How far is Bethlehem, PA from Mercer, PA?
The driving distance from Bethlehem, PA to Mercer, PA is about 301.8 miles (485.7 km), with a travel time of about 05h 50m by car.
- The straight-line flight distance is about 257.6 miles (414.5 km).
- For a round trip, plan for roughly 11h 41m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM EDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 05h 50m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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 of America
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 Bethlehem and Mercer.
Turn-by-Turn Driving Directions
Step-by-step road directions between Bethlehem and Mercer.
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1
Start on Linden Street
112 m · 13 sec · Linden Street
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2
Turn right onto East Union Boulevard
1.3 km · 2 min · East Union Boulevard
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3
Take the ramp right
1240 ft · 30 sec
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4
Merge slight left onto Bethlehem Spur Route
2.3 mi · 3 min · Bethlehem Spur Route
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5
Keep slight left to continue on US 22 West: Allentown
1.3 km · 2 min
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6
Merge slight left onto Lehigh Valley Thruway
3.2 mi · 4 min · Lehigh Valley Thruway
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7
Take the exit slight right toward PA 145
981 ft · 35 sec
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8
Keep slight right to continue on PA 145 North
73 m · 9 sec
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9
Merge slight left onto MacArthur Road
4.5 mi · 8 min · MacArthur Road
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10
Continue on Macarthur Road
7.4 mi · 10 min · Macarthur Road
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11
Continue on South Best Avenue
1 mi · 1 min · South Best Avenue
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12
Continue on North Best Avenue
2260 ft · 33 sec · North Best Avenue
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13
Continue on Riverview Drive
1.4 mi · 2 min · Riverview Drive
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14
At the end of the road, turn left onto Lehigh Drive
7 mi · 10 min · Lehigh Drive
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15
Turn left onto Bridge Street
2482 ft · 1 min · Bridge Street
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16
Continue on Bankway Street
550 ft · 7 sec · Bankway Street
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17
Continue on Sargent Stanley Hoffman Boulevard
3242 ft · 55 sec · Sargent Stanley Hoffman Boulevard
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18
Continue on North 1st Street
1.4 km · 2 min · North 1st Street
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19
Continue on Mauch Chunk Street
1.9 mi · 2 min · Mauch Chunk Street
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20
Continue on Susquehanna Street
1589 ft · 39 sec · Susquehanna Street
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21
Turn right onto Lehigh Avenue
38 m · 2 sec · Lehigh Avenue
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22
Continue on Lehigh Street
2384 ft · 33 sec · Lehigh Street
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23
Continue on Lehigh Avenue
1431 ft · 22 sec · Lehigh Avenue
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24
Continue on East Catawissa Street
2.5 mi · 3 min · East Catawissa Street
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25
Turn right onto Hudson Drive
160 m · 8 sec · Hudson Drive
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26
Continue on Hunter Street
2.8 mi · 4 min · Hunter Street
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27
Continue on Hudson Drive
5.7 mi · 8 min · Hudson Drive
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28
Continue on Broad Street
2666 ft · 35 sec · Broad Street
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29
Continue on Berwick Street
1 mi · 1 min · Berwick Street
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30
Continue on East Broad Street
3.8 mi · 5 min · East Broad Street
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31
Continue on North Broad Street
2738 ft · 39 sec · North Broad Street
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32
Turn straight onto Susquehanna Boulevard
2.3 mi · 3 min · Susquehanna Boulevard
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33
Continue on Valmont Parkway
1199 ft · 31 sec · Valmont Parkway
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34
Continue on State Route 93
3.7 mi · 7 min · State Route 93
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35
Continue on Berwick Hazleton Highway
1.2 km · 1 min · Berwick Hazleton Highway
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36
Take the ramp slight right
1125 ft · 28 sec
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37
Merge slight left onto Keystone Shortway
240.6 mi · 4 hr 19 min · Keystone Shortway
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38
Take the exit slight right toward US 19: Mercer
816 ft · 23 sec
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39
Keep slight right
73 m · 8 sec
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40
Turn straight onto South Erie Street
2.3 mi · 4 min · South Erie Street
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41
Arrive at your destination
0 m · 1 sec · Erie Street
Car Route Details
A richer read on the saved driving route between Bethlehem and Mercer.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Keystone Shortway
Merge slight left onto Keystone Shortway
241 mi · 04h 19m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Sunny leaving Bethlehem and Sunny near Mercer.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Bethlehem to Mercer?
The road trip is about 301.8 miles (485.7 km) and usually takes 05h 50m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Howard is a useful midpoint, sitting about 150.6 miles from Bethlehem and 151.1 miles from Mercer.
How much longer is the road route than the straight-line distance?
The direct path is about 257.6 miles (414.5 km), while the road route adds roughly 44.2 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 6:00 AM to 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 5:18 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $43.52 one way or $87.03 round trip. Estimated CO2 is about 94.6 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Bethlehem and Sunny near Mercer.
Stop Ideas Near Howard
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 Howard.
Lewistown
Tyrone
Huntingdon
Altoona Transportation Center
Flight Path Map
This map shows the direct air route between Bethlehem and Mercer. Straight-line distance: 257.53 mi (414.45 km).
#1 Bethlehem
The second most populous city in Northampton County, Pennsylvania.
| Population | 74,892 |
| Coordinates | 40.6259300, -75.3704600 |
| Altitude | 109 |
| 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: 486 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 10h 03m |
| 40 mph (64.37 km/h) | 07h 32m |
| 50 mph (80.47 km/h) | 06h 02m |
| 60 mph (96.56 km/h) | 05h 01m |
| 70 mph (112.65 km/h) | 04h 18m |
| 80 mph (129 km/h) | 03h 45m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $43.52 | $87.03 |
| Mid-grade | $4.60 | $48.98 | $97.96 |
| Premium | $4.95 | $52.76 | $105.52 |
| Diesel | $5.98 | $63.69 | $127.37 |
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.