About us
Two numbers, always shown together
Every car sold in India carries an ARAI mileage figure that almost nobody achieves. MyCarMileage exists to publish that certified number honestly, and next to it, what owners actually get — because the gap between the two is the whole story.
Models tracked
62
Powertrain variants
155
Brands
12
Cities priced
16
petrol, diesel, CNG, power
How ARAI mileage is measured
Fuel efficiency certification in India happens on a chassis dynamometer under the Modified Indian Driving Cycle (MIDC), part of the Bharat Stage emission test procedure. The car never touches a road. Ambient temperature is held between 20°C and 30°C, the air conditioning is off, there are no passengers, no gradient, no wind and no traffic. The efficiency figure is derived from the carbon balance of the exhaust rather than from a fuel flow meter.
This is not a flaw in the test — a repeatable comparison between two cars requires controlled conditions. It does mean the number describes a laboratory, not a commute.
How we collect real-world mileage
Our real-world figures come from three sources, in order of weight:
- Owner-submitted fill-up reports. Readers report the mileage they measure tank to tank through the submission form, along with fuel type, driving style and city.
- Published long-term road tests. Where a model has too few owner reports to be statistically useful, we seed the figure from documented long-term test data and mark it for replacement as reports accumulate.
- Manufacturer specification. Used only for physical specifications — tank capacity, kerb weight, displacement, power — never for the efficiency figure.
Cleaning the data
Submissions are filtered against a plausible band per fuel type before they publish. A petrol hatchback reported at 45 km/l or 3 km/l is held for manual review rather than published. We then take the median of the surviving reports for each powertrain, so that neither an unusually careful driver nor a badly measured tank can move the published figure much.
What we do not do
- We do not average across powertrains. A CNG figure never gets blended into a petrol one.
- We do not round ARAI figures to look neater.
- We do not accept payment to change a figure, a ranking or an article.
- We do not publish an owner’s email, phone number or location beyond the city they type in.
How running costs are calculated
Cost per kilometre is the retail price of one unit of fuel divided by the real-world efficiency — price per litre ÷ km/l for petrol, diesel and hybrids, price per kg ÷ km/kg for CNG, and price per kWh ÷ km/kWh for electric cars. Fuel prices come from a periodic snapshot of city-wise retail selling prices, and every calculator lets you override the price with what your pump actually charged.
For CNG range we assume roughly 0.22 kg of usable gas per litre of cylinder water capacity, which is the conventional approximation for the pressures used at Indian filling stations.
Corrections and independence
Data errors happen, particularly around facelifts and variant reshuffles. If you spot one, tell us through the contact form — pick “Correction to car data” and include a source if you have one. We publish corrections without fuss.
The site is funded entirely by display advertising in fixed slots. Advertisers see the same pages you do and have no visibility into, or influence over, the data.
Methodology questions
Where do your ARAI mileage figures come from?
From manufacturer-published certification data for the Indian market, quoted at the precision the manufacturer states. We do not round, average or otherwise adjust these numbers — if a figure looks odd, it is because the certification says so.
How do you calculate real-world mileage?
We aggregate owner-submitted tank-to-tank fill-up reports per model and per powertrain, discard figures outside a plausible range for that fuel type, and publish the median. Where a model has too few reports to be meaningful, we seed the figure from published long-term road-test data and replace it as owner reports accumulate.
Why the median rather than the average?
Averages are easily distorted by a handful of extreme entries — one hypermiler or one badly measured tank can move a mean noticeably. The median is stable against that.
How often is the data updated?
Owner reports feed into the averages continuously. Fuel prices are refreshed from a periodic snapshot of city-wise retail rates. Model specifications are reviewed when a manufacturer announces a facelift, a new variant or a powertrain change.
Do manufacturers pay to appear on this site?
No. No manufacturer, dealer or advertiser can influence a mileage figure, a ranking or an article. The site is funded by display advertising, which is placed in fixed slots and never inside the data.
I found an error. How do I report it?
Use the contact form and select "Correction to car data". Include the model, the variant and the source of the correct figure if you have one. Verified corrections usually ship within a couple of days.