Mileage Calculator
Calculate your real km/l, l/100 km and fuel cost per km by the full-tank method
| Distance | Fuel (litres) | Cost |
|---|---|---|
| 100 km | 6.7 | ₹667 |
| 500 km | 33.3 | ₹3,333 |
| 1,000 km | 66.7 | ₹6,667 |
| 5,000 km | 333.3 | ₹33,333 |
| 10,000 km | 666.7 | ₹66,667 |
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Results are for general guidance. Please check anything important before relying on it. Terms of use
How to Use
- Fill the tank full (to the first auto cut-off) and note the odometer reading, or reset the trip meter.
- Drive normally until the tank is well below half, then fill it full again at the same pump if you can and note the litres filled.
- Choose Odometer readings or Trip meter, enter the distance and litres, and the fuel price you paid.
- Your mileage in km/l, fuel use in l/100 km and cost per km update as you type.
- If you like, enter the company-claimed mileage to compare, or a trip distance to estimate the fuel and cost for it.
How to calculate your vehicle's real mileage
The mileage printed in a car or bike brochure is measured in a laboratory test cycle. On Indian roads, with traffic, the AC on, passengers and your own driving style, you usually get less. The most reliable way to measure your vehicle's mileage is the full-tank method, and this mileage calculator does the arithmetic for you.
The full-tank method
- Fill the tank to the brim (stop at the first automatic cut-off) and note the odometer reading, or reset the trip meter to zero.
- Drive as you normally do until at least half the tank is used.
- Fill the tank full again, ideally at the same pump and the same nozzle cut-off, and note the litres it takes and the new odometer reading.
The litres you put in the second time are exactly the fuel you burned over that distance.
Fuel use (l/100 km) = 100 ÷ mileage
Cost per km = fuel price per litre ÷ mileage
Worked example
Your odometer read 12,000 km at the first full tank and 12,450 km at the next. You filled 30 litres. Mileage = 450 ÷ 30 = 15 km/l, which is 100 ÷ 15 = 6.67 litres per 100 km. With petrol at ₹100 a litre, every km costs ₹100 ÷ 15 = ₹6.67, so 1,000 km costs about ₹6,667. If the brochure claimed 20 km/l, you're getting 75% of the claimed figure, which is common in city driving.
km/l and l/100 km
| km/l | l/100 km | Cost per km at ₹100/litre |
|---|---|---|
| 10 | 10.0 | ₹10.00 |
| 15 | 6.67 | ₹6.67 |
| 20 | 5.00 | ₹5.00 |
| 40 | 2.50 | ₹2.50 |
| 60 | 1.67 | ₹1.67 |
Indian brochures quote km/l. Many international reviews use l/100 km, where a lower number is better. The ₹100 price is just an example, so enter what you actually paid.
Getting a reliable figure
- Repeat over two or three full tanks and take the average. A single reading can be off because the "full" level varies slightly.
- Measure city and highway driving separately if you do both; highway mileage is usually higher.
- Keep the tyre pressure right, service the vehicle on time, accelerate gently and don't idle for long. Each of these helps mileage.
- A sudden drop in mileage can point to low tyre pressure, a clogged air filter or a dragging brake. Get it checked.
Planning a trip
Enter a trip distance and the calculator estimates the fuel and cost at your measured mileage. For a fuller trip plan with a split between passengers, use the fuel cost calculator. Thinking of switching to electric? Compare running costs with the EV charging cost calculator.