How far is Bethlehem, PA from Mars, PA?
The driving distance from Bethlehem, PA to Mars, PA is about 302.2 miles (486.4 km), with a travel time of about 05h 56m by car.
- The straight-line flight distance is about 243.3 miles (391.5 km).
- For a round trip, plan for roughly 11h 52m 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 56m.
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.
Township in Franklin County, Pennsylvania
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 Mars.
Turn-by-Turn Driving Directions
Step-by-step road directions between Bethlehem and Mars.
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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
9.8 mi · 13 min · Lehigh Valley Thruway
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7
Merge slight left onto William Penn Highway
43.1 mi · 52 min · William Penn Highway
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8
Continue on 78th Division Highway
7.6 mi · 9 min · 78th Division Highway
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9
Keep slight left to continue on I 81 South: Harrisburg
1.1 km · 49 sec
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10
Merge slight left
36.6 mi · 44 min
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11
Take the exit slight right toward US 11: New Kingstown, Middlesex
1419 ft · 49 sec
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12
Keep slight right to continue on US 11 South
61 m · 8 sec
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13
Merge slight left onto Harrisburg Pike
1.6 km · 2 min · Harrisburg Pike
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14
Take the exit straight toward I 76, PATP
2453 ft · 1 min
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15
Keep slight right to continue on I 76 West: Pittsburgh
1304 ft · 37 sec
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16
Merge slight left onto Pennsylvania Turnpike
188 mi · 3 hr 26 min · Pennsylvania Turnpike
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17
Take the exit slight right toward PA 8: Butler Valley, Pittsburgh, Butler
1282 ft · 54 sec
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18
Keep slight right to continue on PA 8 North: Butler
152 m · 12 sec
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19
Merge slight left onto William Flinn Highway
2.5 mi · 5 min · William Flinn Highway
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20
Turn right onto Heckert Road
1583 ft · 1 min · Heckert Road
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21
Turn left onto Bakerstown Road
4.1 mi · 7 min · Bakerstown Road
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22
Turn sharp right onto Babcock Boulevard
1.5 km · 2 min · Babcock Boulevard
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23
Turn left onto Mars Valencia Road
1.7 mi · 3 min · Mars Valencia Road
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24
Continue on Irvine Street
1021 ft · 21 sec · Irvine Street
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25
Turn right onto Crowe Avenue
11 m · 1 sec · Crowe Avenue
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26
Arrive at your destination
0 m · 1 sec · Crowe Avenue
Car Route Details
A richer read on the saved driving route between Bethlehem and Mars.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Pennsylvania Turnpike
Merge slight left onto Pennsylvania Turnpike
188 mi · 03h 26m
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 Mars.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Bethlehem to Mars?
The road trip is about 302.2 miles (486.4 km) and usually takes 05h 56m 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?
Metal is a useful midpoint, sitting about 150.9 miles from Bethlehem and 151.3 miles from Mars.
How much longer is the road route than the straight-line distance?
The direct path is about 243.3 miles (391.5 km), while the road route adds roughly 58.9 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 5:08 AM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $43.56 one way or $87.11 round trip. Estimated CO2 is about 94.7 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Bethlehem and Sunny near Mars.
Stop Ideas Near Metal
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 Metal.
Hancock, MD
Hagerstown, MD
Huntingdon
Martinsburg station
Flight Path Map
This map shows the direct air route between Bethlehem and Mars. Straight-line distance: 243.28 mi (391.52 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 Mars
Borough in Butler County, Pennsylvania, USA
| Population | 1,608 |
| Coordinates | 40.6959000, -80.0117300 |
| Altitude | 317 |
| Country | United States |
End: Mars (-80.01173, 40.6959)
Estimated Travel Time
Distance: 486 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 10h 04m |
| 40 mph (64.37 km/h) | 07h 33m |
| 50 mph (80.47 km/h) | 06h 02m |
| 60 mph (96.56 km/h) | 05h 02m |
| 70 mph (112.65 km/h) | 04h 19m |
| 80 mph (129 km/h) | 03h 46m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $43.56 | $87.11 |
| Mid-grade | $4.60 | $49.03 | $98.05 |
| Premium | $4.95 | $52.81 | $105.62 |
| Diesel | $5.98 | $63.75 | $127.49 |
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.