How far is Hemlock, PA from Allentown, PA?

The driving distance from Hemlock, PA to Allentown, PA is about 270.8 miles (435.8 km), with a travel time of about 05h 13m by car.

  • The straight-line flight distance is about 204.2 miles (328.7 km).
  • For a round trip, plan for roughly 10h 27m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 8:00 AM EDT.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
270.77 mi
05h 13m
Flight
204.21 mi
328.65 km direct

This drive is better planned with a longer stop or an overnight stay.

Learn Distance

Choose another destination from Hemlock.

Flight Distance

Direct air line
204.21 mi
Kilometers
328.65 km
Flight Time
00h 24m

Driving Distance

Road route
270.77 mi
Kilometers
435.77 km
Drive Time
05h 13m

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 13m.

Arrival Snapshot
Arrive in Allentown
Wed, May 13, 3:47 AM EDT
Return by in Hemlock
Wed, May 13, 9:01 AM EDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Hemlock
2026-05-12T22:33
Arrive Allentown
Wed, May 13, 3:47 AM EDT
Route Timing
05h 13m
One way by road
Best Departure Window
6:00 AM to 8:00 AM EDT
Leave early for more breathing room
Arrive between
11:14 AM to 1:14 PM EDT

An early departure helps you fit a real stop into the day without turning the return into a late-night drive.

Leave by
6:32 AM EDT
Keeps a same-day return open with about 04h 00m at the destination.
Back in Hemlock
9:00 PM EDT
Early departure recommended

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.

Mid-route stop
Lamar
PA

Clinton County, Pennsylvania, USA

From Hemlock
135.1 mi
02h 36m
To Allentown
135.6 mi
02h 36m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
63°F
Tuesday

Widespread Frost then Sunny

Starts
Tue, May 12 6:00 AM EDT
Wind
0 to 5 mph SW
Destination
66°F
Tuesday

Sunny

Starts
Tue, May 12 6:00 AM EDT
Wind
5 mph NW

Driving Route Map

The map below follows the saved road route between Hemlock and Allentown.

Turn-by-Turn Driving Directions

Step-by-step road directions between Hemlock and Allentown.

