How far is Killeen, TX from Mercedes, TX?
The driving distance from Killeen, TX to Mercedes, TX is about 406.3 miles (653.8 km), with a travel time of about 07h 04m by car.
- The straight-line flight distance is about 343.4 miles (552.6 km).
- For a round trip, plan for roughly 14h 09m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 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 07h 04m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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.
Town in Atascosa County, Texas, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Killeen and Mercedes.
Turn-by-Turn Driving Directions
Step-by-step road directions between Killeen and Mercedes.
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1
Start on the route
23 m · 11 sec
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2
Turn left
25 m · 8 sec
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3
Turn right onto East Veterans Memorial Boulevard
1.5 km · 2 min · East Veterans Memorial Boulevard
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4
Turn left onto South Fort Hood Street
33.8 mi · 38 min · South Fort Hood Street
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5
Take the exit slight right
999 ft · 17 sec
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6
Continue on North Interstate 35
1035 ft · 16 sec · North Interstate 35
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7
Take the ramp straight toward TX 130 Toll South: San Antonio
858 ft · 21 sec
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8
Continue straight
86.1 mi · 1 hr 19 min
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9
Keep slight right to continue on I 10 West: San Antonio
3262 ft · 1 min
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10
Merge slight left
11.1 mi · 11 min
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11
Continue straight
9.4 mi · 9 min
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12
Keep slight left
12 mi · 13 min
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13
Keep slight right to continue on Connally Loop
1.4 mi · 2 min · Connally Loop
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14
Merge slight left onto Connally Loop
6.7 mi · 7 min · Connally Loop
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15
Take the exit slight right toward I 37, US 281 North: San Antonio, Corpus Christi
1184 ft · 29 sec
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16
Keep slight left to continue on I 37 South: Corpus Christi
2457 ft · 1 min
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17
Merge slight left
60.5 mi · 1 hr 1 min
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18
Take the exit slight right toward US 281 South
15.2 mi · 19 min
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19
Keep slight left to continue on South Nueces Street
66.2 mi · 1 hr 10 min · South Nueces Street
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20
Keep slight left
9.5 mi · 10 min
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21
Keep slight left to continue on Falfurrias Expressway
55.8 mi · 59 min · Falfurrias Expressway
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22
Keep slight left
18.4 mi · 20 min
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23
Merge slight left
2577 ft · 34 sec
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24
Continue straight
15.9 mi · 18 min
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25
Take the exit slight right toward FM 491: Texas Avenue
1976 ft · 48 sec
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26
Turn straight onto Expressway 83
615 ft · 18 sec · Expressway 83
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27
Turn right onto North Texas Avenue
2225 ft · 47 sec · North Texas Avenue
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28
Arrive at your destination
0 m · 1 sec · South Texas Avenue
Car Route Details
A richer read on the saved driving route between Killeen and Mercedes.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
TX 130 Toll South
Continue straight
86.1 mi · 01h 19m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Partly Sunny leaving Killeen and Mostly Sunny near Mercedes.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Killeen to Mercedes?
The road trip is about 406.3 miles (653.8 km) and usually takes 07h 04m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
Christine is a useful midpoint, sitting about 203.6 miles from Killeen and 202.7 miles from Mercedes.
How much longer is the road route than the straight-line distance?
The direct path is about 343.4 miles (552.6 km), while the road route adds roughly 62.9 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 7:30 AM CDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $54.19 one way or $108.38 round trip. Estimated CO2 is about 127.4 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Killeen and Mostly Sunny near Mercedes.
Stop Ideas Near Christine
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 Christine.
San Antonio Station
Flight Path Map
This map shows the direct air route between Killeen and Mercedes. Straight-line distance: 343.39 mi (552.64 km).
#1 Killeen
The 11th most populous city in Texas.
| Population | 153,991 |
| Coordinates | 31.1171200, -97.7278000 |
| Altitude | 252 |
| Country | United States |
#2 Mercedes
City in Texas, USA
| Population | 16,598 |
| Coordinates | 26.1498000, -97.9136100 |
| Altitude | 21 |
| Country | United States |
End: Mercedes (-97.91361, 26.1498)
Estimated Travel Time
Distance: 654 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 13h 32m |
| 40 mph (64.37 km/h) | 10h 09m |
| 50 mph (80.47 km/h) | 08h 07m |
| 60 mph (96.56 km/h) | 06h 46m |
| 70 mph (112.65 km/h) | 05h 48m |
| 80 mph (129 km/h) | 05h 04m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $54.19 | $108.38 |
| Mid-grade | $4.25 | $60.97 | $121.95 |
| Premium | $4.59 | $65.83 | $131.67 |
| Diesel | $3.99 | $57.26 | $114.52 |
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 17, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.