Driving route · Canada

Route from Mercier to Mattawa

Interactive map, distance, and indicative drive time for the route from Mercier to Mattawa — with the live planner for up-to-date turn-by-turn directions.

This page provides the map and indicative distance data for the route between Mercier (Quebec) and Mattawa (Ontario). Use the live planner below to get up-to-date driving directions by car, on foot, or by bicycle.

Distance from Mercier to Mattawa

The straight-line distance between Mercier and Mattawa is 399.2 km. The estimated road distance by car is around 451 km, with an indicative drive time of 5 h 1 min.

Straight-line distance 399.2 km
Estimated road distance ~451 km
Indicative drive time 5 h 1 min
Note: values are approximate estimates. Road distance is calculated by multiplying the straight-line distance by a road-deviation factor (1.13–1.30 based on length). Drive time assumes ~90 km/h average. Real traffic, tolls, and conditions can vary significantly. Use the live planner for current data.

Trip cost and route type: Mercier – Mattawa

Route type Long

Long route (over 300 km) — plan a break roughly every 2 hours and check highway traffic and weather.

Indicative fuel cost $51–$68

Estimate: ~451 km, 8 L/100 km, $1.65/L. ±15%. Excludes tolls.

Driving directions from Mercier to Mattawa

The map shows the locations of Mercier (A) and Mattawa (B). Use the form below to calculate the up-to-date road route with turn-by-turn directions, real distance, and estimated drive time.

Avoid:

Prefer another app? Open in Google Maps ↗

Driving directions from Mercier to Mattawa

Real distance: 512.8 km  ·  Estimated time: 6 h 51 min

🗓 Calculated on June 3, 2026
  1. Drive west on Rue des Perdrix. 239 m
  2. Turn left onto Rue des Rossignols. 123 m
  3. Turn left onto Rue Marleau. 1.0 km
  4. Turn right onto Boulevard Saint-Jean-Baptiste/138. 6.5 km
  5. Turn right onto Chemin de la Beauce/205. 8.3 km
  6. Turn left to take the 30 Ouest ramp toward Vaudreuil-Dorion. 19.6 km
  7. Keep right to take exit 5 onto 401 toward Toronto. 458 m
  8. Keep left to take 401 toward Toronto. 106.3 km
  9. Take exit 750 onto CR 31/County Road 31 toward Winchester/Morrisburg. 496 m
  10. Turn right onto County Road 31/CR 31. 24.4 km
  11. Turn left onto County Road 43/CR 43. 19.7 km
  12. Bear left to stay on County Road 43. 2.6 km

Standard car route without avoiding highways. For advanced options (motorcycle, bicycle, transit, avoid tolls) use the live planner above.

Estimate trip cost: Mercier – Mattawa

Litres estimated
Fuel cost
Toll estimate
Total estimate
Range ±15%

Indicative estimates based on ~451 km. Tolls calculated at ~$0.10/km on tolled segments. The calculator updates with the live planner's real distance. Actual consumption, driving style, weather, and toll rates vary.

Origin and destination

Origin

Mercier

Quebec · 45.32000, -73.75000

Mercier is a small municipality on the south shore of the Saint Lawrence River in Quebec's Montérégie region, situated on the outer edge of the Greater Montreal metropolitan area. On maps it appears as a suburban and…

Destination

Mattawa

Ontario · 46.31670, -78.70000

Mattawa sits in northeastern Ontario at the meeting point of two rivers, occupying a compact townsite on a river-valley edge. It functions as a regional waypoint for drivers moving between inland sections of…

How to drive from Mercier to Mattawa

The straight-line distance between Mercier (Quebec) and Mattawa (Ontario) is about 399.2 km. The actual road distance varies by chosen route, road type, and travel conditions — especially in winter and across mountain or northern segments.

Before you leave, consider:

  • Check current traffic with a navigation app — particularly around major cities.
  • Look up any toll segments on your route (Ontario 407, select bridges).
  • In winter or at higher elevations, drive times and conditions can change quickly. Carry a charged phone, fuel reserve, and weather-appropriate gear.
  • Plan stops at service centres or towns along the way — fuel and rest stops can be sparse on remote sections.

