Distance between cities › Canada › Ontario › Killarney, ON › Distance from Killarney to Sarnia Book Hotels

Distance from Killarney, ON to Sarnia, ON

Distance

778 km

Time

10 hours 21 mins

Gas Cost

$59 - $141

There are 340.77 km (211.75 miles) from Killarney to Sarnia in southwest direction and 777.31 km (483 miles) by car, following the 400 route.

Killarney and Sarnia are 10 hours 21 mins far apart, if you drive non-stop .

This is the fastest route from Killarney, ON to Sarnia, ON. The halfway point is Dalston, ON.

Killarney, ON and Sarnia, ON are in the same time zone (EDT). Current time in both locations is 4:21 am.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from Killarney, ON to Sarnia, ON:

Lowest Price Rental Cars in Killarney, ON

Planning on renting a car to go from Killarney, ON to Sarnia, ON? Here there are some offers to rent a car in Killarney, ON

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Killarney »

Gas Consumption and Emissions

A car with a fuel efficiency of 8.9 l/100 km will need 69.25 liters of gas to cover the route between Killarney, ON and Sarnia, ON.

The estimated cost of gas to go from Killarney to Sarnia is $104.56.

During the route, an average car will release 1,656.42 kilograms of CO₂ to the atmosphere. The carbon footprint would be 2.13 kilograms of CO₂ per kilometer.

Average Canada gas price used for calculation is $1.51 per liter of regular gas. Price last updated on March 5, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Killarney, ON and Sarnia, ON

If you want to meet halfway between Killarney, ON and Sarnia, ON or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 44.564426 and -79.726028, or 44º 33' 51.9336" N, 79º 43' 33.7008" W. This location is 241.74 miles away from Killarney, ON and Sarnia, ON and it would take approximately 5 hours 10 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Dalston, ON, situated 258 miles from Killarney, ON and 227 miles from Sarnia, ON. It would take 5 hours 10 mins to go from Killarney to Dalston and 3 hours 40 mins to go from Sarnia to Dalston.

Major City Closest to Halfway Point

The major city closest to the halfway point between Killarney, ON and Sarnia, ON is Barrie, ON, situated 265 miles from Killarney, ON and 219 miles from Sarnia, ON. It would take 5 hours 18 mins to go from Killarney to and 3 hours 34 mins to go from Sarnia to Barrie.

Distance conversions

Checkout the distance in miles, kilometers and nautical miles between Killarney, ON and Sarnia, ON in this table:

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	211.75 mi	340.77 km	184 nautical mi
Driving distance	483 mi	778.07 km	420.13 nautical mi

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