257 km · 2 toll plazas · about 5 h 15 min on the road. Change the vehicle, fuel or mileage below and every number updates.
Mysore to Yercaud is a comfortable one-day drive of 257 km, mostly on SH79.
You cross 2 toll plazas across Karnataka, Tamil Nadu. For a car the published fees add up to ₹140 one way, about ₹0.54 per km, cheaper than most highway corridors.
Yercaud is a hill destination: the last stretch climbs ghat roads, where mileage drops by roughly 15–25% and speeds fall sharply. Our fuel figures use flat-road mileage, so add a buffer.
States on the way: KarnatakaTamil Nadu
Fees for a single journey with FASTag. Return fees apply when you come back through the same plaza within 24 hours; a monthly pass covers 50 single journeys in a month.
Totals for all 2 plazas. “No FASTag” is the 1.25x UPI rate.
| Vehicle class | One way (FASTag) | Return in 24 h | No FASTag (UPI) |
|---|---|---|---|
| Car / Jeep / Van | ₹140 | ₹215 | ₹175 |
| LCV / Mini bus | ₹245 | ₹365 | ₹307 |
| Bus / Truck (2 axle) | ₹495 | ₹745 | ₹619 |
| 3-axle commercial | ₹715 | ₹1,075 | ₹894 |
| 4–6 axle (MAV) | ₹790 | ₹1,185 | ₹987 |
| 7+ axle (oversized) | ₹845 | ₹1,265 | ₹1,056 |
One way, 257 km, at Karnataka prices (petrol ₹111.30/L, diesel ₹99.21/L). Typical highway mileage; change it in the calculator for your car.
| Car type | Petrol | Diesel | CNG | Electric |
|---|---|---|---|---|
| Hatchback | ₹1,591 | ₹1,160 | ₹970 | ₹643 |
| Sedan | ₹1,909 | ₹1,343 | ₹1,146 | ₹735 |
| SUV / MUV | ₹2,603 | ₹1,823 | ₹1,483 | ₹936 |
Petrol is cheapest in Tamil Nadu (₹108.78/L) and dearest in Karnataka (₹111.30/L). Filling the ~17 litres you need in Tamil Nadu saves about ₹43 versus buying it all in Karnataka.
For the same sedan, fuel for one way costs ₹1,909 on petrol, ₹1,343 on diesel and about ₹735 on electric (public fast charging at ₹20/kWh; home charging is far cheaper).
The pass costs ₹3,075 for 200 crossings (₹15.38 per crossing) on NHAI plazas. This trip uses 2 crossings one way — worth about ₹31 of pass value against ₹140 in regular fees. If you drive highways often, the pass pays off on this route.
Return within 24 hours and the car toll for the round trip is ₹215 instead of ₹280 — a 23% discount that FASTag applies automatically.
About ₹140 one way with FASTag across 2 plazas. A return within 24 hours costs ₹215. Without FASTag you pay 1.25x by UPI: ₹175.
2 on the fastest route: Yeddore, Omallur.
About 17 litres for a car doing 15 km/l (₹1,909 at Mysore prices). A hatchback at 18 km/l needs ~14 L; an SUV at 11 km/l needs ~23 L.
Around ₹2,049 one way for a petrol sedan (fuel ₹1,909 + toll ₹140), or ₹4,033 for a same-day return. Split between four people that is ₹512 each, one way.
Plan on about 5 h 15 min including short breaks. Free-flowing traffic can do it in 3 h 52 min, but towns, trucks and plaza queues usually add time.
One way with FASTag: bus/2-axle truck ₹495, 3-axle ₹715, 4–6 axle ₹790, 7+ axle ₹845.
Yes, plazas charge the same fee in both directions, so the Yercaud to Mysore toll is the same ~₹140 for a car. Fuel cost differs only if you fill up at Yercaud's state price.
Fees are revised every 1 April and some plazas change mid-year, so treat results as a close estimate. Spotted a wrong fee or a missing plaza? Tell us — we fix reported errors within 72 hours and log them on our corrections page.
Built and maintained by Nikhil Shrivastava. Full method: how the calculator works.
Last updated: 24 October 2026