Fuel Economy Calculator
MPG, L per 100km, km per L + trip cost
MPG
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L/100km
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km/L
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📚 Learn more — how it works, FAQ & guide Click to expand
Learn more — how it works, FAQ & guide
Click to expand
Fuel economy calculator
Convert MPG, L/100km, km/L. Calculate trip and annual fuel cost.
How to use this tool
- 1
Enter distance + fuel
Miles or km driven, gallons or liters consumed.
- 2
See converted rates
MPG, L/100km, km/L all shown.
- 3
Add price
Calculates trip cost and annual fuel budget.
Frequently Asked Questions
MPG vs L/100km
MPG: higher is better (more miles per gallon). L/100km: lower is better (less liters per 100km). Inverse relationship.
Typical values
Compact car: 30-40 MPG / 6-8 L/100km. SUV: 20-25 MPG / 9-12 L/100km. Hybrid: 50+ MPG / 4-5 L/100km.
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