How far is Pittsburgh, PA from Mercer, PA?
The driving distance from Pittsburgh, PA to Mercer, PA is about 61.8 miles (99.4 km), with a travel time of about 01h 17m by car.
- The straight-line flight distance is about 55.8 miles (89.8 km).
- For a round trip, plan for roughly 02h 35m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 01h 17m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Borough in Pennsylvania, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Driving Route Map
The map below follows the saved road route between Pittsburgh and Mercer.
Turn-by-Turn Driving Directions
Step-by-step road directions between Pittsburgh and Mercer.
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1
Start on Grant Street
14 m · 5 sec · Grant Street
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2
Turn right onto Sixth Avenue
94 m · 12 sec · Sixth Avenue
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3
Turn left onto Bigelow Square
111 m · 8 sec · Bigelow Square
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4
Continue on Bigelow Boulevard
871 ft · 19 sec · Bigelow Boulevard
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5
Take the ramp straight toward I 579: Veterans Bridge
1955 ft · 47 sec
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6
Merge slight left onto Veterans Bridge
1.4 km · 1 min · Veterans Bridge
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7
Continue on Parkway North
11.6 mi · 16 min · Parkway North
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8
Merge slight left
40.6 mi · 45 min
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9
Take the exit slight right toward PA 208, PA 258: Grove City
1626 ft · 48 sec
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10
Turn left onto Leesburg Grove City Road
909 ft · 31 sec · Leesburg Grove City Road
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11
Turn straight
133 m · 20 sec
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12
Turn right onto State Route 258
6 mi · 10 min · State Route 258
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13
Continue on Butler Pike
1.2 mi · 2 min · Butler Pike
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14
Turn left onto East Butler Street
563 ft · 18 sec · East Butler Street
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15
Turn right onto South Erie Street
605 ft · 17 sec · South Erie Street
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16
Arrive at your destination
0 m · 1 sec · Erie Street
Car Route Details
A richer read on the saved driving route between Pittsburgh and Mercer.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Parkway North
Merge slight left
40.6 mi · 00h 45m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Sunny leaving Pittsburgh and Sunny near Mercer.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Pittsburgh to Mercer?
The road trip is about 61.8 miles (99.4 km) and usually takes 01h 17m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Harmony is a useful midpoint, sitting about 30.9 miles from Pittsburgh and 30.9 miles from Mercer.
How much longer is the road route than the straight-line distance?
The direct path is about 55.8 miles (89.8 km), while the road route adds roughly 6 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 3:54 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $8.91 one way or $17.81 round trip. Estimated CO2 is about 19.4 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Pittsburgh and Sunny near Mercer.
Stop Ideas Near Harmony
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Harmony.
Union Station
Greensburg
Latrobe station
Alliance
Flight Path Map
This map shows the direct air route between Pittsburgh and Mercer. Straight-line distance: 55.81 mi (89.82 km).
#1 Pittsburgh
The second most populous city in Pennsylvania and the center of the Pittsburgh metropolitan area.
| Population | 299,226 |
| Coordinates | 40.4406200, -79.9958900 |
| Altitude | 233 |
| Country | United States |
#2 Mercer
Borough in Mercer County, Pennsylvania, United States
| Population | 1,865 |
| Coordinates | 41.2270000, -80.2397900 |
| Altitude | 395 |
| Country | United States |
End: Mercer (-80.23979, 41.227)
Estimated Travel Time
Distance: 99 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 03m |
| 40 mph (64.37 km/h) | 01h 32m |
| 50 mph (80.47 km/h) | 01h 14m |
| 60 mph (96.56 km/h) | 01h 01m |
| 70 mph (112.65 km/h) | 00h 52m |
| 80 mph (129 km/h) | 00h 46m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $8.91 | $17.81 |
| Mid-grade | $4.60 | $10.03 | $20.05 |
| Premium | $4.95 | $10.80 | $21.60 |
| Diesel | $5.98 | $13.04 | $26.07 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Pennsylvania · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.