Math
Fuel Cost Calculator
Calculate the exact fuel cost of any trip. Works with both metric (L/100km) and imperial (MPG) measurements. Perfect for road trip planning, commute costs, and comparing car running costs.
Fuel cost reference — at $1.50/L for different distances
| Distance | 5L/100km | 8L/100km | 12L/100km |
|---|---|---|---|
| 50 km | $3.75 | $6.00 | $9.00 |
| 100 km | $7.50 | $12.00 | $18.00 |
| 200 km | $15.00 | $24.00 | $36.00 |
| 300 km | $22.50 | $36.00 | $54.00 |
| 500 km | $37.50 | $60.00 | $90.00 |
| 1000 km | $75.00 | $120.00 | $180.00 |
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Frequently Asked Questions
How do I calculate fuel cost for a trip?
Fuel cost = (Distance ÷ 100) × Fuel consumption (L/100km) × Fuel price per liter. For example: 300km trip at 8L/100km at $1.50/L = (300÷100) × 8 × $1.50 = $36.
How do I calculate fuel cost in MPG?
For MPG: Gallons used = Distance (miles) ÷ MPG. Then multiply by price per gallon. For example: 200 miles at 30 MPG at $3.50/gallon = 6.67 gallons × $3.50 = $23.33.
What is a good fuel efficiency?
A fuel-efficient small car typically achieves 5–6L/100km (40–47 MPG). Average family cars use 7–9L/100km (26–34 MPG). SUVs and trucks typically use 10–14L/100km (17–24 MPG). Hybrid cars can achieve 4–5L/100km.
How can I improve my fuel efficiency?
Drive at steady speeds (highway speeds of 90–100 km/h are most efficient), keep tires properly inflated, remove unnecessary weight from your car, use cruise control, and avoid rapid acceleration and braking.
How do I convert L/100km to MPG?
To convert L/100km to MPG (US): MPG = 235.21 ÷ L/100km. For example: 8L/100km = 235.21 ÷ 8 = 29.4 MPG. To convert MPG to L/100km: L/100km = 235.21 ÷ MPG.