Fuel Consumption Calculator
Enter distance, fuel used and fuel price to calculate consumption and cost.
Liters per 100 km shows average fuel consumption. Cost per kilometer and total fuel cost translate that consumption into a practical budget estimate.
How to read the result
Liters per 100 km shows average fuel consumption. Cost per kilometer and total fuel cost translate that consumption into a practical budget estimate.
How is fuel consumption calculated?
L/100 km = (Fuel used ÷ Distance) × 100.
Formula
- L/100 km = fuel used / distance x 100.
- Cost per km = fuel used x fuel price / distance.
- Total fuel cost = fuel used x fuel price.
- A lower L/100 km value usually means better fuel efficiency.
Example
18.5 liters over 250 km equals 7.4 L/100 km.
Fuel-saving tips
- Keep tires properly inflated.
- Avoid rapid acceleration.
Comparisons
Consumption is usually higher.
Traffic and stop-start driving increase usage.
Consumption is often lower at steady speed.
Speed, wind, and load still matter.
Shows vehicle efficiency.
Useful for comparing vehicles or trips.
Shows budget impact.
Changes when fuel price changes.
Fuel consumption calculator guide
Fuel consumption calculation converts real fuel usage into a standard measure. Liters per 100 km is widely used because it describes how much fuel is needed to travel a fixed distance.
A practical way to measure consumption is to fill the tank, drive a known distance, then refill and record the fuel used. Dividing fuel used by distance and multiplying by 100 gives the average consumption.
When fuel price is included, the tool also calculates cost per kilometer and total fuel cost. This turns a technical consumption number into a planning number for budgets and trip decisions.
Actual consumption can vary because of traffic, speed, tire pressure, maintenance, air conditioning, terrain, and load. The result should be treated as an estimate rather than a guarantee.
Using the same method consistently helps compare different routes, seasons, vehicles, and driving habits.
FAQ
How is L/100 km calculated?
Fuel used is divided by distance and multiplied by 100.
Is a lower L/100 km better?
Yes. It means less fuel is used for the same distance.
What does cost per km mean?
It estimates how much fuel cost is spent for each kilometer.
Can I use this for LPG or diesel?
Yes, as long as fuel usage is entered in liters.
Why do city and highway values differ?
Stop-start traffic and changing speeds often increase city consumption.
Does fuel price affect consumption?
No. It affects cost results, not the consumption rate.
Is the result exact?
No. Real-world conditions can change actual consumption.
What distance gives a better estimate?
Longer, representative distances usually produce a more reliable average.
Related tools
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