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Trip from Boonsboro, MD to Gwynn Oak, MD

Compiled and reviewed by the Trip.ovh planning team at COD Solutions Oy · Last reviewed Apr 17, 2026 · Editorial standards

Drive Time

1h 14m

Distance

58.5 mi

94 km

Drive Score

8/10

Great drive

Same Day?

Yes, doable

Fuel Cost

$10

one way

EV Charging

Good

8 stations

Best Time to Leave

Save up to 17 min
4 AM
1h 9m ★
6 AM
1h 15m
8 AM
1h 26m
10 AM
1h 19m
12 PM
1h 18m
3 PM
1h 19m
5 PM
1h 26m
8 PM
1h 11m

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

town in Washington County, Maryland, United States

Boonsboro, MD

Wikimedia Commons

Downtown Gwynn Oak, MD, MD

Gwynn Oak, MD

Iqbal farooz

Trip Overview

The drive from Boonsboro, MD to Gwynn Oak, MD covers 58.5 miles and takes about 1h 14m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.

The route leans on I 70, Old National Pike, West Main Street for much of the mileage, and the overall profile is highway-focused drive. The longest uninterrupted segment is about 44 miles on I 70. At current regular gas prices, budget about $9.70 one way before food or hotel costs.

Who Is This Route For?

Weekend Trip

Doable as a same-day drive at 1h 14m. Total distance: 58.5 miles.

Family Friendly

Moderate complexity with 0 natural rest stops along the way.

Solo Traveler

1h 14m drive, comfortable solo distance.

EV Driver

0 DC fast chargers along the route. Coverage: unknown.

First-Time Driver

Mostly highway driving (75%). Some complex stretches to watch for.

Drive Character

This is a 1h 14m highway drive covering 58.5 miles, with most of the trip on I 70 and Old National Pike. The longest continuous stretch is about 44 miles on I 70.

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 70 is the longest continuous segment at about 44 miles.

How Hard Is This Drive?

This is a straightforward highway drive that stays mostly on I 70 and Old National Pike. You will hit about 9 points where you need to pay attention to lane position or signs. The trickiest moment comes early in the drive near US 40 ALT / South Main Street.

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 58.5 miles you will encounter 9 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 (US 40 ALT / South Main Street): Navigation decision point; at 11.6 miles (I 70): Merge point - match speed before joining. Lane positioning matters here; at 44.2 miles (I 70): Highway fork - watch signs carefully. Lane positioning matters here.

Critical Maneuvers

5 of 9 key points

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

4
0 mi into trip | ~0m in | US 40 ALT / South Main Street

Turn right onto US 40 ALT / South Main Street

Navigation decision point

5
11.6 mi into trip | ~18m in | I 70

Merge onto I 70

Merge point - match speed before joining. Lane positioning matters here

Use the straight / slight right lanes.
7
44.2 mi into trip | ~53m in | I 70

Keep slight left at fork onto I 70 toward Baltimore

Highway fork - watch signs carefully. Lane positioning matters here

Use the straight / slight right lanes. Toward Baltimore
7
55.6 mi into trip | ~1h 6m in

Take the exit toward Security Boulevard

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

Use the straight / right lanes. Exit 94 Toward Security Boulevard
5
58.4 mi into trip | ~1h 14m in

Turn left

Navigation decision point

Towns Mentioned on Route Signs

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

On the drive from Boonsboro, MD to Gwynn Oak, MD, road signs begin pointing toward Baltimore along the way.

Baltimore

44.2 mi in | ~53m | via I 70

Main Roads

Road Distance Duration
I 70 44 mi 48m
Old National Pike 8.7 mi 13m
West Main Street 1.8 mi 2m
North Forest Park Avenue 1.4 mi 3m
Hillsdale Road 0.9 mi 2m
South Main Street 0.7 mi 1m
Security Boulevard 0.2 mi <1m
Haddon Avenue <0.1 mi <1m
Longest stretch: I 70 — 44 mi, about 48m

Turn-by-Turn Driving Directions

Step-by-step road directions between Boonsboro, MD and Gwynn Oak, MD.

