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Trip from Perryman, MD to Gaithersburg, MD

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

Drive Time

1h 33m

Distance

71.6 mi

115 km

Drive Score

8/10

Great drive

Same Day?

Yes, doable

Fuel Cost

$12

one way

EV Charging

Unknown

Best Time to Leave

Save up to 22 min
4 AM
1h 26m ★
6 AM
1h 33m
8 AM
1h 48m
10 AM
1h 38m
12 PM
1h 37m
3 PM
1h 39m
5 PM
1h 47m
8 PM
1h 29m

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

Best Time Drive vs Fly
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Downtown Gaithersburg, MD, MD

Gaithersburg, MD

Kristopher Hines

Trip Overview

The drive from Perryman, MD to Gaithersburg, MD covers 71.6 miles and takes about 1h 33m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.

The route leans on Intercounty Connector, I 95, Harbor Tunnel Thruway for much of the mileage, and the overall profile is turn-heavy local drive. The longest uninterrupted segment is about 15.7 miles on Intercounty Connector. At current regular gas prices, budget about $11.87 one way before food or hotel costs.

Trip Pace

Same-day drive is realistic

A same-day return is realistic if you keep stops short.

Midpoint

35.8 miles from Perryman, MD

A natural place for your longest stop of the day , about 48m into the drive .

Who Is This Route For?

Weekend Trip

Doable as a same-day drive at 1h 33m. Total distance: 71.6 miles.

Family Friendly

Moderate complexity with 0 natural rest stops along the way.

Solo Traveler

1h 33m drive, comfortable solo distance.

Scenic Drive

Turn-heavy local drive route profile with national parks nearby.

Drive Character

Expect a 1h 33m drive with frequent turns across 71.6 miles of local and secondary roads.

This route has more turning and local-road decision points than a simple highway run.
There are about 27 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Intercounty Connector is the longest continuous segment at about 15.7 miles.

How Hard Is This Drive?

Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 4.4 miles in.

Driving Effort 10/10

Demanding - stay alert through the decision-heavy sections

Balances navigation complexity with total wheel time.

This drive requires moderate attention. Across 71.6 miles you will encounter 14 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: at 4.4 miles: Lane positioning matters here; at 16.7 miles (Express Toll Lanes): Highway fork - watch signs carefully. Lane positioning matters here; at 23.2 miles (Express Toll Lanes): Highway fork - watch signs carefully. Lane positioning matters here.

Critical Maneuvers

5 of 14 key points

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

6
4.4 mi into trip | ~8m in

Turn left toward I 95 South: Baltimore

Lane positioning matters here

Use the left lane. Toward I 95 South: Baltimore
6
16.7 mi into trip | ~22m in | Express Toll Lanes

Keep slight left at fork onto Express Toll Lanes

Highway fork - watch signs carefully. Lane positioning matters here

Use the slight left lane.
6
23.2 mi into trip | ~30m in | Express Toll Lanes

Keep slight left at fork onto Express Toll Lanes

Highway fork - watch signs carefully. Lane positioning matters here

Use the slight left lane.
7
52.3 mi into trip | ~1h 7m in

Take the exit toward MD 200 Toll West

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

Use the straight / slight right lanes. Exit 31B Toward MD 200 Toll West
8
69.5 mi into trip | ~1h 28m in

Take the exit toward MD 355: Rockville, Gaithersburg

Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one

Use the slight right lane. Exit 2 Toward MD 355: Rockville, Gaithersburg

Main Roads

Road Distance Duration
Intercounty Connector 15.7 mi 19m
I 95 13.6 mi 15m
Harbor Tunnel Thruway 12 mi 15m
John F. Kennedy Memorial Highway 11.9 mi 13m
Express Toll Lanes 7.7 mi 9m
Riverside Parkway 1.8 mi 3m
South Frederick Avenue 1.6 mi 3m
Baltimore Harbor Tunnel 1.4 mi 2m
Longest stretch: Intercounty Connector — 15.7 mi, about 19m

Turn-by-Turn Driving Directions

Step-by-step road directions between Perryman, MD and Gaithersburg, MD.

