How far is Chillum, MD from Rockville, MD?
The driving distance from Chillum, MD to Rockville, MD is about 17.2 miles (27.7 km), with a travel time of about 00h 30m by car.
- The straight-line flight distance is about 12.1 miles (19.4 km).
- For a round trip, plan for roughly 01h 00m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM EDT.
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 30m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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.
Village in Montgomery County, Maryland, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Sunny
Driving Route Map
The map below follows the saved road route between Chillum and Rockville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Chillum and Rockville.
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1
Start on Riggs Road
2010 ft · 40 sec · Riggs Road
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2
Turn right onto Eastern Avenue Northeast
1.3 mi · 3 min · Eastern Avenue Northeast
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3
Continue on Carroll Street Northwest
660 ft · 26 sec · Carroll Street Northwest
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4
Continue on Cedar Street Northwest
588 ft · 22 sec · Cedar Street Northwest
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5
Turn slight right onto Blair Road Northwest
1.4 km · 2 min · Blair Road Northwest
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6
Turn right onto Georgia Avenue
2.2 mi · 5 min · Georgia Avenue
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7
Take the ramp slight right toward I 495 West: Northern Virginia
624 ft · 15 sec
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8
Merge slight left onto Capital Beltway
3.9 mi · 5 min · Capital Beltway
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9
Keep slight right to continue on I 270 North: Frederick
3.6 mi · 5 min
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10
Keep slight right to continue on I 270 North
1.8 mi · 2 min
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11
Take the exit slight right toward MD 189: Falls Road
753 ft · 18 sec
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12
Keep slight right to continue on MD 189 North: Falls Road, Rockville, Town Center
567 ft · 14 sec
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13
Turn straight onto Falls Road
132 m · 21 sec · Falls Road
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14
Turn left onto Great Falls Road
1.1 km · 2 min · Great Falls Road
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15
Continue on West Montgomery Avenue
1159 ft · 38 sec · West Montgomery Avenue
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16
Turn right onto South Washington Street
19 m · 2 sec · South Washington Street
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17
Arrive at your destination
0 m · 1 sec · South Washington Street
Car Route Details
A richer read on the saved driving route between Chillum and Rockville.
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.
Capital Beltway
Merge slight left onto Capital Beltway
3.9 mi · 00h 05m
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.
Sunny leaving Chillum and Sunny near Rockville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Chillum to Rockville?
The road trip is about 17.2 miles (27.7 km) and usually takes 00h 30m 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?
North Chevy Chase is a useful midpoint, sitting about 7.8 miles from Chillum and 9.4 miles from Rockville.
How much longer is the road route than the straight-line distance?
The direct path is about 12.1 miles (19.4 km), while the road route adds roughly 5.1 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 EDT. If you want a more comfortable same-day return, try to leave by 7:30 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $2.49 one way or $4.98 round trip. Estimated CO2 is about 5.4 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Chillum and Sunny near Rockville.
Stop Ideas Near North Chevy Chase
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
United States Capitol
D C Government
THEARC: Town Hall Education Arts Recreation Campus
Town Hall Liquor And Bar
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to North Chevy Chase.
Rockville station
Washington Union Station
New Carrollton station
Union Station
Flight Path Map
This map shows the direct air route between Chillum and Rockville. Straight-line distance: 12.02 mi (19.35 km).
#1 Chillum
Census designated place in Prince George's County, Maryland, United States
| Population | 33,513 |
| Coordinates | 38.9637200, -76.9908100 |
| Altitude | 45 |
| Country | United States |
#2 Rockville
The most populous city in Montgomery County, Maryland.
| Population | 69,512 |
| Coordinates | 39.0840000, -77.1527600 |
| Altitude | 137 |
| Country | United States |
End: South Washington Street (-77.152887, 39.083997)
Estimated Travel Time
Distance: 28 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 34m |
| 40 mph (64.37 km/h) | 00h 25m |
| 50 mph (80.47 km/h) | 00h 20m |
| 60 mph (96.56 km/h) | 00h 17m |
| 70 mph (112.65 km/h) | 00h 14m |
| 80 mph (129 km/h) | 00h 12m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $2.49 | $4.98 |
| Mid-grade | $4.60 | $2.81 | $5.61 |
| Premium | $4.95 | $3.02 | $6.04 |
| Diesel | $5.98 | $3.65 | $7.30 |
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 Maryland · May 05, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.