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Trip from Sterling, CO to Castle Rock, CO

Data updated 0 seconds ago

Drive Time

2h 45m

Distance

157.8 mi

254 km

Drive Score

9/10

Great drive

Same Day?

Yes, doable

Fuel Cost

$24

one way

EV Charging

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station data

Best Time to Leave

Save up to 33 min
4 AM
2h 34m ★
6 AM
2h 45m
8 AM
3h 7m
10 AM
2h 53m
12 PM
2h 51m
3 PM
2h 54m
5 PM
3h 6m
8 PM
2h 39m

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

Best Time Drive vs Fly
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city in and county seat of Logan County, Colorado, United States

Sterling, CO

Wikimedia Commons

county seat of Douglas County, Colorado, United States

Castle Rock, CO

Wikimedia Commons

Trip Overview

The drive from Sterling, CO to Castle Rock, CO covers 157.8 miles and takes about 2h 45m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.

The route leans on I 76, E-470, I 25 for much of the mileage, and the overall profile is highway-focused drive. The longest uninterrupted segment is about 105.8 miles on I 76. At current regular gas prices, budget about $23.78 one way before food or hotel costs.

Trip Pace

Same-day drive is realistic

A same-day return is realistic if you keep stops short.

Break Rhythm

1 planned break

A short stop every 2 to 3 hours is enough for this drive.

Midpoint

78.9 miles from Sterling, CO

A natural place for your longest stop of the day , about 1h 21m into the drive .

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Drive Character

This is a 2h 45m highway drive covering 157.8 miles, with most of the trip on I 76 and E-470. The longest continuous stretch is about 105.8 miles on I 76.

Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 17 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
I 76 is the longest continuous segment at about 105.8 miles.

How Hard Is This Drive?

This is a straightforward highway drive that stays mostly on I 76 and E-470. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 107.9 miles in.

Route Complexity 7/10

Demanding - plan breaks and stay ahead of the key maneuvers

This is a demanding drive. With 13 significant decision points across 157.8 miles, you will need to stay alert — especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.

Where does it get tricky?

The main spots that need attention: at 107.9 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 144 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 144.2 miles: Highway fork - watch signs carefully. Lane positioning matters here.

Critical Maneuvers

5 of 13 key points

These are the spots where you need to pay the most attention. Preview them before you drive.

7
107.9 mi into trip | ~1h 50m in

Take the exit toward E470 Toll South: Limon

Exit ramp - move to the correct lane early. Lane positioning matters here

Use the straight / slight right lanes. Exit 18 Toward E470 Toll South: Limon
6
144 mi into trip | ~2h 27m in

Take the exit toward I 25: Denver, Colorado Springs

Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one

Exit 1A Toward I 25: Denver, Colorado Springs
8
144.2 mi into trip | ~2h 28m in

Keep slight left at fork toward I 25 South: Colorado Springs

Highway fork - watch signs carefully. Lane positioning matters here

Use the straight / slight left lanes. Exit 1A Toward I 25 South: Colorado Springs
8
156.7 mi into trip | ~2h 41m in

Take the exit toward Wilcox Street, Wolfensberger Road

Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one

Use the straight / slight right lanes. Exit 182 Toward Wilcox Street, Wolfensberger Road
6
157.4 mi into trip | ~2h 44m in | 5th Street

Turn left onto 5th Street

Lane positioning matters here

Use the left lane.

Towns Mentioned on Route Signs

Based on OSRM destination-sign hints, not a full list of every settlement the road passes.

Between Sterling, CO and Castle Rock, CO, road signs point toward E470 Toll South: Limon and Colorado Springs.

E470 Toll South: Limon

107.9 mi in | ~1h 50m

Colorado Springs

144 mi in | ~2h 27m

Main Roads

Road Distance Duration
I 76 105.8 mi 1h 45m
E-470 35.1 mi 35m
I 25 11.7 mi 12m
East Chestnut Street 1.4 mi 2m
North Wilcox Street 0.4 mi 1m
US Highway 6 0.2 mi <1m
5th Street 0.2 mi <1m
North Cantril Street 0.2 mi <1m
Longest stretch: I 76 — 105.8 mi, about 1h 45m

Turn-by-Turn Driving Directions

Step-by-step road directions between Sterling, CO and Castle Rock, CO.

1

Start on this road

240 ft · 22 sec · this road
2

Turn left onto North 3rd Street

277 ft · 11 sec · North 3rd Street
3

Turn right onto US 6

1.4 mi · 2 min · East Chestnut Street
4

Continue on US 6

0.2 mi · 23 sec · US Highway 6
5

Take the ramp

0.3 mi · 43 sec
Toward I 76 West
6

Merge onto I 76

106 mi · 1 hr 45 min · I 76
Use the straight / slight right lanes.
7

Take the exit

1.0 mi · 2 min
Exit 18 Toward E470 Toll South: Limon Use the straight / slight right lanes.
8

Merge onto E470

35 mi · 35 min · E-470
Use the straight / slight right lanes.
9

Take the exit

0.2 mi · 26 sec
Exit 1A Toward I 25: Denver, Colorado Springs
10

Keep slight left at fork

0.7 mi · 1 min
Exit 1A Toward I 25 South: Colorado Springs Use the straight / slight left lanes.
11

Merge onto I 25

12 mi · 12 min · I 25
Use the straight / slight right lanes.
12

Take the exit

0.2 mi · 31 sec
Exit 182 Toward Wilcox Street, Wolfensberger Road Use the straight / slight right lanes.
13

Turn left onto East Wolfensberger Road

432 ft · 20 sec · East Wolfensberger Road
Use the left / straight / right lanes.
14

Continue on North Wilcox Street

0.4 mi · 1 min · North Wilcox Street
15

Turn left onto 5th Street

0.2 mi · 37 sec · 5th Street
Use the left lane.
16

Turn right onto North Cantril Street

0.2 mi · 28 sec · North Cantril Street
17

Arrive at destination

North Cantril Street

Trip Plan

Morning Departure

Leave by 9 AM and you'll arrive before lunch.

