Fuel & mileage guides
Plain-language answers to the questions every Indian driver asks — no jargon, worked examples in ₹ and km.
How to calculate your real mileage (km/l)
The full-tank method explained: why two full tanks are needed, why one fill-up can never tell you your mileage, how partial fill-ups are bridged, and the mistakes that silently corrupt the number.
Kitna deti hai? Finding your true average
Your dashboard's average is optimistic — often by 5–15%. How to measure the honest figure at the pump, and why the trend against your own average is an early-warning system for your vehicle's health.
CNG mileage: km per kg explained
Why CNG is sold by the kilogram, how to calculate km/kg, comparing CNG and petrol fairly using ₹/km, and how to track a bi-fuel car without mixing up the two fuels.
Fuel cost per km: what your vehicle really costs to run
Two ways to compute ₹/km, a realistic monthly fuel budget, and the true cost once service, insurance, PUC and tolls are counted — the number that should drive your next vehicle decision.
Put the maths on autopilot
Everything in these guides is what Bharometer does automatically — honest tank-to-tank mileage, ₹/km on every fill-up, CNG in kg, and your true running cost. Free on iPhone, made for India.
