How far is Boulder, CO from Stonegate, CO?

The driving distance from Boulder, CO to Stonegate, CO is about 49.3 miles (79.4 km), with a travel time of about 01h 04m by car.

  • The straight-line flight distance is about 41.6 miles (67 km).
  • For a round trip, plan for roughly 02h 08m 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
49.33 mi
01h 04m
Flight
41.63 mi
67 km direct

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

Learn Distance

Choose another destination from Boulder.

Flight Distance

Direct air line
41.63 mi
Kilometers
67 km
Flight Time
00h 05m

Driving Distance

Road route
49.33 mi
Kilometers
79.39 km
Drive Time
01h 04m

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 04m.

Arrival Snapshot
Arrive in Stonegate
Sun, Apr 26, 6:38 AM MDT
Return by in Boulder
Sun, Apr 26, 7:42 AM MDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Boulder
2026-04-26T05:33
Arrive Stonegate
Sun, Apr 26, 6:38 AM MDT
Route Timing
01h 04m
One way by road
Best Departure Window
8:00 AM to 10:00 AM MDT
Aim for a morning departure
Arrive between
9:04 AM to 11:04 AM MDT

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

Leave by
4:22 PM MDT
Keeps a same-day return open with about 03h 00m at the destination.
Back in Boulder
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
Berkley
CO

Census designated place

From Boulder
24.7 mi
00h 32m
To Stonegate
24.7 mi
00h 32m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
56°F
Sunday

Showers And Thunderstorms

Starts
Sun, Apr 26 6:00 AM MDT
Wind
2 to 7 mph N
Destination
66°F
Sunday

Showers And Thunderstorms

Starts
Sun, Apr 26 6:00 AM MDT
Wind
6 to 14 mph SW

Driving Route Map

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

Turn-by-Turn Driving Directions

Step-by-step road directions between Boulder and Stonegate.

  1. 1

    Start on the route

    27 m · 7 sec

  2. 2

    Turn right onto 19th Street

    44 m · 14 sec · 19th Street

  3. 3

    Turn left onto Arapahoe Avenue

    3210 ft · 2 min · Arapahoe Avenue

  4. 4

    Turn right onto 28th Street

    1.2 km · 2 min · 28th Street

  5. 5

    Turn straight onto Denver–Boulder Turnpike

    3.4 mi · 4 min · Denver–Boulder Turnpike

  6. 6

    Keep slight right to continue on Denver–Boulder Turnpike

    1.7 mi · 2 min · Denver–Boulder Turnpike

  7. 7

    Keep slight right to continue on Denver–Boulder Turnpike

    2.6 mi · 3 min · Denver–Boulder Turnpike

  8. 8

    Keep slight right to continue on Denver–Boulder Turnpike

    2.4 mi · 3 min · Denver–Boulder Turnpike

  9. 9

    Keep slight right to continue on Denver–Boulder Turnpike

    2.2 mi · 3 min · Denver–Boulder Turnpike

  10. 10

    Keep slight right to continue on Denver–Boulder Turnpike

    1.9 mi · 2 min · Denver–Boulder Turnpike

  11. 11

    Keep slight right to continue on Denver–Boulder Turnpike

    2.5 mi · 3 min · Denver–Boulder Turnpike

  12. 12

    Keep slight right to continue on Denver–Boulder Turnpike

    2 mi · 2 min · Denver–Boulder Turnpike

  13. 13

    Keep slight right to continue on Denver–Boulder Turnpike

    1.1 mi · 1 min · Denver–Boulder Turnpike

  14. 14

    Take the exit slight right toward I 25 south: Denver

    2497 ft · 47 sec

  15. 15

    Continue on I 25 south: Denver

    2037 ft · 34 sec

  16. 16

    Merge slight left onto North Valley Highway

    21.5 mi · 27 min · North Valley Highway

  17. 17

    Take the exit slight right toward E-470 North, CO 470 West: Limon, Grand Junction

