The Chennai to Coimbatore drive is about 510 km via NH44 + NH544 (via Salem) and takes around 8.0 hours by car. In a petrol car doing 18 km/l, fuel for the one-way trip costs about Rs 3,053 at Chennai pump prices (Rs 107.76/litre, August 2026). Add roughly Rs 815 in tolls one-way, taking the road-trip budget to about Rs 3,868 each way.
Chennai to Coimbatore fuel cost by vehicle
| Vehicle | One-way fuel | Round-trip fuel |
|---|---|---|
| Petrol car (18 km/l) | Rs 3,053 | Rs 6,106 |
| Diesel car (22 km/l) | Rs 2,308 | Rs 4,616 |
| CNG car (28 km/kg) | Rs 1,767 | Rs 3,534 |
| Bike (45 km/l) | Rs 1,221 | Rs 2,443 |
Fuel prices used: Chennai petrol Rs 107.76/l, diesel Rs 99.55/l, CNG Rs 97.00/kg (as of August 2026). One-way car toll: about Rs 815 (FASTag; NHAI revises rates every April).
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Prefilled for Chennai to Coimbatore (one-way distance and current petrol price). Adjust any value to match your vehicle.
Frequently Asked Questions
How much does petrol cost from Chennai to Coimbatore?
About Rs 3,053 one-way in a petrol car doing 18 km/l over the 510 km route, at Chennai prices of Rs 107.76 per litre.
What is the round-trip fuel cost for Chennai to Coimbatore?
Roughly Rs 6,106 in a petrol car, Rs 4,616 in a diesel car, or Rs 3,534 in a CNG car, plus about Rs 1,630 in tolls both ways.
How much is the toll from Chennai to Coimbatore?
About Rs 815 one-way for a car via NH44 + NH544 (via Salem) (2025-26 FASTag rates; NHAI revises every April).
What is the cheapest way to drive from Chennai to Coimbatore?
Among cars, CNG works out cheapest at about Rs 1,767 one-way; a bike costs about Rs 1,221 in petrol.