Why real-world mileage differs from claimed
Claimed ARAI figures are measured under controlled lab conditions. Traffic, AC usage, payload and driving style reduce real-world mileage by 10–30% versus certified numbers.
Delhi
Calculate kmpl, trip fuel cost & EV efficiency — petrol, diesel, CNG & electric vehicles with live Indian city pricing.
Calculate mileage, trip fuel cost and EV charging expenses
7 L / 100 km
Distance
400 km
Fuel Used
28 L
Total Cost
₹2,830.52
Cost / km
₹7.08
Cost / 100 km
₹707.63
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The formula behind fuel efficiency and running cost estimation
Core Formula
Mileage (kmpl) =
Distance ÷ Fuel Consumed
Example
Car travels 420 km using 28 L of petrol
→ 420 ÷ 28 = 15 kmpl
Use the trip meter or odometer reading to note the exact kilometres driven after refuelling.
Fill the tank again and note how many litres were required. That amount was used for the trip.
If your car travelled 420 km and consumed 28 litres, mileage is 420 ÷ 28 = 15 kmpl.
Multiply litres consumed by city fuel price to estimate total fuel cost and cost per kilometre.
Best fuel-efficient vehicles trending on CarzOnWheel

Ex-Showroom
₹6.30 LOnwards
Mileage
23.6,19.3,26.2 km/kg

Ex-Showroom
₹8.49 LOnwards
Mileage
17.29 kmpl

Ex-Showroom
₹9.70 LOnwards
Mileage
14.0 kmpl

Ex-Showroom
₹33.65 LOnwards
Mileage
14.2 kmpl,10.3 kmpl
-1776928918245.webp&w=384&q=75)
Ex-Showroom
₹11.00 LOnwards
Mileage
18.85 kmpl

Ex-Showroom
₹21.90 LOnwards
Mileage
656 km
Compare fuel efficiency across popular cars in India

Mileage
14.1 kmpl,16.8 kmpl
₹13.29 LOnwards

Mileage
19.68 kmpl
₹7.55 LOnwards

Mileage
20.6 kmpl,18.2 kmpl
₹7.28 LOnwards

Mileage
17.9 kmpl,18.5 kmpl
₹7.90 LOnwards

Mileage
20.01 kmpl,28.51 km/kg
₹6.85 LOnwards

Mileage
Diesel - 24.08 kmpl,Petrol - 17.44 kmpl
₹7.37 LOnwards

Mileage
18 kmpl to 20 kmpl,26.9 km/kg
₹5.60 LOnwards
Practical guidance on fuel efficiency, running cost and mileage planning
Vehicle mileage shows how far a car or SUV travels on one unit of fuel. In India, petrol and diesel mileage is expressed as kmpl (kilometres per litre), CNG as km/kg and EV efficiency as km/kWh. A higher number means lower running cost for the same distance travelled.
Claimed ARAI figures are measured under controlled lab conditions. Traffic, AC usage, payload and driving style reduce real-world mileage by 10–30% versus certified numbers.
Maintain steady speed, avoid rapid acceleration, keep tyres inflated correctly and service the air filter regularly. These simple habits can improve your mileage by 10–20%.
Petrol and diesel prices vary significantly by city due to local taxes. Use the city selector in the calculator for accurate trip cost estimates closest to your location.
Common questions about mileage calculation, fuel efficiency and EV range