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

Distance from Sarnia, ON to Comox, BC

Distance

4,073 km

Time

1 day 23 hours

Gas Cost

$308 - $738

There are 3,302.15 km (2,051.86 miles) from Sarnia to Comox in northwest direction and 4,073.25 km (2,531 miles) by car and ferry, following the I-90 route.

Sarnia and Comox are 1 day 23 hours far apart, if you drive non-stop for 1 day 21 hours and take a ferry for 2 hours 2 mins .

This is the fastest route from Sarnia, ON to Comox, BC.

Please note the time difference between Sarnia, ON and Comox, BC is 3 hours. The current time in Sarnia is 3:09 am and the current time in Comox is 12:09 am.

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Lowest Price Rental Cars in Sarnia, ON

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Sarnia »

Gas Consumption and Emissions

A car with a fuel efficiency of 8.9 l/100 km will need 362.51 liters of gas to cover the route between Sarnia, ON and Comox, BC.

The estimated cost of gas to go from Sarnia to Comox is $547.38.

During the route, an average car will release 8,671.14 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 4, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Sarnia, ON and Comox, BC

If you want to meet halfway between Sarnia, ON and Comox, BC or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 44.266148 and -104.980080, or 44º 15' 58.1328" N, 104º 58' 48.288" W. This location is 1,265.46 miles away from Sarnia, ON and Comox, BC and it would take approximately 23 hours 42 mins to reach the halfway point from both locations.

Distance conversions

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

Distance type	Miles	Kilometers	Nautical miles
Straight line distance	2,051.86 mi	3,302.15 km	1,783.02 nautical mi
Driving distance	2,531 mi	4,073.10 km	2,199.30 nautical mi

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