⛽ Fuel Cost Calculator
Calculate fuel costs for any trip. Enter distance, your vehicle's fuel efficiency, and current gas prices to see total cost. Supports metric and imperial units.
miles
MPG
$/gallon
Fuel Efficiency Conversion
| MPG | L/100km | Rating |
|---|---|---|
| 10 MPG | 23.5 L/100km | Very Poor |
| 20 MPG | 11.8 L/100km | Below Average |
| 30 MPG | 7.8 L/100km | Average |
| 40 MPG | 5.9 L/100km | Good |
| 50+ MPG | 4.7 L/100km | Excellent |
Tips to Save Fuel
- Maintain steady speed — avoid rapid acceleration and braking
- Keep tires properly inflated
- Remove excess weight from the vehicle
- Use cruise control on highways
Frequently Asked Questions
How do I calculate fuel cost for a trip?
Multiply the trip distance by your vehicle's fuel consumption rate, then multiply by the fuel price per unit. Our calculator does this automatically.
What is a good fuel efficiency?
For gas cars: 25-35 MPG is average, 40+ MPG is excellent. For hybrids: 50+ MPG. For EVs: equivalent of 100+ MPG (MPGe).
How do I convert L/100km to MPG?
MPG = 235.215 ÷ L/100km. For example, 8 L/100km ≈ 29.4 MPG.
Should I use imperial or metric units?
Use whichever is standard in your region. US uses MPG and gallons; most of the world uses L/100km. Our calculator supports both.