How far is Catonsville, MD from Adelphi, MD?
The driving distance from Catonsville, MD to Adelphi, MD is about 25.5 miles (41 km), with a travel time of about 00h 35m by car.
- The straight-line flight distance is about 22.6 miles (36.4 km).
- For a round trip, plan for roughly 01h 11m 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 35m.
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.
Census-designated place in Howard County, Maryland, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Driving Route Map
The map below follows the saved road route between Catonsville and Adelphi.
Turn-by-Turn Driving Directions
Step-by-step road directions between Catonsville and Adelphi.
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1
Start on the route
11 m · 8 sec
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2
Turn left onto Frederick Road
47 m · 9 sec · Frederick Road
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3
Turn right onto Bloomsbury Avenue
1.5 km · 2 min · Bloomsbury Avenue
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4
At the end of the road, turn left onto South Rolling Road
1.4 km · 2 min · South Rolling Road
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5
Continue on South Rolling Road
1657 ft · 39 sec · South Rolling Road
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6
Turn left onto I 195 East
1.2 km · 47 sec
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7
Take the exit slight right toward I 95 South: Washington
2757 ft · 1 min
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8
Merge slight left
17.2 mi · 20 min
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9
Take the exit slight right toward MD 212 West: Calverton
3254 ft · 43 sec
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10
Turn straight onto Powder Mill Road
2.4 mi · 4 min · Powder Mill Road
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11
Turn straight onto Riggs Road
1.8 mi · 3 min · Riggs Road
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12
Arrive at your destination
0 m · 1 sec · Riggs Road
Car Route Details
A richer read on the saved driving route between Catonsville and Adelphi.
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.
I 95 South
Merge slight left
17.2 mi · 00h 20m
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 Catonsville and Sunny near Adelphi.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Catonsville to Adelphi?
The road trip is about 25.5 miles (41 km) and usually takes 00h 35m 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 Laurel is a useful midpoint, sitting about 12.7 miles from Catonsville and 12.7 miles from Adelphi.
How much longer is the road route than the straight-line distance?
The direct path is about 22.6 miles (36.4 km), while the road route adds roughly 2.9 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 7:18 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.68 one way or $7.35 round trip. Estimated CO2 is about 8 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Catonsville and Sunny near Adelphi.
Stop Ideas Near North Laurel
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City of Bowie
Riverdale Park Town Hall
Town Hall Liquor And Bar
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to North Laurel.
BWI Rail Station
New Carrollton station
Rockville station
Washington Union Station
Flight Path Map
This map shows the direct air route between Catonsville and Adelphi. Straight-line distance: 22.59 mi (36.36 km).
#1 Catonsville
A city in Baltimore County, Maryland.
| Population | 41,567 |
| Coordinates | 39.2720500, -76.7319200 |
| Altitude | 146 |
| Country | United States |
#2 Adelphi
Census designated place in Prince George's County, Maryland, United States
| Population | 15,086 |
| Coordinates | 39.0031700, -76.9719200 |
| Altitude | 52 |
| Country | United States |
End: Adelphi (-76.97192, 39.00317)
Estimated Travel Time
Distance: 41 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 50m |
| 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 21m |
| 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 | $4.09 | $3.68 | $7.35 |
| Mid-grade | $4.60 | $4.14 | $8.28 |
| Premium | $4.95 | $4.46 | $8.92 |
| Diesel | $5.98 | $5.38 | $10.76 |
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 · Apr 11, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.