Watt2Buy
·Smarter vehicle decisions for India
Watt2Buy is a free, India-first calculator built by Walawalkar Enterprise LLP. It answers a question every Indian buyer faces — which vehicle actually costs less to own? — by comparing electric, petrol, diesel, CNG and hybrid options on personalised total cost of ownership.
Instead of the sticker price alone, it accounts for your city's electricity tariffs and fuel prices, your driving pattern, financing terms and the EV policies of your state — then shows the real five-to-ten-year cost, side by side.
A clear, ranked comparison in seconds
Pick your city, choose the vehicles you're weighing up, and set your driving profile. Watt2Buy ranks them by total cost of ownership and breaks down exactly where the money goes — purchase, fuel or energy, maintenance, insurance, road tax and government incentives — with a clear recommendation you can audit.
- Cash vs financed cost basis, toggled live
- State EV road-tax and subsidy rules applied per city
- Break-even point between EV and ICE made explicit
Built for honest, personalised answers
Every powertrain, compared
Electric, petrol, diesel, CNG and strong-hybrid vehicles side by side on true total cost of ownership — not just the sticker price.
Personalised to your city
City-specific electricity tariffs, fuel prices and state EV incentives across 28+ cities, plus a national-average fallback.
Your numbers, your drive
Annual kilometres, city-vs-highway split, home-charging share, ownership horizon and financing all feed the calculation.
Transparent methodology
Every figure is sourced and date-stamped, with the formula on view. No black-box recommendations.
India's EV market, in charts
Watt2Buy also tracks eleven years of India's electric-vehicle transition — registrations, penetration, charging infrastructure and models on sale — normalised from VAHAN, SIAM, FADA, BEE and other public sources, so buyers can see where the market really is before they commit.
Find out what your next vehicle really costs
Free to use, no sign-up required. Compare your shortlist on real, personalised total cost of ownership.
Explore Watt2Buy