  1. 1

    Start on the route

    30 m · 9 sec

  2. 2

    Turn left onto Hemlock Road

    3.5 mi · 13 min · Hemlock Road

  3. 3

    Continue on Hemlock Street

    1993 ft · 2 min · Hemlock Street

  4. 4

    Turn left onto Pennsylvania Avenue East

    805 ft · 33 sec · Pennsylvania Avenue East

  5. 5

    At the end of the road, turn left onto Main Street

    1169 ft · 35 sec · Main Street

  6. 6

    Continue on Grand Army of the Republic Highway

    2.9 mi · 5 min · Grand Army of the Republic Highway

  7. 7

    Continue on North Main Street

    1.4 mi · 3 min · North Main Street

  8. 8

    Continue on Grand Army of the Republic Highway

    4.5 mi · 6 min · Grand Army of the Republic Highway

  9. 9

    Continue on West Main Street

    1.1 mi · 2 min · West Main Street

  10. 10

    Take the exit slight right toward PA 666 West

    81 m · 9 sec

  11. 11

    Merge slight left onto South Main Street

    2.3 mi · 4 min · South Main Street

  12. 12

    Continue straight

    8.5 mi · 12 min

  13. 13

    At the end of the road, turn left

    2.9 mi · 4 min

  14. 14

    Turn right

    15.2 mi · 23 min

  15. 15

    Turn left onto West Main Street

    1 mi · 3 min · West Main Street

  16. 16

    Continue on Boot Jack Road

    11.2 mi · 16 min · Boot Jack Road

  17. 17

    Turn left onto Penfield Road

    3.7 mi · 6 min · Penfield Road

  18. 18

    Continue on Hoovertown Road

    5 mi · 9 min · Hoovertown Road

  19. 19

    Continue on State Park Road

    8.1 mi · 14 min · State Park Road

  20. 20

    Turn left

    1681 ft · 41 sec

  21. 21

    Merge slight left onto Keystone Shortway

    112.7 mi · 2 hr 1 min · Keystone Shortway

  22. 22

    Take the exit slight right toward PA 54: Danville, Washingtonville

    1080 ft · 27 sec

  23. 23

    Turn slight left

    24 m · 3 sec

  24. 24

    Turn right onto Continental Boulevard

    2.9 mi · 4 min · Continental Boulevard

  25. 25

    Continue on Factory Street

    716 ft · 20 sec · Factory Street

  26. 26

    Continue on Danville-Riverside Bridge Road

    1799 ft · 49 sec · Danville-Riverside Bridge Road

  27. 27

    Turn left onto Elysburg Road

    9.7 mi · 11 min · Elysburg Road

  28. 28

    Continue on State Route 54

    11.1 mi · 13 min · State Route 54

  29. 29

    Continue on Locust Gap Highway

    1897 ft · 42 sec · Locust Gap Highway

  30. 30

    Continue on Fairgrounds Road

    2.2 mi · 2 min · Fairgrounds Road

  31. 31

    Continue on Sunbury Road

    9.4 mi · 11 min · Sunbury Road

  32. 32

    Continue on Sunbury Street

    1.2 km · 1 min · Sunbury Street

  33. 33

    Turn right onto Pottsville Minersville Highway

    1.8 mi · 2 min · Pottsville Minersville Highway

  34. 34

    Turn right onto Gordon Nagle Trail

    4 mi · 7 min · Gordon Nagle Trail

  35. 35

    Continue on North Sillyman Street

    1281 ft · 33 sec · North Sillyman Street

  36. 36

    Turn left onto Pottsville Street

    1.1 km · 2 min · Pottsville Street

  37. 37

    Turn right onto Route 61 South

    150 m · 6 sec · Route 61 South

  38. 38

    Continue on Center Avenue

    10.6 mi · 13 min · Center Avenue

  39. 39

    Continue on Centre Street

    2.7 mi · 4 min · Centre Street

  40. 40

    Take the exit slight right toward I 78 East, US 22 East: Allentown

    1423 ft · 41 sec

  41. 41

    Merge slight left onto William Penn Highway

    21.6 mi · 27 min · William Penn Highway

  42. 42

    Keep slight right to continue on Lehigh Valley Thruway

    1.5 km · 1 min · Lehigh Valley Thruway

  43. 43

    Take the exit slight right toward Cetronia

    1053 ft · 27 sec

  44. 44

    Turn straight onto Tilghman Street

    4.9 mi · 8 min · Tilghman Street

  45. 45

    Arrive at your destination

    0 m · 1 sec · Tilghman Street

Car Route Details

A richer read on the saved driving route between Hemlock and Allentown.

OSRM road route
Drive Character

Interchange-aware route

The drive includes several ramps, exits, or merges, so checking the next few maneuvers before busy interchanges is useful.

Directions
45 steps
16 turns on the saved route
Ramps & Exits
7
3 merges, 4 ramps or exits
Navigation Density
16.6 / 100 mi
Decision points by distance
Main Roads
Keystone Shortway
113 mi · 42%
William Penn Highway
21.6 mi · 8%
Boot Jack Road
11.2 mi · 4%
State Route 54
11.1 mi · 4%
South Main Street
10.8 mi · 4%
Center Avenue
10.6 mi · 4%
Longest Stretch

Keystone Shortway

Merge slight left onto Keystone Shortway

113 mi · 02h 01m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

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.

Drive Time
05h 13m
Long day trip
Same-Day Return
10h 28m
Round-trip wheel time
Road vs Air
+66.6 mi
204.2 mi direct line
Halfway Stop
Lamar
02h 36m from Hemlock
Leave By
6:32 AM EDT
Early departure recommended
Weather Watch

Widespread Frost then Sunny leaving Hemlock and Sunny near Allentown.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Hemlock to Allentown?

The road trip is about 270.8 miles (435.8 km) and usually takes 05h 13m 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?

Lamar is a useful midpoint, sitting about 135.1 miles from Hemlock and 135.6 miles from Allentown.

How much longer is the road route than the straight-line distance?

The direct path is about 204.2 miles (328.7 km), while the road route adds roughly 66.6 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 6:00 AM to 8:00 AM EDT. If you want a more comfortable same-day return, try to leave by 6:32 AM EDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $39.06 one way or $78.12 round trip. Estimated CO2 is about 85 kg one way.

What should you check before leaving?

Before you leave, expect Widespread Frost then Sunny around Hemlock and Sunny near Allentown.

Stop Ideas Near Lamar

Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.

Mid-route Guidance
Local place coverage is thin around Lamar, so nearby transit and meeting points are shown instead.
Reviewed stop coverage is still thin around this midpoint, so practical transit waypoints are shown on the right.

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Lamar.

RAIL

Lewistown

48 mi away
150 Helen Street
RAIL

Tyrone

71 mi away
Pennsylvania Ave and West 10th St.
RAIL

Huntingdon

72 mi away
Fourth and Allegheny Sts.
RAIL

Altoona Transportation Center

92 mi away
1231 11th Avenue

Flight Path Map

This map shows the direct air route between Hemlock and Allentown. Straight-line distance: 204.21 mi (328.65 km).

Hemlock

#1 Hemlock

Township in western Columbia County, Pennsylvania

Population2,261
Coordinates41.8492300, -79.0575400
Altitude368
CountryUnited States
Allentown

#2 Allentown

The third most populous city in Pennsylvania.

Population121,470
Coordinates40.6084300, -75.4901800
Altitude103
CountryUnited States
Start: (-79.057229, 41.849303)
End: Tilghman Street (-75.490007, 40.608068)

Estimated Travel Time

Distance: 436 km by road

SpeedTime
30 mph (48.3 km/h)09h 01m
40 mph (64.37 km/h)06h 46m
50 mph (80.47 km/h)05h 24m
60 mph (96.56 km/h)04h 30m
70 mph (112.65 km/h)03h 52m
80 mph (129 km/h)03h 22m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
9.56 gal
36.17 L · about $39.06
Round trip
$78.12
19.12 gal · 72.34 L
Estimated CO2
85 kg one way
Round trip: 169.9 kg / 375 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $4.09 $39.06 $78.12
Mid-grade $4.60 $43.97 $87.93
Premium $4.95 $47.36 $94.72
Diesel $5.98 $57.17 $114.34

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 · May 13, 2026

There is no time difference between Hemlock and Allentown. The current time is 22:33:58.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.