Fuel Cost Calculator
Estimate fuel needed and trip cost using L/100 km, km/L, or MPG, with an optional per-passenger cost breakdown.
- Fuel required
- 37.5
- Total cost
- 56.25
- Cost per 100 units
- 11.25
- Cost per person
- 56.25
Estimate fuel and trip cost
Enter trip distance, vehicle efficiency, and the current fuel price. The calculator estimates fuel needed, total cost, and an optional per-passenger share.
Formulas for L/100 km, km/L, and MPG
For L/100 km, fuel equals distance × consumption ÷ 100. For km/L, divide distance by efficiency. In MPG mode, divide miles by miles per US gallon.
Example and real-world conditions
A 500 km trip at 7 L/100 km requires about 35 liters. Multiply that amount by your entered price; traffic, load, weather, terrain, and driving style can affect actual consumption.
Frequently asked questions
How is trip fuel calculated?
The formula is distance × L/100 km ÷ 100, distance ÷ km/L, or miles ÷ MPG, depending on the selected mode.
What is the difference between L/100 km and km/L?
L/100 km reports liters consumed per 100 kilometers; km/L reports distance traveled on one liter.
Does MPG use an imperial gallon?
No. This version uses miles and US gallons.
Does splitting the cost change the fuel required?
No. It only divides the estimated total cost by the passenger count.
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