Fuel Cost Calculator Chennai

Fuel Cost Calculator for Chennai

Petrol cost ₹107.77 a litre in Chennai and diesel ₹99.55 on 4 November 2026, according to the Petroleum Planning & Analysis Cell (PPAC) metro price table, shown daily on FastBuySale's petrol and diesel rates page. Chennai's petrol price was ₹5.65 a litre above Delhi's but ₹3.44 below Mumbai's on that date. The gap between petrol and diesel is the smallest of the four metros, at ₹8.22 a litre.

Facts that change the answer

• Chennai petrol: ₹107.77/litre (PPAC, 4 Nov 2026)
• Chennai diesel: ₹99.55/litre
• Diesel is ₹8.22 a litre cheaper than petrol in Chennai
• Compared with Delhi petrol (₹102.12): +₹5.65 a litre
• Units preset here: km and km per litre

Worked example for Chennai

Chennai to Puducherry along the East Coast Road is about 300 km there and back. A petrol car that does 15 km per litre uses 20.0 litres, which costs ₹2,155 at ₹107.77. Split 3 ways it is ₹718 each. The same distance in a diesel car with the same mileage would cost ₹1,991. Tolls are extra.

Because diesel is only ₹8.22 a litre cheaper than petrol in Chennai, the running-cost advantage of a diesel car is smaller here than in Kolkata or Mumbai. Compare the per-km cost for each fuel before you decide.

Common weekend drives from Chennai include Mahabalipuram (about 120 km round trip), Puducherry and Vellore. The East Coast Road has toll plazas, which are not included in the fuel figure.

For daily commuting on OMR or GST Road, enter your real round-trip distance and multiply the per-km cost by your working days to compare with the Chennai Metro or a bus pass.

Two-wheelers dominate Chennai traffic. A 110 cc scooter doing 45 km a litre costs about ₹2.39 per km in fuel at ₹107.77, which you can check by entering 45 as the economy.

Sources: FastBuySale: petrol and diesel price today (PPAC data) · PPAC: retail selling price of petrol and diesel in metro cities. Checked 5 November 2026. For how the maths works, see the Fuel Cost Calculator guide.