Free Mileage Calculator
Work out the mileage of any vehicle, bike, car, SUV or truck, in km/l, mpg and L/100km. Or flip to trip cost and see the fuel and money a journey will take. Free, and nothing to sign up for.
- Distance driven
- 100 km
- Fuel used
- 5 L
- Typical for a car
- 12 to 24 km/l
Estimates for planning and quick checks. Real mileage varies with load, traffic, terrain and how the vehicle is driven and maintained.
Your mileage in four steps.
One tool, two jobs. Work out how efficient your vehicle is from a trip you have done, or estimate the fuel and cost of a journey ahead. It handles any liquid-fuel vehicle, in whichever units you think in.
Pick what you want
Choose 'Mileage' to work out fuel efficiency from a trip you've done, or 'Trip cost' to estimate the fuel and money for a journey ahead.
Choose your vehicle
Tap bike, car, SUV, truck or other. It sets a realistic starting mileage and the typical range to compare your number against.
Enter your numbers
For mileage, the distance driven and the fuel used. For trip cost, the distance, your mileage and the fuel price. Switch km or miles, litres or gallons.
Read the result
Mileage shows km/l, mpg and L/100km together. Trip cost shows the fuel needed, the total cost and the cost per kilometre.
How the mileage maths works.
Fuel efficiency
How far you go on your fuel. Higher km/l or mpg is better.
Mileage = Distance ÷ Fuel used
Example: 100 km on 5 litres is 100 ÷ 5 = 20 km/l.
Trip cost
The fuel and money a journey takes, from your mileage.
Fuel needed = Distance ÷ Mileage
Cost = Fuel needed × Price
Example: 300 km at 15 km/l is 20 litres, and at ₹100 a litre that is ₹2,000.
Converting between units
km/l to mpg (US)
km/l × 2.35
km/l to mpg (UK)
km/l × 2.82
km/l to L/100km
100 ÷ km/l
A US gallon is about 3.79 litres and a UK gallon about 4.55 litres, so the same vehicle reads higher in UK mpg than US mpg. The calculator shows all the units at once, so you never have to convert by hand.
km/l, mpg and L/100km.
The same efficiency gets written three ways around the world. Here is what each one means and which way is better.
| Unit | Full name | Used in | What it means |
|---|---|---|---|
| km/l | Kilometres per litreHigher is better | India, most of Asia | How far the vehicle goes on one litre of fuel. The everyday way mileage is quoted for bikes and cars in India. |
| mpg | Miles per gallonHigher is better | US and UK | Distance covered on one gallon. A US gallon is smaller than a UK gallon, so the same car shows a lower US mpg than UK mpg. |
| L/100km | Litres per 100 kmLower is better | Europe, Australia | The fuel burned to cover 100 km. It runs the other way from km/l and mpg, so a smaller number means a more efficient vehicle. |
Typical mileage for a bike, car or truck.
A rough guide to real-world mileage for well-kept vehicles in mixed driving. Your own number depends on the engine, the load, the roads and your right foot, so use the calculator above for your vehicle.
| Vehicle | Typical mileage | Usual fuel | Notes |
|---|---|---|---|
| Bike / Scooter | 35 to 60 km/l | Petrol | Commuter motorcycles and scooters. The lightest vehicles on the road, so they return the highest mileage. |
| Car | 12 to 24 km/l | Petrol / Diesel | Hatchbacks and sedans. Diesel and hybrid versions usually sit at the top of the band, older petrol cars near the bottom. |
| SUV / MUV | 9 to 17 km/l | Petrol / Diesel | Bigger, heavier and less aerodynamic than a car, so the same engine works harder and mileage drops. |
| Truck / Bus | 3 to 6 km/l | Diesel | Heavy commercial vehicles. Mileage depends heavily on how loaded they are and whether the road is flat. |
| Other | You set it | Any | Any other vehicle. Enter your own numbers and the calculator works out the rest. |
Ranges are indicative. Manufacturer or test-cycle figures are usually higher than what you see day to day, so measuring your own mileage is the honest way to know.
Simple ways to improve your mileage.
None of these cost much, and together they can claw back a real slice of your fuel bill. Measure your mileage, change a habit, then measure again.
Keep tyres at the right pressure
Under-inflated tyres drag and can cost a few percent in mileage. Check them cold, every couple of weeks, against the figure on the door frame.
Service it on time
A clogged air filter, tired spark plugs or old engine oil all make the engine work harder. Regular servicing pays for itself at the pump.
Drive smoothly
Hard acceleration and late braking burn fuel. Ease on and off the throttle, read the road ahead, and hold a steady speed where you can.
