15 km/L
Total fuel cost for trip
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Fuel Costs and Your Budget
Also searched as: gas cost calculator | road trip fuel cost calculator | trip cost calculator gas | mpg cost calculator Optimized for US users with American units and terminology.
Fuel is typically the 2nd or 3rd largest household expense after rent and groceries. At ₹103/litre petrol and 15 km/litre efficiency, driving 1,500 km per month costs ₹10,300 in fuel alone — ₹1,23,600 per year. A 5 km/litre improvement (20 km/litre) saves ₹38,625 annually on the same distance, which easily justifies choosing a more efficient vehicle or maintaining the one you own.
Use the Gas Cost Calculator above — enter your values and get instant results. This free online tool calculates gas cost calculator road trip without any download or signup required. Results update in real time as you type.
Use the Gas Cost Calculator above — enter your values and get instant results. This free online tool calculates how much will gas cost for my trip without any download or signup required. Results update in real time as you type.
India uses km/litre (kilometres per litre). ARAI (Automotive Research Association of India) certifies official fuel efficiency figures under standardised test conditions. Real-world efficiency is typically 15–25% lower than ARAI figures due to city traffic, AC use, load, road conditions, and driving style. WLTP (Worldwide Harmonised Light Vehicle Test Procedure) is the newer, more realistic standard being phased in. When comparing cars, use real-world figures from owner communities like Team-BHP or CarDekho user reviews rather than ARAI claims.
CNG costs approximately ₹90/kg and gives ~25 km/kg in CNG mode, making the per-km cost ₹3.60 vs ₹6.87 for petrol at ₹103/litre with 15 km/litre. The fuel saving is roughly 48%. A CNG kit costs ₹60,000–₹80,000. The break-even is around 25,000–35,000 km depending on your current fuel type, mileage, and CNG price in your city. For drivers covering 1,500+ km/month, CNG typically pays back within 18–24 months. Downsides: reduced boot space, slightly lower power, longer refuelling time at CNG stations.
An EV costs ₹1.5–2/km on electricity vs ₹6.5–8/km for petrol (home charging at ₹8/kWh, 6 km/kWh efficiency). Saving ₹4.5–6/km. At 1,500 km/month, monthly fuel savings = ₹6,750–9,000, or ₹81,000–1,08,000/year. If an EV costs ₹3 lakh more than an equivalent petrol car, break-even is 3–3.7 years on fuel savings alone — not counting lower maintenance (no oil changes, fewer brake services due to regenerative braking). The break-even shortens significantly at higher mileage or with home charging vs commercial charging.
Ranked by impact: Aggressive acceleration and braking (reduces efficiency 15–40%). Air conditioning (reduces efficiency 5–25% depending on load). City stop-and-go traffic (vs highway: 30–40% worse). Incorrect tyre pressure (under-inflated by 5 psi reduces efficiency ~2%). Roof rack/cargo on roof (10–25% at highway speeds). Speed above 100 km/h (every 10 km/h above 100 increases fuel consumption ~10%). Engine idling (0 km/litre). Vehicle load (every 100 kg reduces efficiency ~1.5%). Regular servicing (clean air filter, fresh oil, correct spark plugs) maintains rated efficiency.
Petrol prices vary by city due to state taxes. Major cities as of mid-2025: Mumbai ₹106.31/L, Delhi ₹94.72/L, Bengaluru ₹102.86/L, Chennai ₹101.43/L, Hyderabad ₹107.41/L, Kolkata ₹104.95/L. Diesel is typically ₹10–12 cheaper per litre. Prices change daily based on global crude oil prices, INR/USD exchange rate, and central/state excise and VAT. Check your city's current price on the Indian Oil or HP Petrol official website before entering it into this calculator.