Evening Departure

Even a 4 PM departure gets you there before dark in summer.

You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 78.9 miles from Sterling, CO, or about 1h 21m into the drive.
The longest continuous stretch on this route runs about 105.8 miles.

This is a comfortable same-day trip.

Departure

Before you leave

Start with fuel, water, and navigation already sorted so the first hour feels easy.

First stop

Around 80 miles or 1h 22m in

Use this first pause for coffee, a restroom break, and a quick traffic check ahead.

Halfway reset

Around 78.9 miles or 1h 21m in

This is the best place for your longest stop, a real meal, and a full fuel check.

Final approach

Final hour starts around 2h 12m

Traffic, exits, and arrival timing usually matter more near Castle Rock, CO than in the middle of the route.

Before You Leave

+

Open the route before leaving Sterling, CO so your first major turns are already loaded.

+

Leave with enough water and a charging cable within reach, not packed away.

+

Check your fuel range against the first long segment, especially if you are starting outside city service areas.

Day 1

Settle into the route from Sterling, CO

This is one driving day of about 157.8 miles and 2h 45m.

Your first comfortable stop window is around 80 miles from Sterling, CO.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on I 76 for about 105.8 miles.

Where to Stop

Rest stops, refuel points, and overnight suggestions along this route.

Halfway Point

Midpoint

About 78.9 mi from Sterling, CO · 1h 21m into the drive

Downtown Aurora, CO, CO

Mid-route town

Meal stop

Aurora, CO

79 mi into the route

Best for: Lunch, fuel, and a longer reset

This sits close to the middle of the route, so it works well for the longest stop of the day.

Pacing Suggestions

Lochbuie, CO

Fuel and coffee

A short stop after about 80 miles helps settle the day before fatigue starts building.

Lochbuie, CO

Meal break

The midpoint is around 78.9 miles from Sterling, CO, which is a good place for a longer meal and fuel stop.

Before the longest stretch

Fuel check

Top up before I 76 if your tank is already low. That segment runs about 105.8 miles.

Arriving in Castle Rock, CO

The final approach into Castle Rock, CO usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.

Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Castle Rock, CO.

After long uninterrupted mileage, take five minutes before the last urban segment to reset and refocus on exits, merges, and city traffic.

These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.

Fuel & Cost

Regular Gas

$23.78 one way

$47.55 round trip

$3.83/gal 25.4 MPG avg 55 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.05 $25.17 $50.35
premium $4.39 $27.30 $54.60
diesel $5.61 $34.84 $69.68

Estimated Tolls: $4.22

E-470 (35.1 mi) $4.22

Toll estimates based on average 2024-2025 rates. EZ-Pass/SunPass discounts may lower the actual cost.

Estimated Trip Cost (one way, 1 person)

Fuel

$24

Tolls

$4

Meals

$25–$50

Total

$53–$78

Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.

Estimated CO2 emission: 55.2 kg one way. Prices: EIA weekly data, 2026-04-13.

Driving Electric?

About $17 in charging · 0 stops · 67% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 47.3 0 $16.57 $7.57
Efficient EV 39.5 0 $13.81 $6.31
EV Truck/SUV 63.1 0 $22.09 $10.10

Gas CO2

55 kg

EV CO2

18 kg (67% less)

This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.

DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.

Travel Intel

Current conditions at both ends of the drive.

Forecast data refreshed 1 day ago

Origin

Sterling, CO

Late night in Sterling on Wednesday

Local time

4:29 AM

MDT

Current temp

42°F

Mostly Cloudy

N 8 mph 4% chance Live forecast

Freeze Watch

Freeze Watch issued April 13 at 10:28PM MDT until April 15 at 9:00AM MDT by NWS Grand Junction CO

Red Flag Warning

Red Flag Warning issued April 13 at 9:04PM MDT until April 14 at 8:00PM MDT by NWS Goodland KS

Destination

Castle Rock, CO

Late night in Castle Rock on Wednesday

Local time

4:29 AM

MDT

Current temp

39°F

Mostly Cloudy

SSW 3 to 14 mph 9% chance Live forecast

Freeze Watch

Freeze Watch issued April 13 at 10:28PM MDT until April 15 at 9:00AM MDT by NWS Grand Junction CO

Red Flag Warning

Red Flag Warning issued April 13 at 9:04PM MDT until April 14 at 8:00PM MDT by NWS Goodland KS

Seasonal Notes

Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.

Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.

Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.

Time zone

Same local time

Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.

Temperature spread

3 degrees cooler at arrival

A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.

Road read

2h 45m on the road

The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.

Weather data from the National Weather Service. Conditions may change; check closer to your travel date.

Frequently Asked Questions

The drive from Sterling, CO to Castle Rock, CO covers 157.8 miles and takes about 2h 45m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 76, E-470, I 25. Most of the drive stays on highways, so watch for ramps and exits.
This is a comfortable same-day trip.
The midpoint is about 78.9 miles from Sterling, CO. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $23.78 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.
Plan about 1 meaningful break for fuel, food, or rest. A short stop every 2 to 3 hours is enough for this drive.
This is a demanding drive. With 13 significant decision points across 157.8 miles, you will need to stay alert — especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
The main spots that need attention: at 107.9 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 144 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 144.2 miles: Highway fork - watch signs carefully. Lane positioning matters here.
Between Sterling, CO and Castle Rock, CO, road signs point toward E470 Toll South: Limon and Colorado Springs.

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