Lose the dead weight
Empty the boot and take off unused roof racks and carriers. Extra weight and drag both eat into mileage, roof loads most of all at speed.
Cut the idling
A running engine going nowhere gives zero mileage. For a long wait, switch it off rather than idle, and warm the engine by driving gently, not by standing still.
Use the right gear
Revving too hard in a low gear wastes fuel. Shift up sooner and let the engine settle into its comfortable range for the speed you are doing.
Track fuel and mileage across every vehicle.
This tool is handy for one vehicle or one trip. But when you run a fleet, you want fuel logs, mileage trends and cost per kilometre tracked for each vehicle, with a flag the moment one starts drinking more than it should. That is the kind of logistics and fleet software we build at Techliphant, shaped around how your operation actually runs.
Need more free tools? See all calculators.
Common mileage questions.
It's a free online tool that works out how fuel-efficient a vehicle is and how much a trip will cost in fuel. For mileage, you enter the distance driven and the fuel used, and it gives you km/l, mpg and L/100km. For a trip, you enter the distance, the mileage and the fuel price, and it gives you the fuel needed and the total cost.
Divide the distance travelled by the fuel used: Mileage = Distance ÷ Fuel. If you drove 100 km on 5 litres, that is 100 ÷ 5 = 20 km/l. The surest way to measure it is the tank-full method: fill the tank, note the odometer, drive normally, fill up again, and divide the kilometres covered by the litres it took to refill.
Yes. The maths is the same for any liquid-fuel vehicle, so a scooter, car, SUV, truck or bus all work. Picking the vehicle type just sets a realistic starting mileage and the typical range to compare against. A bike might return 35 to 60 km/l, a car 12 to 24, and a loaded truck only 3 to 6.
It depends on the vehicle. As a rough guide, commuter bikes and scooters do 35 to 60 km/l, most cars 12 to 24 km/l, larger SUVs 9 to 17 km/l, and heavy trucks or buses 3 to 6 km/l. Diesel and hybrid versions usually sit at the top of their band. Enter your own figure above to see where you land.
First find the fuel needed by dividing the distance by your mileage, then multiply by the fuel price. For a 300 km trip at 15 km/l, that is 300 ÷ 15 = 20 litres, and at ₹100 a litre that is ₹2,000. Switch the calculator to Trip cost and it does this for you, including cost per kilometre and a split between passengers.
They all describe fuel economy but in different ways. km/l is kilometres per litre and mpg is miles per gallon, and for both a higher number is better. L/100km is litres to cover 100 km, so a lower number is better. The calculator shows all of them at once so you can read your mileage in whichever unit you think in.
Because a US gallon and a UK gallon are not the same size. A US gallon is about 3.79 litres and an Imperial (UK) gallon is about 4.55 litres. Since the UK gallon is bigger, the same vehicle covers more miles on it, so its UK mpg figure is higher than its US mpg for the identical real efficiency. That is why the tool shows both.
Multiply km/l by about 2.35 to get US mpg, or by about 2.82 to get UK mpg. To go from L/100km, divide 235.2 by the L/100km figure for US mpg. For km/l to L/100km, divide 100 by the km/l. The calculator handles all of these conversions in the background.
Company and test-cycle figures are measured in controlled conditions that few of us drive in. Real traffic, air conditioning, short trips, a heavy right foot, load, hills and poor maintenance all pull the number down. It is normal for real-world mileage to land 10 to 30 percent below the headline figure, which is why measuring your own is worth it.
The trip logic is the same, but the units differ. CNG mileage is measured in km per kg and electric range in km per kWh rather than km per litre, so enter your fuel as those quantities and read the efficiency as km per unit. The fuel-cost side still works: fuel or energy needed times the price per kg or per unit gives the trip cost.
Keep tyres correctly inflated, service the vehicle on schedule, drive smoothly at steady speeds, and drop unneeded weight and roof carriers. Avoid long idling and use the right gear. Small habits add up, and the easiest win is usually just checking tyre pressure and not accelerating harder than you need to.
Yes on both. It's free, there's no sign-up, and it runs entirely in your browser. Nothing you type is sent anywhere or saved, so your numbers stay on your own device.
This tool is built for one vehicle or one trip at a time. If you run a fleet, you want fuel logs, mileage trends and cost per kilometre tracked for every vehicle, with a flag when one starts drinking more than it should. That's the kind of logistics and fleet software we build at Techliphant if you need it.
Disclaimer: This mileage calculator is provided free for general estimation and educational use. Fuel efficiency in the real world depends on load, traffic, terrain, weather, tyre pressure, driving style and maintenance, so results are estimates, not guarantees. Verify important figures against your own measurements before relying on them for budgeting or business decisions.
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