USA › Road trip gas calculator › Dallas to Oklahoma City
Dallas to Oklahoma City: gas cost
About 205 miles one way. Fuel cost at this week’s average regular price in Texas: $3.578 per gallon (EIA, week of Nov 2, 2026).
Fuel cost by vehicle
| Vehicle | MPG | Gallons | One way | Round trip |
|---|---|---|---|---|
| Compact car | 35 | 5.9 | $20.96 | $41.91 |
| Midsize sedan | 30 | 6.8 | $24.45 | $48.90 |
| SUV / crossover | 24 | 8.5 | $30.56 | $61.12 |
| Pickup truck | 18 | 11.4 | $40.75 | $81.50 |
💡 Both Texas and Oklahoma are low-tax states, so prices stay low along I-35.
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FAQ
How much does it cost to drive from Dallas to Oklahoma City?
At about 205 miles and this week’s average of $3.578 per gallon (Texas), a car averaging 30 MPG uses about 6.8 gallons – roughly $24.45 one way or $48.90 round trip.
How many gallons of gas from Dallas to Oklahoma City?
About 5.9 gallons for a 35 MPG car, 8.5 for a 24 MPG SUV and 11.4 for an 18 MPG pickup.
Gas prices by state this week → · Gas price history → · More calculators →
Distances are approximate driving distances. Gas prices: U.S. Energy Information Administration weekly averages for regular gasoline; actual prices along the route vary.