1

Start on MD 159

0.2 mi · 31 sec · Perryman Road
2

Continue on MD 159

171 ft · 11 sec · Perryman Road
3

Continue on MD 159

0.1 mi · 18 sec · Perryman Road
Use the left lane.
4

Turn left onto Spesutia Road

0.8 mi · 1 min · Spesutia Road
Use the left lane.
5

Turn left onto US 40

0.5 mi · 1 min · South Philadelphia Boulevard
6

Continue on US 40

1.0 mi · 1 min · Pulaski Highway
7

Turn left onto MD 543

1.8 mi · 3 min · Riverside Parkway
8

Turn left

0.4 mi · 57 sec
Toward I 95 South: Baltimore Use the left lane.
9

Merge onto I 95

12 mi · 13 min · John F. Kennedy Memorial Highway
Use the straight / slight right lanes.
10

Keep slight left at fork onto Express Toll Lanes

6.5 mi · 7 min · Express Toll Lanes
Use the slight left lane.
11

Keep slight left at fork onto Express Toll Lanes

1.2 mi · 1 min · Express Toll Lanes
Use the slight left lane.
12

Merge onto I 895

3.8 mi · 5 min · Harbor Tunnel Thruway
13

Continue on I 895

1.4 mi · 2 min · Baltimore Harbor Tunnel
14

Continue on I 895

2.2 mi · 3 min · Harbor Tunnel Thruway
Use the straight / slight right lanes.
15

Continue on I 895

0.5 mi · 39 sec · Harbor Tunnel Throughway
16

Keep slight left at fork onto I 895

0.5 mi · 41 sec · Harbor Tunnel Throughway
Use the straight / slight right lanes.
17

Continue on I 895

6.0 mi · 7 min · Harbor Tunnel Thruway
Use the straight / right lanes.
18

Merge onto I 95

14 mi · 15 min · I 95
Use the straight / slight right lanes.
19

Take the exit

0.9 mi · 1 min
Exit 31B Toward MD 200 Toll West Use the straight / slight right lanes.
20

Merge onto MD 200 Toll

9.5 mi · 11 min · Intercounty Connector
Use the straight / slight right lanes.
21

Continue on MD 200 Toll

6.2 mi · 7 min · Intercounty Connector
Exit 8A
22

Continue on I 370

0.5 mi · 41 sec · I 370
23

Take the exit

0.4 mi · 46 sec
Exit 2 Toward MD 355: Rockville, Gaithersburg Use the slight right lane.
24

Turn right onto MD 355

0.2 mi · 27 sec · Frederick Road
25

Continue on MD 355

1.6 mi · 3 min · South Frederick Avenue
26

Turn left

85 ft · 6 sec
27

Arrive at destination

Trip Plan

Morning Departure

Leave by 9 AM and you'll arrive before lunch.

Evening Departure

Even a 4 PM departure gets you there before dark in summer.

You can normally do this drive in one day.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 35.8 miles from Perryman, MD, or about 48m into the drive.
The longest continuous stretch on this route runs about 15.7 miles.

This is a comfortable same-day trip.

Departure

Before you leave

Start with fuel, water, and navigation already sorted so the first hour feels easy.

First stop

Around 16 miles or 22m in

Use this first pause for coffee, a restroom break, and a quick traffic check ahead.

Halfway reset

Around 35.8 miles or 48m in

This is the best place for your longest stop, a real meal, and a full fuel check.

Final approach

Final hour starts around 1h 18m

Traffic, exits, and arrival timing usually matter more near Gaithersburg, MD than in the middle of the route.

Before You Leave

+

Open the route before leaving Perryman, MD so your first major turns are already loaded.

Day 1

Settle into the route from Perryman, MD

This is one driving day of about 71.6 miles and 1h 33m.

Your first comfortable stop window is around 16 miles from Perryman, MD.
This route can stay practical as a one-day drive if traffic stays reasonable.
The longest stretch is on Intercounty Connector for about 15.7 miles.

Where to Stop

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

Halfway Point

Midpoint

About 35.8 mi from Perryman, MD · 48m into the drive

Mid-route town

Meal stop

Baltimore, MD

36 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

Essex, MD

Fuel and coffee

A short stop after about 16 miles helps settle the day before fatigue starts building.

Glen Burnie, MD

Meal break

The midpoint is around 35.8 miles from Perryman, MD, which is a good place for a longer meal and fuel stop.

