Gas prices · MT
Montana gas prices & trip fuel cost
Our working baseline for Montana is $3.40 per gallon of regular and $3.85 for diesel. Use it to size up a drive, then fine-tune with the exact pump price you see on the day.
Cost to drive 100 miles in Montana
| Vehicle MPG | 100 miles | 250 miles | 500 miles |
|---|---|---|---|
| 18 MPG | $18.89 | $47.22 | $94.44 |
| 22 MPG | $15.45 | $38.64 | $77.27 |
| 25 MPG | $13.60 | $34.00 | $68.00 |
| 30 MPG | $11.33 | $28.33 | $56.67 |
| 35 MPG | $9.71 | $24.29 | $48.57 |
| 45 MPG | $7.56 | $18.89 | $37.78 |
Cities in Montana
Fuel figures on this page are modelled estimates built from published EPA combined MPG ratings and curated regional pump-price baselines. They are not live station quotes — always confirm the price at the pump before you travel.