Car Fuel Calculator
Calculate how much fuel you need and the cost for any trip.
Trip Details
Trip Fuel Cost
$12.50
3.6 gallons (13.5 L)
Trip Summary
Distance100 miles (161 km)
Fuel Needed3.57 gallons
Tanks Needed0.24 tanks
Cost per Mile$0.125
Vehicle Range
420
Miles per Tank
676
KM per Tank
MPG Comparison for This Trip
| MPG | Gallons | Cost |
|---|---|---|
| 15 MPG | 6.7 gal | $23.33 |
| 20 MPG | 5.0 gal | $17.50 |
| 25 MPG | 4.0 gal | $14.00 |
| 30 MPG | 3.3 gal | $11.67 |
| 35 MPG | 2.9 gal | $10.00 |
| 40 MPG | 2.5 gal | $8.75 |
| 45 MPG | 2.2 gal | $7.78 |
| 50 MPG | 2.0 gal | $7.00 |
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.