How far is Palmer Lake, CO from Boulder, CO?

The driving distance from Palmer Lake, CO to Boulder, CO is about 76 miles (122.3 km), with a travel time of about 01h 26m by car.

  • The straight-line flight distance is about 64.5 miles (103.8 km).
  • For a round trip, plan for roughly 02h 53m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 8:00 AM to 10:00 AM MDT.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
76.02 mi
01h 26m
Flight
64.49 mi
103.79 km direct

This route works well as a day trip with time at the destination.

Learn Distance

Choose another destination from Palmer Lake.

Flight Distance

Direct air line
64.49 mi
Kilometers
103.79 km
Flight Time
00h 07m

Driving Distance

Road route
76.02 mi
Kilometers
122.34 km
Drive Time
01h 26m

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 26m.

Arrival Snapshot
Arrive in Boulder
Thu, Apr 23, 12:34 AM MDT
Return by in Palmer Lake
Thu, Apr 23, 2:01 AM MDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Palmer Lake
2026-04-22T23:08
Arrive Boulder
Thu, Apr 23, 12:34 AM MDT
Route Timing
01h 26m
One way by road
Best Departure Window
8:00 AM to 10:00 AM MDT
Aim for a morning departure
Arrive between
9:27 AM to 11:27 AM MDT

A morning start gives you useful time at the destination and keeps the return out of the late evening.

Leave by
3:36 PM MDT
Keeps a same-day return open with about 03h 00m at the destination.
Back in Palmer Lake
9:30 PM MDT
Morning start is best

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
Castlewood
CO

City in Hamlin County, South Dakota, United States

From Palmer Lake
39.1 mi
00h 43m
To Boulder
36.9 mi
00h 43m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
63°F
Wednesday

Sunny then Patchy Blowing Dust

Starts
Wed, Apr 22 6:00 AM MDT
Wind
15 to 25 mph SW
Destination
75°F
Wednesday

Mostly Sunny

Starts
Wed, Apr 22 6:00 AM MDT
Wind
7 to 17 mph SW

Driving Route Map

The map below follows the saved road route between Palmer Lake and Boulder.

Turn-by-Turn Driving Directions

Step-by-step road directions between Palmer Lake and Boulder.

  1. 1

    Start on Upper Glenway

    68 m · 11 sec · Upper Glenway

  2. 2

    Turn right onto Pie Corner

    610 ft · 32 sec · Pie Corner

  3. 3

    At the end of the road, turn left

    2134 ft · 1 min

  4. 4

    Continue on Spruce Mountain Road

    52 m · 6 sec · Spruce Mountain Road

  5. 5

    Turn right onto County Line Road

    2.6 mi · 5 min · County Line Road

  6. 6

    Take the ramp left

    1314 ft · 32 sec

  7. 7

    Merge slight left

    53 mi · 1 hr

  8. 8

    Take the exit slight left toward US 36 West: Westminster, Boulder

    2930 ft · 52 sec

  9. 9

    Merge slight right onto Denver–Boulder Turnpike

    2.1 mi · 2 min · Denver–Boulder Turnpike

  10. 10

    Keep slight right to continue on Denver–Boulder Turnpike

    1.7 mi · 2 min · Denver–Boulder Turnpike

  11. 11

    Keep slight right to continue on Denver–Boulder Turnpike

    2.3 mi · 3 min · Denver–Boulder Turnpike

  12. 12

    Keep slight right to continue on Denver–Boulder Turnpike

    1.9 mi · 2 min · Denver–Boulder Turnpike

  13. 13

    Keep slight right to continue on Denver–Boulder Turnpike

    2.1 mi · 2 min · Denver–Boulder Turnpike

  14. 14

    Keep slight right to continue on Denver–Boulder Turnpike

    2.9 mi · 3 min · Denver–Boulder Turnpike

  15. 15

    Keep slight right to continue on Denver–Boulder Turnpike

    2.4 mi · 3 min · Denver–Boulder Turnpike

  16. 16

    Keep slight right to continue on Denver–Boulder Turnpike

    2.2 mi · 3 min · Denver–Boulder Turnpike

  17. 17

    Keep slight left to continue on Denver–Boulder Turnpike

    2.3 mi · 3 min · Denver–Boulder Turnpike

  18. 18

    Continue on 28th Street

    1.2 km · 2 min · 28th Street

  19. 19

    Turn left onto Arapahoe Avenue

    1 km · 2 min · Arapahoe Avenue

  20. 20

    Turn right onto 19th Street

    44 m · 11 sec · 19th Street

  21. 21

    Turn left

    27 m · 5 sec

  22. 22

    Arrive at your destination

    0 m · 1 sec

Car Route Details

A richer read on the saved driving route between Palmer Lake and Boulder.

