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Utility

Fuel Cost Calculator

A fuel cost calculator for road trips and daily commutes. Enter distance, vehicle mileage (km/L or mpg), and fuel price — see total fuel needed and trip cost instantly.

Trip fuel cost

₹3,500

Fuel needed

33.33 L

Cost per km

₹7.00/km

Method

How this calculator works

Fuel cost divides total distance by vehicle mileage to find litres needed, then multiplies by price per litre.

Fuel Needed (L) = Distance (km) / Mileage (km/L)
Total Cost = Fuel Needed × Price per Litre
Cost per km = Total Cost / Distance
  1. Enter the trip distance in kilometres.
  2. Enter your vehicle's mileage (km per litre).
  3. Enter the current fuel price per litre.
  4. See total fuel needed, trip cost, and cost per km.

Examples

Worked examples

Real numbers, end-to-end results.

500 km · 15 km/L · ₹105/L

Fuel: 33.3L · Cost: ₹3,500

Typical intercity road trip in India.

1000 km · 20 km/L · ₹100/L

Fuel: 50L · Cost: ₹5,000

Highway trip in an efficient car.

Use cases

When to use it

  • Planning road trip budget.
  • Comparing fuel cost between routes.
  • Calculating daily commute cost.
  • Comparing petrol vs diesel vs EV running costs.

FAQ

Frequently asked questions

How is fuel cost calculated?
Fuel needed = Distance / Mileage. Cost = Fuel needed × Price per litre. Simple division and multiplication.
What mileage should I use?
Use your vehicle's real-world mileage, not the manufacturer's claimed figure. Highway driving is typically 10-20% better than city driving. Check your car's trip computer for actual figures.
Does it work for electric vehicles?
You can adapt it: enter km/kWh as "mileage" and electricity price per kWh as "fuel price". The math is identical.
How do I convert mpg to km/L?
Multiply mpg by 0.425. Example: 30 mpg = 12.75 km/L. Or use our unit converter for exact conversion.

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