Houston to Dallas Fuel Cost
Driving distance and fuel cost for a trip from Houston, TX to Dallas, TX: 239.0 miles (384.7 km) one way. Use the calculator below with your own vehicle and fuel price.
Calculator Parameters
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Your Calculation Results
Average Consumption (5.5 - 8.5 L/100km)- Total Fuel Needed (for this trip)
- 7.97 US gallons (30.2 liters total)
- Total Fuel Cost (for this trip)
- $11.95
- Cost breakdown per distance unit
- $0.050 per mile • $0.031 per km
Fuel economy in every unit
- L/100km
- 7.8
- MPG US
- 30.0
- MPG UK
- 36.0
- km/L
- 12.8
Cost by vehicle type
One way trip cost at $1.50 per US gallon (placeholder price), using one representative vehicle from each category in the 30 vehicle dataset tracked on this site.
| Category | Vehicle | Combined | Fuel needed | Cost |
|---|---|---|---|---|
| Economy | Hyundai Elantra | 34 MPG | 7.0 US gallons | $10.54 |
| Midsize Sedan | Nissan Altima | 31 MPG | 7.7 US gallons | $11.56 |
| Compact SUV | Toyota RAV4 | 30 MPG | 8.0 US gallons | $11.95 |
| Midsize SUV | Chevrolet Traverse | 23 MPG | 10.4 US gallons | $15.59 |
| Truck | Ford F-150 | 21 MPG | 11.4 US gallons | $17.07 |
| Hybrid | Honda CR-V Hybrid | 40 MPG | 6.0 US gallons | $8.96 |
| Electric | Tesla Model Y | 120 MPGe | 2.0 US gallons | $2.99 |
About this route & highway corridor
At 239.0 miles (384.7 km) and approximately 4.2 hours of continuous driving via Interstate 45 North/South corridor (I-45), Houston to Dallas represents an easy single-day journey or weekend road trip. Because driving takes place predominantly at sustained highway speeds, overall fuel consumption tracks closer to your vehicle's official highway EPA rating.
Traveling north on I-45, both Houston and Dallas boast very low fuel prices. High-speed cruising at 75 mph will reduce highway MPG, so maintaining steady speeds is key to fuel savings. This route traverses Gentle rolling Piney Woods and central Texas prairie; flat, fast interstate driving with 75 mph speed limits.. Toll considerations: No mandatory tolls on I-45; optional Houston tollways (Hardy Toll Road).
Because this journey stays within TX, state gasoline taxes remain uniform, though retail prices can vary by 20 to 40 cents per gallon between rural highway exits and congested metropolitan centers. High-volume travel centers in Madisonville (Buc-ee's) and Centerville offer some of the cheapest gas in the nation.
With a total distance of 239 miles, almost all modern passenger cars and SUVs can cover the Houston to Dallas route on a single full tank of fuel.
Plan on roughly 1 to 2 rest or refueling stops along the Houston to Dallas drive. To maximize fuel economy, maintain steady speeds between 65 and 70 mph; aerodynamic drag causes fuel consumption to increase by roughly 10% for every 5 mph driven over 65 mph.
Distance and driving time source: OpenStreetMap Nominatim geocoding and OSRM driving routing. Last updated July 24, 2026.
Gas Prices & Fuel Planning for Houston to Dallas
Fuel prices vary along this driving corridor. Check current average fuel benchmarks at both ends of your trip to plan the most economical fill-ups:
Specialized Fuel Calculators for This Trip
Reverse route
Dallas to Houston Trip CostNearby routes
Frequently asked questions
The standard highway driving route from Houston to Dallas covers 239.0 miles (384.7 km) and takes approximately 4.2 hours in typical traffic conditions, traveling primarily via Interstate 45 North/South corridor (I-45).
Divide the trip distance of 239.0 miles by your car's combined MPG rating to find the gallons of fuel required, then multiply by the average pump price along your route. For example, a 30 MPG vehicle will burn roughly 8.0 gallons of fuel.
No mandatory tolls on I-45; optional Houston tollways (Hardy Toll Road). Terrain notes: Gentle rolling Piney Woods and central Texas prairie; flat, fast interstate driving with 75 mph speed limits..
High-volume travel centers in Madisonville (Buc-ee's) and Centerville offer some of the cheapest gas in the nation.
With a total distance of 239 miles, almost all modern passenger cars and SUVs can cover the Houston to Dallas route on a single full tank of fuel.
The physical road distance is identical in both directions. However, fuel costs may vary depending on where you purchase gas, as state fuel tax rates and prevailing winds (such as headwinds when driving west) can slightly influence consumption and spending.