How to Calculate Gasoline Cost for a Trip
Fuel cost = distance / fuel economy x price per liter. At 18 km/L and 175 JPY/L, driving 300 km costs 300/18 x 175 = about 2917 JPY (uses about 16.7 L).
Open the interactive Everyday Lifestyle tool →Formula: cost = distance / (km/L) x price/L
Key facts
| Formula | cost = distance / (km/L) x price/L |
|---|---|
| Fuel economy | 18 km/L |
| Gasoline price | 175 JPY/L |
| 300 km trip | ~2917 JPY |
| L/100km | 100 / (km/L) |
Frequently asked questions
How much fuel for a 300 km drive at 18 km/L?
About 16.7 L (300 / 18), costing about 2917 JPY at 175 JPY/L.
How do I convert km/L to L/100km?
Divide 100 by km/L. 18 km/L = 100/18 = about 5.6 L/100km.
How do I estimate cost per kilometer?
Price per liter divided by km/L. At 175 JPY/L and 18 km/L it is about 9.7 JPY/km.
Related pages
Fuel Cost Calculator is part of Everyday Lifestyle on GOAT Lab — a free reference you can use without signing up, and it works offline. Open the tool above for any custom value.
Part of GOAT Lab — 26 free, browser-based science, engineering and developer tools. No sign-up.