Driving route · Canada

Route from Saint-Léonard to Mercier

Interactive map, distance, and indicative drive time for the route from Saint-Léonard to Mercier — 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 Saint-Léonard (New Brunswick) and Mercier (Quebec). Use the live planner below to get up-to-date driving directions by car, on foot, or by bicycle.

Distance from Saint-Léonard to Mercier

The straight-line distance between Saint-Léonard and Mercier is 492.4 km. The estimated road distance by car is around 556 km, with an indicative drive time of 6 h 11 min.

Straight-line distance 492.4 km
Estimated road distance ~556 km
Indicative drive time 6 h 11 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: Saint-Léonard – Mercier

Route type Long

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

Indicative fuel cost $62–$84

Estimate: ~556 km, 8 L/100 km, $1.65/L. ±15%. Excludes tolls.

Driving directions from Saint-Léonard to Mercier

The map shows the locations of Saint-Léonard (A) and Mercier (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 Saint-Léonard to Mercier

Real distance: 611.3 km  ·  Estimated time: 8 h 21 min

🗓 Calculated on June 4, 2026
  1. Drive northeast on NB 17/Rue du Pont/Du Pont Street. 83 m
  2. Turn left onto Rue Principale/Principale Street/NB 144. Continue on NB 144. 2.5 km
  3. Turn right onto Chemin de la Grande Rivière/Grande Rivière Road. 361 m
  4. Turn left to take the NB 2 ramp. 96.2 km
  5. Keep left to take 85. 52.6 km
  6. Keep left to take 85/Autoroute Claude-Béchard. 191.3 km
  7. Keep left to stay on 20 toward Montréal. 216.2 km
  8. Take exit 98 onto 30 toward Vaudreuil-Dorion. 180 m
  9. Keep left to take 30 Ouest toward Vaudreuil-Dorion. 26.4 km
  10. Keep left to stay on 30/Autoroute de l'Acier. 20.2 km
  11. Take exit 38 onto 138 toward Châteauguay Centre Ville/Mercier. 445 m
  12. Turn left onto 138/Boulevard Saint-Jean-Baptiste. 3.5 km

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

Estimate trip cost: Saint-Léonard – Mercier

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

Indicative estimates based on ~556 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

Saint-Léonard

New Brunswick · 47.16250, -67.92500

Saint-Léonard sits in northwestern New Brunswick as a small, locally oriented town at the head of a river valley. It functions chiefly as a focal point for surrounding rural and agricultural areas rather than being part…

Destination

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…

How to drive from Saint-Léonard to Mercier

The straight-line distance between Saint-Léonard (New Brunswick) and Mercier (Quebec) is about 492.4 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: Saint-Léonard – Mercier

The route connects New Brunswick to Quebec: from Saint-Léonard to Mercier you cover roughly 556 km on the road (geometric distance 492.4 km). A long route (over 300 km). Plan multiple breaks and check highway traffic, weather, and fuel availability — particularly in remote sections. The live planner calculates the optimal route with step-by-step instructions and trip cost.

The trip starts at Saint-Léonard (New Brunswick) — coordinates 47.1625° N, -67.9250° E. The destination is Mercier (Quebec), at 45.3200° N, -73.7500° E.

Practical tips for the Saint-Léonard – Mercier drive

Terrain along the way

The route starts in New Brunswick — a province forested and Acadian, with the Bay of Fundy and tidal coastlines — and reaches Mercier in Quebec, St. Lawrence valley framed by the Laurentians and the Appalachians. The route also passes near East Broughton (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 556 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 Mercier

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

Mercier profile →

Explore Saint-Léonard

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

Saint-Léonard profile →

Related tools

Cities along the Saint-Léonard – Mercier route

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

Routes with intermediate stops: Saint-Léonard → East Broughton · Saint-Léonard → Saint-Georges · Saint-Léonard → Sainte-Marie

Related routes

From Saint-Léonard to other cities:

To Mercier from other cities:

From Mercier to intermediate cities:

All info about Saint-Léonard →  ·  All info about Mercier →

Popular routes from New Brunswick

Most-searched routes from New Brunswick, ranked by popularity.

All cities of New Brunswick →

Frequently asked questions: Saint-Léonard – Mercier

What is the straight-line distance between Saint-Léonard and Mercier?

The straight-line distance between Saint-Léonard and Mercier is about 492.4 km. This is the direct geometric distance between the two coordinates, ignoring road geometry.

What is the estimated road distance from Saint-Léonard to Mercier?

The estimated road distance from Saint-Léonard to Mercier is about 556 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 Saint-Léonard to Mercier?

Indicative drive time from Saint-Léonard to Mercier is about 6 h 11 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 Saint-Léonard to Mercier?

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 Saint-Léonard–Mercier 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 Saint-Léonard to Mercier?

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 Saint-Léonard to Mercier?

A common alternative is going via East Broughton or Saint-Georges. Use the live planner to compare routes.

Can I open the Saint-Léonard–Mercier 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 Saint-Léonard as origin and Mercier as destination.