Route description: Mercier – Mattawa

The trip from Mercier to Mattawa covers about 451 km on the road (399.2 km straight line). Plan multiple breaks and check highway traffic, weather, and fuel availability — particularly in remote sections. The route connects Quebec to Ontario and is classified as a long route (over 300 km). Click "Update route" for the latest track, turns, and fuel-cost estimate.

The trip starts at Mercier (Quebec) — coordinates 45.3200° N, -73.7500° E. The destination is Mattawa (Ontario), at 46.3167° N, -78.7000° E.

Practical tips for the Mercier – Mattawa drive

Terrain along the way

The route starts in Quebec — a province St. Lawrence valley framed by the Laurentians and the Appalachians — and reaches Mattawa in Ontario, Great Lakes shoreline in the south, Canadian Shield forests across the north. The route also passes near Campbell’s Bay (Quebec).

When to leave

For a long route, leave early (before 06:30) or wait until after 10:00. Avoid summer long-weekend exoduses and major holidays. Plan a break every 1.5–2 hours of driving — and check weather, especially across the Prairies and through mountain passes.

Alternatives

For this route of about 451 km, consider VIA Rail Canada — VIA's Corridor service connects many Eastern Canadian cities, and the long-distance trains (the Canadian, Ocean) run through the Prairies and the Maritimes. Cross-border trips may also include Amtrak's Adirondack or Cascades. Check schedules at viarail.ca and amtrak.com.

Explore Mattawa

Full information about Mattawa: interactive map, GPS coordinates, elevation, nearby cities, and routes to and from Mattawa.

Mattawa profile →

Explore Mercier

Full information about Mercier: map, GPS coordinates, and all routes from Mercier to other Canadian cities.

Mercier profile →

Related tools

Cities along the Mercier – Mattawa route

These cities are near the direct route between Mercier and Mattawa. They may be useful as a stopover or alternate destination.

Routes with intermediate stops: Mercier → Campbell’s Bay · Mercier → Wakefield · Mercier → Shawville

Related routes

From Mercier to other cities:

To Mattawa from other cities:

From Mattawa to intermediate cities:

All info about Mercier →  ·  All info about Mattawa →

Popular routes from Quebec

Most-searched routes from Quebec, ranked by popularity.

All cities of Quebec →

Frequently asked questions: Mercier – Mattawa

What is the straight-line distance between Mercier and Mattawa?

The straight-line distance between Mercier and Mattawa is about 399.2 km. This is the direct geometric distance between the two coordinates, ignoring road geometry.

What is the estimated road distance from Mercier to Mattawa?

The estimated road distance from Mercier to Mattawa is about 451 km — derived by multiplying the straight-line distance by a road-deviation factor (1.13–1.30 based on length). For an up-to-date route, use the live planner.

How long does it take to drive from Mercier to Mattawa?

Indicative drive time from Mercier to Mattawa is about 5 h 1 min, based on an average highway speed of 90 km/h on a mixed motorway/highway profile. Real time depends on traffic, weather, stops, vehicle type, and conditions.

How do I get up-to-date driving directions from Mercier to Mattawa?

Use the live planner on this page: select your transport mode and click "Update route". You'll see the route with turn-by-turn directions, current distance, and estimated time based on up-to-date routing data.

Does the Mercier–Mattawa route involve highway tolls?

CanadaDrivingDirections.com does not provide toll details. Toll roads are limited in Canada — Ontario's 407 ETR, a few Quebec bridges, and the Confederation Bridge to PEI are the main ones. Check the operator's site for current pricing.

How does traffic affect the route from Mercier to Mattawa?

Traffic varies by time of day, season, and weather. The live planner uses up-to-date routing data; for live traffic, use a navigation app before departure — especially in winter when conditions can change rapidly.

Is there an alternative route from Mercier to Mattawa?

A common alternative is going via Campbell’s Bay or Wakefield. Use the live planner to compare routes.

Can I open the Mercier–Mattawa route in Google Maps?

Yes. Click "Open in Google Maps" on this page to view the route in the Google Maps app or browser. You can also open Google Maps directly and enter Mercier as origin and Mattawa as destination.