How this calculation works
Estimate a trip’s fuel and toll bill, then split it equally between the people travelling. Distance divided by real-world mileage gives litres; multiplying litres by the entered pump price gives fuel cost. The return-trip switch doubles both the entered distance and tolls, so enter one-way amounts when using that switch.
Worked example
This example uses illustrative inputs. Your current result is shown above.
Enter 300 km, 15 km/L, ₹100/L, ₹500 tolls and 2 passengers, with return trip enabled. Distance becomes 600 km; fuel = 600 ÷ 15 = 40 L costing ₹4,000. Tolls become ₹1,000. Total = ₹4,000 + ₹1,000 = ₹5,000, or ₹2,500 per person.
Assumptions and limits
- The tool does not fetch a route, pump price or toll schedule. Supply the actual expected distance, mileage, price and tolls.
- Return-trip mode assumes equal outward and return distances and tolls. If they differ, enter the combined totals and leave return-trip mode off.
- Parking, wear, maintenance, insurance and accommodation are excluded. All entered passengers share the total equally; include the driver if they are paying a share.
Questions people ask
I already entered the round-trip distance. Should I select return trip?
No. That would double it again. Enter combined distance and combined tolls with the switch off, or one-way amounts with it on.
Why does lower mileage increase the cost?
Mileage is kilometres travelled per litre. At 10 km/L a 100 km trip uses 10 litres; at 20 km/L it uses only 5 litres.
Can I use this to compare total ownership costs?
Not by itself: this tool covers trip fuel and tolls. The EV versus petrol ownership calculator also includes purchase costs, upkeep and resale assumptions.