
36
Continue on SHT
3.1 mi·4 min·East Sam Houston Tollway North
37
Take the exit
0.1 mi·16 sec
Toward TX 225: Deer Park, HoustonUse the straight / slight right lanes.
38
Continue on this road
0.2 mi·23 sec·this road
Toward TX 225: Deer Park, Houston
39
Continue on BW 8
0.2 mi·29 sec·East Sam Houston Parkway South
Toward Texas 225: Deer Park, Houston
40
Turn left onto Pasadena Freeway Frontage Road
0.2 mi·22 sec·Pasadena Freeway Frontage Road
Use the straight / left lanes.
41
Take the ramp
0.2 mi·20 sec
Toward TX 225 East
42
Merge onto TX 225
0.2 mi·14 sec·Pasadena Freeway
43
Continue on TX 225
6.8 mi·7 min·La Porte Freeway
Use the straight / slight right lanes.
44
Keep slight right at fork
0.6 mi·1 min
Toward TX 146 South: La PorteUse the slight right lane.
45
Merge onto TX 146
0.9 mi·1 min·TX 146
46
Take the exit
0.2 mi·29 sec
Toward TX 146 BusinessUse the slight right lane.
47
Turn straight onto State Highway 146 North
0.2 mi·26 sec·State Highway 146 North
Use the straight / left / right lanes.
48
Turn left onto TX 146 Business
0.6 mi·1 min·West Main Street
Use the left / straight lanes.
49
Turn left onto North Broadway Street
174 ft·37 sec·North Broadway Street
50
Continue on North Broadway Street
12 ft·0 sec·North Broadway Street
51
Arrive at destination
North Broadway Street
Trip Plan
Given the 4h 27m estimated duration, leaving Killeen in the morning allows ample time to reach La Porte before evening. The drive is straightforward enough that you likely won't need more than one planned stop for fuel or a break. Keep an eye on your fuel gauge, as the estimated cost is $33, and it's always wise to top off before heading into longer stretches. The flexibility of a single-day drive means you can adjust your departure time based on your morning plans.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 112.6 miles from Killeen, TX, or about 2h 15m into the drive.
The longest continuous stretch on this route runs about 30.1 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 50 miles or 1h 3m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 112.6 miles or 2h 15m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 37m
Traffic, exits, and arrival timing usually matter more near La Porte, TX than in the middle of the route.
Before You Leave
+
Open the route before leaving Killeen, TX so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Killeen, TX
This is one driving day of about 225.3 miles and 4h 27m.
Your first comfortable stop window is around 50 miles from Killeen, TX.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on North Earl Rudder Freeway for about 30.1 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 29
5 decision points cluster between mile 23.8 and 222.8 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
8
23.8 mi into trip|~29m in
Take the exit toward TX 53, FM 2305: Central Avenue, Adams Avenue
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 301
Toward TX 53, FM 2305: Central Avenue, Adams Av...
6
179.8 mi into trip|~3h 30m in
Take the exit toward SHT East: Sam Houston Tollway East
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the slight right lane.
Toward SHT East: Sam Houston Tollway East
7
215 mi into trip|~4h 12m in
Take the exit toward TX 225: Deer Park, Houston
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward TX 225: Deer Park, Houston
7
215.5 mi into trip|~4h 13m in|Pasadena Freeway Frontage Road
Turn left onto Pasadena Freeway Frontage Road
Lane positioning matters here
Use the straight / left lanes.
7
222.8 mi into trip|~4h 22m in
Keep slight right at fork toward TX 146 South: La Porte
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight right lane.
Toward TX 146 South: La Porte
Fuel & Cost
Regular Gas
$30.86 one way
$61.72 round trip
$3.48/gal25.4 MPG avg79 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$3.89
$34.47
$68.94
premium
$4.23
$37.48
$74.95
diesel
$4.80
$42.54
$85.08
Estimated Tolls: $2.38
Sam Houston Tollway
(20.5 mi)$1.64
Tomball Tollway
(7 mi)$0.49
MCTRA 249 Tollway
(3.6 mi)$0.25
Toll estimates based on average 2024-2025 rates. EZ-Pass/SunPass discounts may lower the actual cost.
Estimated Trip Cost (one way, 1 person)
Fuel
$31
Tolls
$2
Meals
$25–$50
Total
$58–$83
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 78.8 kg one way.
Prices: EIA weekly data, 2026-07-13.
Driving Electric?
About $24 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
67.6
0
$23.66
$10.81
Efficient EV
56.3
0
$19.71
$9.01
EV Truck/SUV
90.1
1
$31.54
$14.42
Gas CO2
79 kg
EV CO2
26 kg (67% less)
Plan for 0 charging stops, roughly every 270 miles. Allow 25-40 minutes per stop at a DC fast charger.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Jul 18, 2026
Origin
Killeen, TX
Evening
in Killeen on Monday
Local time
6:48 PM
CDT
Current temp
94°F
Mostly Sunny
S 10 to 15 mph1% chanceLive forecast
Destination
La Porte, TX
Evening
in La Porte on Monday
Local time
6:48 PM
CDT
Current temp
91°F
Unavailable
Live forecast
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
3 degrees cooler at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
4h 27m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
More Details
What kind of drive is this?
This route features 64% highway driving, with the longest uninterrupted stretch at 30.1 miles on North Earl Rudder Freeway. You'll transition to surface roads at various points, with the initial portion dominated by highway travel. Expect a moderate number of exits and merges as you navigate through different Texas landscapes. The drive generally offers efficient progress, especially on the highway segments.
64% highway — fuel and pacing are the main things to plan.
51 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 30.1 mi on North Earl Rudder Freeway.
How Hard Is This Drive?
10/10
This is a straightforward highway drive that stays mostly on North Earl Rudder Freeway and Aggie Expressway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 23.8 miles in.
Driving Effort10/10
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 29 significant decision points across 225.3 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 23.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 179.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 215 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Elevation Profile
Mostly flat terrain
823 ft19 ft
Total Climb
145 ft
Total Descent
949 ft
Highest Point
823 ft
Elevation Range
804 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Killeen, TX and La Porte, TX, road signs point toward Fm 2305, Spur 515: Conroe and Sht East: Sam Houston Tollway East.
Killeen is a city in the Central Hill Country of Texas. It is home to U.S. Army installation Fort Cavasos, one of the largest military bases in the world.
Top landmarks
•Killeen High School — historic place in Killeen, Bell County, Texas
Doable as a same-day drive at 4h 27m. Total distance: 225.3 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 27m drive, comfortable solo distance.
Frequently Asked Questions
The longest stretch is about 30.1 miles on North Earl Rudder Freeway. The full list of main roads is in the Roads section above.
Expect about $2.38 in tolls one way, starting with Sam Houston Tollway. Most Northeast and Midwest toll agencies accept E-ZPass; in the West and Texas, transponders like TxTag or FasTrak apply. If you do not have a transponder, cashless tolling plates will mail a bill to the vehicle's registered address — usually with a surcharge, so a rental-car toll pass is often cheaper than paying by mail.
We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at La Porte, TX before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 1 meaningful breaks. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.
The main spots that need attention: at 23.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 179.8 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 215 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Possible but tiring. At 4.5 hours each way, an in-and-out day trip would put you behind the wheel for 8.9 hours — manageable with a long break at La Porte, TX, but most travelers stay overnight.