    890 ft · 15 sec

  18. 18

    Keep slight left to continue on E-470 North: Limon

    1.3 km · 2 min

  19. 19

    Merge slight left onto E-470

    2.6 mi · 3 min · E-470

  20. 20

    Take the exit slight right toward Chambers Road

    2129 ft · 51 sec

  21. 21

    Turn right onto South Chambers Road

    1.1 mi · 2 min · South Chambers Road

  22. 22

    Turn left onto East Lincoln Avenue

    1926 ft · 43 sec · East Lincoln Avenue

  23. 23

    Turn right onto Stonegate Parkway

    714 ft · 20 sec · Stonegate Parkway

  24. 24

    Turn left onto Quarry Hill Drive

    603 ft · 33 sec · Quarry Hill Drive

  25. 25

    Turn right onto Lode Stone Way

    890 ft · 39 sec · Lode Stone Way

  26. 26

    Arrive at your destination

    0 m · 1 sec · Lode Stone Way

Car Route Details

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

OSRM road route
Drive Character

Highway-focused drive

Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.

Directions
26 steps
17 turns on the saved route
Ramps & Exits
5
2 merges, 3 ramps or exits
Navigation Density
52.7 / 100 mi
Decision points by distance
Main Roads
North Valley Highway
21.5 mi · 43%
Denver–Boulder Turnpike
19.7 mi · 40%
E-470
2.64 mi · 5%
South Chambers Road
1.1 mi · 2%
E-470 North
0.99 mi · 2%
I 25 south
0.86 mi · 2%
Longest Stretch

North Valley Highway

Merge slight left onto North Valley Highway

21.5 mi · 00h 27m

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 04m
Day trip friendly
Same-Day Return
02h 08m
Round-trip wheel time
Road vs Air
+7.7 mi
41.6 mi direct line
Halfway Stop
Berkley
00h 32m from Boulder
Leave By
4:22 PM MDT
Morning start is best
Weather Watch

Showers And Thunderstorms leaving Boulder and Showers And Thunderstorms near Stonegate.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Boulder to Stonegate?

The road trip is about 49.3 miles (79.4 km) and usually takes 01h 04m 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?

Berkley is a useful midpoint, sitting about 24.7 miles from Boulder and 24.7 miles from Stonegate.

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

The direct path is about 41.6 miles (67 km), while the road route adds roughly 7.7 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 4:22 PM MDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $6.43 one way or $12.87 round trip. Estimated CO2 is about 15.5 kg one way.

What should you check before leaving?

Before you leave, expect Showers And Thunderstorms around Boulder and Showers And Thunderstorms near Stonegate.

Stop Ideas Near Berkley

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 Berkley and the surrounding midpoint area.
Fairplay Park
Scenic stop 9.5 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 2.7 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 11.5 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
Municipal Court Park
Scenic stop 4.4 mi away

Municipal Court Park

Westminster , CO
3025 W 76th Ave, Westminster, CO 80030
Rating 3.8/5 94 reviews Park

Transit and Meeting Points

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

RAIL

Union Station

6 mi away
1701 Wynkoop Street
BUS

Denver (Bus Station), Colorado

7 mi away
1055 19th Street
BUS

Boulder, Colorado

36 mi away
30th & Diagonal Highway
BUS

Longmont, Colorado

41 mi away
623 Main St.

Flight Path Map

This map shows the direct air route between Boulder and Stonegate. Straight-line distance: 41.63 mi (67 km).

Boulder

#1 Boulder

The most populous city in Boulder County, Colorado.

Population107,645
Coordinates40.0149900, -105.2705500
Altitude1624
CountryUnited States
Stonegate

#2 Stonegate

Census-designated place in Douglas County, Colorado

Population8,962
Coordinates39.5308200, -104.8038600
Altitude1791
CountryUnited States
Start: Boulder (-105.27055, 40.01499)
End: Stonegate (-104.80386, 39.53082)

Estimated Travel Time

Distance: 79 km by road

SpeedTime
30 mph (48.3 km/h)01h 38m
40 mph (64.37 km/h)01h 14m
50 mph (80.47 km/h)00h 59m
60 mph (96.56 km/h)00h 49m
70 mph (112.65 km/h)00h 42m
80 mph (129 km/h)00h 36m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
1.74 gal
6.59 L · about $6.43
Round trip
$12.87
3.48 gal · 13.18 L
Estimated CO2
15.5 kg one way
Round trip: 30.9 kg / 68 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.70 $6.43 $12.87
Mid-grade $4.08 $7.11 $14.21
Premium $4.39 $7.64 $15.28
Diesel $4.74 $8.24 $16.48

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 26, 2026

There is no time difference between Boulder and Stonegate. The current time is 05:33:59.

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.