How far is Derby, CO from Boulder, CO?
The driving distance from Derby, CO to Boulder, CO is about 25.7 miles (41.3 km), with a travel time of about 00h 32m by car.
- The straight-line flight distance is about 22.2 miles (35.8 km).
- For a round trip, plan for roughly 01h 05m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM MDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 32m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
A city in Broomfield County, Colorado.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Light Rain Likely
Rain Showers Likely
Driving Route Map
The map below follows the saved road route between Derby and Boulder.
Turn-by-Turn Driving Directions
Step-by-step road directions between Derby and Boulder.
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1
Start on Kimberly Street
1385 ft · 1 min · Kimberly Street
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2
At the end of the road, turn right onto East 77th Avenue
926 ft · 27 sec · East 77th Avenue
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3
Turn left onto North Vasquez Boulevard
2067 ft · 37 sec · North Vasquez Boulevard
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4
Turn right onto East 74th Avenue
1.1 mi · 2 min · East 74th Avenue
-
5
Take the ramp sharp left toward I 76 West: Denver
2004 ft · 51 sec
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6
Merge slight left onto Heartland Expressway
1.1 km · 49 sec · Heartland Expressway
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7
Take the exit slight right toward I 270: Limon, Boulder
584 ft · 11 sec
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8
Keep slight right to continue on I 270 West: Fort Collins, Boulder
2183 ft · 41 sec
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9
Merge slight left onto Dwight D. Eisenhower Highway
2721 ft · 42 sec · Dwight D. Eisenhower Highway
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10
Continue on Denver–Boulder Turnpike
2.4 mi · 3 min · Denver–Boulder Turnpike
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11
Keep slight right to continue on Denver–Boulder Turnpike
1.7 mi · 2 min · Denver–Boulder Turnpike
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12
Keep slight right to continue on Denver–Boulder Turnpike
2.3 mi · 3 min · Denver–Boulder Turnpike
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13
Keep slight right to continue on Denver–Boulder Turnpike
1.9 mi · 2 min · Denver–Boulder Turnpike
-
14
Keep slight right to continue on Denver–Boulder Turnpike
2.1 mi · 2 min · Denver–Boulder Turnpike
-
15
Keep slight right to continue on Denver–Boulder Turnpike
2.9 mi · 3 min · Denver–Boulder Turnpike
-
16
Keep slight right to continue on Denver–Boulder Turnpike
2.4 mi · 3 min · Denver–Boulder Turnpike
-
17
Keep slight right to continue on Denver–Boulder Turnpike
2.2 mi · 3 min · Denver–Boulder Turnpike
-
18
Keep slight left to continue on Denver–Boulder Turnpike
2.3 mi · 3 min · Denver–Boulder Turnpike
-
19
Continue on 28th Street
1.2 km · 2 min · 28th Street
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20
Turn left onto Arapahoe Avenue
1 km · 2 min · Arapahoe Avenue
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21
Turn right onto 19th Street
44 m · 11 sec · 19th Street
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22
Turn left
27 m · 5 sec
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23
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Derby and Boulder.
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.
Denver–Boulder Turnpike
Keep slight right to continue on Denver–Boulder Turnpike
2.89 mi · 00h 03m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Light Rain Likely leaving Derby and Rain Showers Likely near Boulder.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Derby to Boulder?
The road trip is about 25.7 miles (41.3 km) and usually takes 00h 32m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Broomfield is a useful midpoint, sitting about 12.8 miles from Derby and 12.9 miles from Boulder.
How much longer is the road route than the straight-line distance?
The direct path is about 22.2 miles (35.8 km), while the road route adds roughly 3.5 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 7:00 AM to 7:00 PM MDT. If you want a more comfortable same-day return, try to leave by 7:24 PM MDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.94 one way or $7.87 round trip. Estimated CO2 is about 8.1 kg one way.
What should you check before leaving?
Before you leave, expect Light Rain Likely around Derby and Rain Showers Likely near Boulder.
Stop Ideas Near Broomfield
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Municipal Court Park
Denver City Council
Lafayette City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Broomfield.
Union Station
Denver (Bus Station), Colorado
Boulder, Colorado
Longmont, Colorado
Flight Path Map
This map shows the direct air route between Derby and Boulder. Straight-line distance: 22.25 mi (35.8 km).
#1 Derby
Located at an elevation of 5,128 feet within Adams County, this community forms a significant part of the Commerce City area northeast of Denver.
| Population | 0 |
| Coordinates | 39.8394300, -104.9185900 |
| Altitude | 1563 |
| Country | United States |
#2 Boulder
The most populous city in Boulder County, Colorado.
| Population | 107,645 |
| Coordinates | 40.0149900, -105.2705500 |
| Altitude | 1624 |
| Country | United States |
End: (-105.27055, 40.014996)
Estimated Travel Time
Distance: 41 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 51m |
| 40 mph (64.37 km/h) | 00h 38m |
| 50 mph (80.47 km/h) | 00h 30m |
| 60 mph (96.56 km/h) | 00h 25m |
| 70 mph (112.65 km/h) | 00h 22m |
| 80 mph (129 km/h) | 00h 19m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.33 | $3.94 | $7.87 |
| Mid-grade | $4.72 | $4.29 | $8.59 |
| Premium | $5.06 | $4.61 | $9.21 |
| Diesel | $6.52 | $5.93 | $11.86 |
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 · Oct 15, 2026