International Fuel Calculator

1. Enter planned distance

Use total driving distance in kilometers, including all legs of the itinerary.

2. Choose the economy format

Select liters per 100 kilometers or U.S. miles per gallon to match the vehicle information.

3. Enter vehicle efficiency

Use a realistic combined-driving figure rather than the best-case highway rating.

4. Enter the local pump price

Use destination currency per liter.

5. Enter the exchange rate

Specify how much home currency equals one unit of destination currency.

6. Add a distance buffer

Allow for detours, local driving, and route changes.

7. Review fuel and cost totals

Use both the liters required and converted home-currency cost when budgeting.

Adjusted distance = Distance × (1 + Buffer rate ÷ 100)For L/100 km: Fuel liters = Adjusted distance × Fuel economy ÷ 100For MPG: Fuel liters = (Adjusted distance ÷ 1.609344) ÷ MPG × 3.785411784Local fuel cost = Fuel liters × Local price per literHome-currency cost = Local fuel cost × Exchange rate

Where:

• MPG — U.S. miles traveled per U.S. gallon
• Exchange rate — home-currency units per one destination-currency unit
• Buffer rate — extra distance percentage

Assumptions: Fuel price and exchange rate remain constant for the modeled drive, and the chosen fuel economy represents average real-world use.

What the result means

The main result is the estimated fuel cost converted to the traveler’s home currency.

Rental fuel policies, one-way return fees, tolls, and parking are not included.

Given:

• Distance: 1,200 km
• Fuel economy: 7.5 L/100 km
• Fuel price: 1.85 local units/L
• Exchange rate: 0.74 home units per local unit
• Buffer: 8%

Calculation:

Adjusted distance = 1,200 × 1.08 = 1,296 km

Fuel required = 1,296 × 7.5 ÷ 100 = 97.2 L

Local cost = 97.2 × 1.85 = 179.82 local units

Home cost = 179.82 × 0.74 = 133.07 home units

Result: 133.07 home-currency units.

Interpretation: The route is expected to consume 97.2 liters after allowing for additional driving.