Arriving in Gaithersburg, MD

The final approach into Gaithersburg, 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.

National Parks Near This Route

Worth a detour if your schedule allows.

Chesapeake & Ohio Canal National Historical Park

Chesapeake & Ohio Canal National Historical Park

National Historical Park

Preserving America's early transportation history, the C&O Canal began as a dream of passage to Western wealth. Operating for nearly 100 years the canal was a lifeline for communities along the Potoma...

10 mi from route ~25 min detour $20 near mile 69.2
Caution: DC Water Sewer Overflow
Caution: Hiking in Gold Mine Tract
View on nps.gov
Potomac Heritage National Scenic Trail

Potomac Heritage National Scenic Trail

National Scenic Trail

The Potomac River corridor is rich in both history and recreation, offering a chance to both explore your heritage and choose your adventure along the way. Start your journey here!

17 mi from route ~43 min detour Free near mile 71.6
View on nps.gov
Monocacy National Battlefield

Monocacy National Battlefield

National Battlefield

During the summer of 1864, the Confederacy carried out a bold plan to turn the tide of the Civil War in their favor. They planned to capture Washington, DC and influence the election of 1864. On July...

18 mi from route ~46 min detour Free near mile 71.6
View on nps.gov

Park data from the National Park Service API. Alerts update every 2 hours.

Fuel & Cost

Regular Gas

$11.87 one way

$23.74 round trip

$4.21/gal 25.4 MPG avg 25 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.61 $13.00 $26.00
premium $4.93 $13.89 $27.77
diesel $5.61 $15.81 $31.62

Estimated Tolls: $0.84

Harbor Tunnel Thruway (12 mi) $0.84

Toll estimates based on average 2024-2025 rates. EZ-Pass/SunPass discounts may lower the actual cost.

Estimated Trip Cost (one way, 1 person)

Fuel

$12

Tolls

$1

Meals

$25–$50

Total

$38–$63

Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.

Estimated CO2 emission: 25.1 kg one way. Prices: EIA weekly data, 2026-04-13.

Driving Electric?

About $8 in charging · 0 stops · 68% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 21.5 0 $7.52 $3.44
Efficient EV 17.9 0 $6.26 $2.86
EV Truck/SUV 28.6 0 $10.02 $4.58

Gas CO2

25 kg

EV CO2

8 kg (68% 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

Perryman, MD

Late night in Perryman on Friday

Local time

5:30 AM

EDT

Current temp

71°F

Unavailable

Live forecast

Destination

Gaithersburg, MD

Late night in Gaithersburg on Friday

Local time

5:30 AM

EDT

Current temp

73°F

Unavailable

Live forecast

Seasonal Notes

Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.

Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.

Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.

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

2 degrees warmer at arrival

A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.

Road read

1h 33m 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 Perryman, MD to Gaithersburg, MD covers 71.6 miles and takes about 1h 33m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.

The main roads are Intercounty Connector, I 95, Harbor Tunnel Thruway. Expect a mix of highway and local road driving.

This is a comfortable same-day trip.

The midpoint is about 35.8 miles from Perryman, MD. Look for rest areas, gas stations, or food options near the halfway mark.

At current regular gas prices, expect to spend about $11.87 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 71.6 miles you will encounter 14 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: at 4.4 miles: Lane positioning matters here; at 16.7 miles (Express Toll Lanes): Highway fork - watch signs carefully. Lane positioning matters here; at 23.2 miles (Express Toll Lanes): Highway fork - watch signs carefully. Lane positioning matters here.

The route from Perryman, MD to Gaithersburg, MD does not surface many named destination signs beyond the main corridor.

Yes. Nearby national parks include Chesapeake & Ohio Canal National Historical Park, Potomac Heritage National Scenic Trail and Monocacy National Battlefield.

How this page is built

Compiled and maintained by the Trip.ovh planning team at COD Solutions Oy (Helsinki). Each route is built from authoritative open government and mapping datasets rather than crowdsourced reviews. Distances and geometry come from OSRM over OpenStreetMap. Fuel cost uses EIA weekly regional averages. National park proximity is from the NPS API. Pages are published only after passing our data-quality checks; our methodology page documents refresh cadence, editorial standards, and known limitations.

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