Fuel Cost & Efficiency Calculator: Trip Fuel Expenses & Real MPG
Fuel Cost & Efficiency Calculator
Whether you’re planning a road trip or tracking monthly commute costs, knowing your fuel expenses in advance makes budgeting far easier.
Fuel Cost Calculator
Fuel Cost Calculator
Trip Cost Estimator
Common Routes
Fuel Type
Total Fuel Cost
₩44,688
Cost per Person
₩44,688
Fuel Efficiency Calculator
Want to know your car’s actual real-world fuel economy? Use the full-tank method for the most accurate result.
Fuel Efficiency Calculator
Mileage & Cost Estimator
Real Fuel Economy
Enter distance driven and fuel used to calculate actual fuel economy.
Fuel Economy
12.00 km/L
Unit Converter
Edit any field to auto-update the other two.
Annual Fuel Cost
Enter annual mileage, fuel economy, and price per liter.
Annual Fuel Cost
₩2,125,000
Monthly Avg Cost
₩177,083
Fuel Economy Reference
| Fuel Type | Avg Economy | Price/L |
|---|---|---|
| Gasoline | 12 km/L | 1,650원 |
| Diesel | 15 km/L | 1,550원 |
| LPG | 10 km/L | 950원 |
| Hybrid | 20 km/L | 1,650원 |
| Electric | 6 km/kWh | 180원/kWh |
Eco-Driving Habits to Boost Efficiency
Eco-driving can improve fuel efficiency by up to 20%.
| Habit | Fuel Savings |
|---|---|
| Avoid aggressive acceleration/braking | +10–15% |
| Maintain correct tire pressure | +3–5% |
| Minimize A/C usage | +5–10% |
| Remove unnecessary trunk weight | +1–3% |
| Steady highway speed (100 km/h) | Optimal efficiency range |
Ways to Cut Fuel Costs
| Method | How It Helps |
|---|---|
| Use self-service (pay-at-pump) stations | Significantly cheaper per liter / gallon |
| Fuel company credit card | Discount with partner cards |
| GasBuddy / Opinet equivalent | Find lowest nearby price |
| Fill up in the morning | Cooler fuel = slightly higher density |
Accurate efficiency measurement: Fill the tank completely at the start, drive normally, then refill at the same pump. Record liters added and distance driven for a precise km/L calculation.
OIYO Editorial
Editorial DeskThe OIYO editorial desk researches money, law, lifestyle, and self-understanding topics against primary sources and public statistics. Every piece carries source notes and is reviewed on a regular cycle for accuracy and usefulness.