OSRM road route
Drive Character

Turn-heavy local drive

The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.

Directions
22 steps
15 turns on the saved route
Ramps & Exits
4
2 merges, 2 ramps or exits
Navigation Density
28.9 / 100 mi
Decision points by distance
Main Roads
County Line Road
55.8 mi · 73%
Denver–Boulder Turnpike
19.8 mi · 26%
28th Street
0.76 mi · 1%
Arapahoe Avenue
0.64 mi · 1%
US 36 West
0.55 mi · 1%
Pie Corner
0.12 mi
Longest Stretch

County Line Road

Merge slight left

53 mi · 01h 00m

Route Summary

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

Trip Read

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.

Drive Time
01h 26m
Day trip friendly
Same-Day Return
02h 54m
Round-trip wheel time
Road vs Air
+11.5 mi
64.5 mi direct line
Halfway Stop
Castlewood
00h 43m from Palmer Lake
Leave By
3:36 PM MDT
Morning start is best
Weather Watch

Sunny then Patchy Blowing Dust leaving Palmer Lake and Mostly Sunny near Boulder.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Palmer Lake to Boulder?

The road trip is about 76 miles (122.3 km) and usually takes 01h 26m 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?

Castlewood is a useful midpoint, sitting about 39.1 miles from Palmer Lake and 36.9 miles from Boulder.

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

The direct path is about 64.5 miles (103.8 km), while the road route adds roughly 11.5 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 MDT. If you want a more comfortable same-day return, try to leave by 3:36 PM MDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $9.91 one way or $19.82 round trip. Estimated CO2 is about 23.8 kg one way.

What should you check before leaving?

Before you leave, expect Sunny then Patchy Blowing Dust around Palmer Lake and Mostly Sunny near Boulder.

Stop Ideas Near Castlewood

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

Mid-route Guidance
These suggestions come from reviewed places and nearby services around Castlewood and the surrounding midpoint area.
Fairplay Park
Scenic stop 9.9 mi away

Fairplay Park

Aurora , CO
2200 Altura Blvd, Aurora, CO 80011
Rating 4.2/5 125 reviews Tourist attraction,Park
Denver City Council
Meeting point 9.4 mi away

Denver City Council

Denver , CO
1437 Bannock St rm 451, Denver, CO 80202
Rating 3.6/5 92 reviews City government office,County government office
Town Hall Arts Center
Nearby stop 6.2 mi away

Town Hall Arts Center

Littleton , CO
2450 Main St, Littleton, CO 80120
Rating 4.7/5 204 reviews Performing arts theater,Art gallery
City of Littleton
Scenic stop 6 mi away

City of Littleton

Littleton , CO
2255 W Berry Ave, Littleton, CO 80165
Rating 5.0/5 1 reviews City government office,Local government office,Museum

Transit and Meeting Points

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

BUS

Denver (Bus Station), Colorado

20 mi away
1055 19th Street
RAIL

Union Station

21 mi away
1701 Wynkoop Street
BUS

Pine Junction, CO

44 mi away
76 Mount Evans Boulevard
BUS

Boulder, Colorado

62 mi away
30th & Diagonal Highway

Flight Path Map

This map shows the direct air route between Palmer Lake and Boulder. Straight-line distance: 64.49 mi (103.79 km).

Palmer Lake

#1 Palmer Lake

City in El Paso County, Colorado, United States of America

Population3,037
Coordinates39.1222100, -104.9172000
Altitude2224
CountryUnited States
Boulder

#2 Boulder

The most populous city in Boulder County, Colorado.

Population107,645
Coordinates40.0149900, -105.2705500
Altitude1624
CountryUnited States
Start: Upper Glenway (-104.917432, 39.122409)
End: (-105.27055, 40.014996)

Estimated Travel Time

Distance: 122 km by road

SpeedTime
30 mph (48.3 km/h)02h 31m
40 mph (64.37 km/h)01h 54m
50 mph (80.47 km/h)01h 31m
60 mph (96.56 km/h)01h 16m
70 mph (112.65 km/h)01h 05m
80 mph (129 km/h)00h 56m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
2.68 gal
10.15 L · about $9.91
Round trip
$19.82
5.36 gal · 20.3 L
Estimated CO2
23.8 kg one way
Round trip: 47.6 kg / 105 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.70 $9.91 $19.82
Mid-grade $4.08 $10.95 $21.89
Premium $4.39 $11.77 $23.54
Diesel $4.74 $12.70 $25.39

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 Colorado · Apr 23, 2026

There is no time difference between Palmer Lake and Boulder. The current time is 23:08:02.

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.