1

Start on MD 34

120 ft · 6 sec · Potomac Street
2

Turn right onto US 40 ALT

0.7 mi · 1 min · South Main Street
3

Enter roundabout onto US 40 ALT

114 ft · 1 sec · Old National Pike
4

Continue on US 40 ALT

6.1 mi · 9 min · Old National Pike
5

Continue on US 40 ALT

1.8 mi · 2 min · West Main Street
6

Continue on US 40 ALT

2.5 mi · 4 min · Old National Pike
7

Take the ramp

0.4 mi · 48 sec
Toward I 70 East
8

Merge onto I 70

26 mi · 28 min · I 70
Use the straight / slight right lanes.
9

Continue on I 70; US 40

6.5 mi · 6 min · I 70; US 40
Use the straight / slight right lanes.
10

Keep slight left at fork onto I 70

11 mi · 13 min · I 70
Toward Baltimore Use the straight / slight right lanes.
11

Take the exit

0.3 mi · 35 sec
Exit 94 Toward Security Boulevard Use the straight / right lanes.
12

Turn straight onto MD 122

0.2 mi · 22 sec · Security Boulevard
Use the right lane.
13

Turn right onto North Forest Park Avenue

1.4 mi · 3 min · North Forest Park Avenue
14

Turn slight left onto Hillsdale Road

0.9 mi · 2 min · Hillsdale Road
15

Turn right onto Haddon Avenue

178 ft · 11 sec · Haddon Avenue
16

Turn left

60 ft · 4 sec
17

Arrive at destination

Where to Stop

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

Halfway Point

Midpoint

About 29.2 mi from Boonsboro, MD · 37m into the drive

town in Carroll and Frederick Counties, Maryland, United States

Mid-route town

Meal stop

Mount Airy, MD

29 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

Frederick, MD

Fuel and coffee

A short stop after about 13 miles helps settle the day before fatigue starts building.

Mount Airy, MD

Meal break

The midpoint is around 29.2 miles from Boonsboro, MD, which is a good place for a longer meal and fuel stop.

Arriving in Gwynn Oak, MD

The final approach into Gwynn Oak, MD usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.

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

Fuel & Cost

Regular Gas

$9.70 one way

$19.40 round trip

$4.21/gal 25.4 MPG avg 21 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.61 $10.62 $21.24
premium $4.93 $11.35 $22.69
diesel $5.61 $12.92 $25.83

No toll roads detected on this route.

Drive Cost (one way)

Fuel

$10

Estimated CO2 emission: 20.5 kg one way. Prices: EIA weekly data, 2026-04-13.

Driving Electric?

About $6 in charging · 0 stops · 65% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 17.6 0 $6.14 $2.81
Efficient EV 14.6 0 $5.12 $2.34
EV Truck/SUV 23.4 0 $8.19 $3.74

Gas CO2

20 kg

EV CO2

7 kg (65% 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 as of Apr 17, 2026

Origin

Boonsboro, MD

Afternoon in Boonsboro on Friday

Local time

4:38 PM

EDT

Current temp

75°F

Unavailable

Live forecast

Destination

Gwynn Oak, MD

Afternoon in Gwynn Oak on Friday

Local time

4:38 PM

EDT

Current temp

74°F

Unavailable

Live forecast

73°F

Mount Airy, MD

29 mi in

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

1 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

1h 14m 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.

Frequently Asked Questions

The drive from Boonsboro, MD to Gwynn Oak, MD covers 58.5 miles and takes about 1h 14m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.

The main roads are I 70, Old National Pike, West Main Street. Most of the drive stays on highways, so watch for ramps and exits.

This is a comfortable same-day trip.

The midpoint is about 29.2 miles from Boonsboro, MD. Look for rest areas, gas stations, or food options near the halfway mark.

At current regular gas prices, expect to spend about $9.70 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.

This drive requires moderate attention. Across 58.5 miles you will encounter 9 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.

The main spots that need attention: near the start (US 40 ALT / South Main Street): Navigation decision point; at 11.6 miles (I 70): Merge point - match speed before joining. Lane positioning matters here; at 44.2 miles (I 70): Highway fork - watch signs carefully. Lane positioning matters here.

On the drive from Boonsboro, MD to Gwynn Oak, MD, road signs begin pointing toward Baltimore along the way.

Yes. Nearby national parks include Monocacy National Battlefield, Antietam National Battlefield and Harpers Ferry National Historical Park. There are 5 parks within detour distance of this route.

How this page is built

Compiled by the Trip.ovh 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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