Gas prices · ID
Idaho gas prices & trip fuel cost
Our working baseline for Idaho is $3.55 per gallon of regular and $3.95 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 Idaho
| Vehicle MPG | 100 miles | 250 miles | 500 miles |
|---|---|---|---|
| 18 MPG | $19.72 | $49.31 | $98.61 |
| 22 MPG | $16.14 | $40.34 | $80.68 |
| 25 MPG | $14.20 | $35.50 | $71.00 |
| 30 MPG | $11.83 | $29.58 | $59.17 |
| 35 MPG | $10.14 | $25.36 | $50.71 |
| 45 MPG | $7.89 | $19.72 | $39.44 |
Cities in Idaho
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.