Origin
Catonsville, MD
Late night in Catonsville on Sunday
Local time
12:37 AM
EDT
Current temp
72°F
Unavailable
Live forecast
Trip from Catonsville, MD to Greenbelt, MD
Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 2026 · Editorial standards
Drive Time
36m
Distance
24.2 mi
39 km
Drive Score
6/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$4
one way
EV Charging
Unknown
Best Time to Leave
4 AM
0h 33m
★
6 AM
0h 36m
8 AM
0h 43m
10 AM
0h 39m
12 PM
0h 38m
3 PM
0h 39m
5 PM
0h 42m
8 PM
0h 35m
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Catonsville, MD
Wikimedia Commons
Greenbelt, MD
Wikimedia Commons
Trip Overview
Catonsville, MD to Greenbelt, MD is 24.2 miles and takes about 36m via Baltimore-Washington Parkway, with a fuel budget near $4 and enough daylight to finish in a day. This short trip stays within Maryland, making it an easy option for local travel or a quick connection between two points in the Northeast region. Given its minimal distance and duration, this route is ideal for a same-day excursion or a simple commute. Plan for a straightforward drive that gets you to your destination without significant time commitment.
Main Roads
| Road | Distance | Duration |
|---|---|---|
| Baltimore-Washington Parkway | 17.2 mi | 23m |
| MD 166 | 3.3 mi | 3m |
| South Rolling Road | 1.2 mi | 2m |
| Bloomsbury Avenue | 0.9 mi | 2m |
| Crescent Road | 0.4 mi | <1m |
| Southway | 0.3 mi | <1m |
| Frederick Road | <0.1 mi | <1m |
Longest stretch:
Baltimore-Washington Parkway
— 17.2 mi, about 23m
Turn-by-Turn Driving Directions
Step-by-step road directions between Catonsville, MD and Greenbelt, MD.
1
Start on this road
37 ft
·
8 sec
·
this road
2
Turn left onto MD 144
153 ft
·
8 sec
·
Frederick Road
3
Turn right onto Bloomsbury Avenue
0.9 mi
·
2 min
·
Bloomsbury Avenue
4
At end of road, turn left onto MD 166
0.9 mi
·
2 min
·
South Rolling Road
5
Continue on MD 166
0.3 mi
·
39 sec
·
South Rolling Road
Use the straight lane.
6
Turn left onto MD 166
3.3 mi
·
3 min
·
MD 166
Toward I 195 East
Use the left lane.
7
Take the exit
0.6 mi
·
1 min
Exit 2B
Toward MD 295 South: Washington
Use the straight / slight right lanes.
8
Merge onto MD 295
17 mi
·
23 min
·
Baltimore-Washington Parkway
Use the straight / slight right lanes.
9
Take the exit
0.2 mi
·
26 sec
Toward MD 193: Greenbelt, NASA Goddard, U.S. Park Police
Use the slight right lane.
10
Turn right onto MD 193-A
0.3 mi
·
53 sec
·
Southway
11
Turn right onto Crescent Road
0.4 mi
·
58 sec
·
Crescent Road
12
Arrive at destination
Crescent Road
Heads-up: tricky spots
5 of 85 decision points cluster between mile 0 and 23.3 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
0 mi into trip
|
~0m in
|
MD 144 / Frederick Road
Turn left onto MD 144 / Frederick Road
Navigation decision point
6
2.2 mi into trip
|
~5m in
|
MD 166
Turn left onto MD 166 toward I 195 East
Lane positioning matters here
Use the left lane.
Toward I 195 East
7
5.5 mi into trip
|
~9m in
Take the exit toward MD 295 South: Washington
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight / slight right lanes.
Exit 2B
Toward MD 295 South: Washington
5
6.1 mi into trip
|
~10m in
|
MD 295 / Baltimore-Washington Parkway
Merge onto MD 295 / Baltimore-Washington Parkway
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
7
23.3 mi into trip
|
~34m in
Take the exit toward MD 193: Greenbelt, NASA Goddard, U.S. Park Police
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Toward MD 193: Greenbelt, NASA Goddard, U.S. Pa...
Fuel & Cost
Regular Gas
$4.01 one way
$8.02 round trip
$4.21/gal
25.4 MPG avg
9 kg CO2
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.61 | $4.39 | $8.79 |
| premium | $4.93 | $4.69 | $9.39 |
| diesel | $5.61 | $5.34 | $10.69 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$4
Estimated CO2 emission: 8.5 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $3 in charging · 0 stops · 63% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 7.3 | 0 | $2.54 | $1.16 |
| Efficient EV | 6.1 | 0 | $2.12 | $0.97 |
| EV Truck/SUV | 9.7 | 0 | $3.39 | $1.55 |
Gas CO2
8 kg
EV CO2
3 kg (63% 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.
Destination
Greenbelt, MD
Late night in Greenbelt on Sunday
Local time
12:37 AM
EDT
Current temp
69°F
Unavailable
Live forecast
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
36m on the road
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
What kind of drive is this?
This drive is predominantly highway, with 85% of the 24.2 miles on roads like the Baltimore-Washington Parkway. You'll experience about 17.2 miles on the parkway before transitioning to surface roads like South Rolling Road (MD 166). Expect a relatively smooth ride with fewer exits on the parkway portion, giving way to more local traffic as you get closer to Greenbelt.
85% highway — fuel and pacing are the main things to plan.
12 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 17.2 mi on Baltimore-Washington Parkway.
How Hard Is This Drive?
5/10
This is a straightforward highway drive that stays mostly on Baltimore-Washington Parkway and MD 166. You will hit about 8 points where you need to pay attention to lane position or signs. The trickiest moment comes early in the drive near MD 144 / Frederick Road.
Driving Effort
5/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 24.2 miles you will encounter 8 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: near the start (MD 144 / Frederick Road): Navigation decision point; at 2.2 miles (MD 166): Lane positioning matters here; at 5.5 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 36m. Total distance: 24.2 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
36m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (85%). Some complex stretches to watch for.
Frequently Asked Questions
The longest stretch is about 17.2 miles on Baltimore-Washington Parkway. The full list of main roads is in the Roads section above.
Yes. At under 2 hours behind the wheel, this works well for families — plan one quick stop if you have younger kids.
The main spots that need attention: near the start (MD 144 / Frederick Road): Navigation decision point; at 2.2 miles (MD 166): Lane positioning matters here; at 5.5 miles: Exit ramp - move to the correct lane early. Lane positioning matters here.
Yes — Chesapeake & Ohio Canal National Historical Park. See the National Parks section for detour distances and tips on detours.
Yes. A round trip is manageable in a single day if you plan a break at Greenbelt, MD before heading back.
How this page is built
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, and NPS for national parks. See our methodology for refresh cadence and limitations.
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