How far is Catonsville, MD from Boonsboro, MD?
The driving distance from Catonsville, MD to Boonsboro, MD is about 57 miles (91.7 km), with a travel time of about 01h 10m by car.
- The straight-line flight distance is about 51.8 miles (83.3 km).
- For a round trip, plan for roughly 02h 21m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 01h 10m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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.
City in Surry County, North Carolina, 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 Catonsville and Boonsboro.
Turn-by-Turn Driving Directions
Step-by-step road directions between Catonsville and Boonsboro.
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1
Start on the route
11 m · 8 sec
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2
Turn left onto Frederick Road
2417 ft · 1 min · Frederick Road
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3
Take the ramp sharp left toward I 695 North
999 ft · 25 sec
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4
Merge slight left onto Baltimore Beltway
2 mi · 3 min · Baltimore Beltway
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5
Take the exit slight right toward I 70: Frederick, Local Traffic
951 ft · 23 sec
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6
Keep slight left to continue on I 70 West: Frederick
1.3 km · 2 min
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7
Merge slight left
14.1 mi · 15 min
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8
Continue straight
11.8 mi · 13 min
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9
Continue straight
15.7 mi · 17 min
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10
Take the exit slight right toward US 40 Alternate: Braddock Heights, Middletown
1501 ft · 41 sec
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11
Turn straight onto Old National Pike
2.7 mi · 5 min · Old National Pike
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12
Continue on East Main Street
1.8 mi · 3 min · East Main Street
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13
Continue on Old National Pike
6.1 mi · 9 min · Old National Pike
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14
Enter the roundabout and take exit 2 toward South Main Street
35 m · 2 sec · South Main Street
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15
Exit the roundabout onto South Main Street
1.2 km · 1 min · South Main Street
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16
Turn left onto Potomac Street
37 m · 2 sec · Potomac Street
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17
Arrive at your destination
0 m · 1 sec · Potomac Street
Car Route Details
A richer read on the saved driving route between Catonsville and Boonsboro.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 70 West
Continue straight
15.7 mi · 00h 17m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Sunny leaving Catonsville and Sunny near Boonsboro.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Catonsville to Boonsboro?
The road trip is about 57 miles (91.7 km) and usually takes 01h 10m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Mount Airy is a useful midpoint, sitting about 28.5 miles from Catonsville and 28.5 miles from Boonsboro.
How much longer is the road route than the straight-line distance?
The direct path is about 51.8 miles (83.3 km), while the road route adds roughly 5.2 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 4:08 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $8.21 one way or $16.43 round trip. Estimated CO2 is about 17.9 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Catonsville and Sunny near Boonsboro.
Stop Ideas Near Mount Airy
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Mount Airy.
Frederick Airport, MD
Frederick, MD
Rockville station
BWI Rail Station
Flight Path Map
This map shows the direct air route between Catonsville and Boonsboro. Straight-line distance: 51.75 mi (83.29 km).
#1 Catonsville
A city in Baltimore County, Maryland.
| Population | 41,567 |
| Coordinates | 39.2720500, -76.7319200 |
| Altitude | 146 |
| Country | United States |
#2 Boonsboro
Town in Washington County, Maryland, United States
| Population | 3,455 |
| Coordinates | 39.5062100, -77.6524900 |
| Altitude | 165 |
| Country | United States |
End: Boonsboro (-77.65249, 39.50621)
Estimated Travel Time
Distance: 92 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 53m |
| 40 mph (64.37 km/h) | 01h 25m |
| 50 mph (80.47 km/h) | 01h 08m |
| 60 mph (96.56 km/h) | 00h 56m |
| 70 mph (112.65 km/h) | 00h 48m |
| 80 mph (129 km/h) | 00h 42m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $8.21 | $16.43 |
| Mid-grade | $4.60 | $9.24 | $18.49 |
| Premium | $4.95 | $9.96 | $19.92 |
| Diesel | $5.98 | $12.02 | $24.04 |
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 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.