How far is Gaithersburg, MD from Ilchester, MD?
The driving distance from Gaithersburg, MD to Ilchester, MD is about 37 miles (59.6 km), with a travel time of about 00h 53m by car.
- The straight-line flight distance is about 24.5 miles (39.5 km).
- For a round trip, plan for roughly 01h 47m 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 00h 53m.
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.
Unincorporated area in Montgomery and Prince George's County, Maryland, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Patchy Fog then Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Gaithersburg and Ilchester.
Turn-by-Turn Driving Directions
Step-by-step road directions between Gaithersburg and Ilchester.
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1
Start on the route
26 m · 8 sec
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2
Turn right onto North Frederick Avenue
993 ft · 17 sec · North Frederick Avenue
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3
Continue on South Frederick Avenue
1.4 mi · 2 min · South Frederick Avenue
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4
Continue on Frederick Road
1906 ft · 43 sec · Frederick Road
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5
Turn left onto Shady Grove Road
1.1 mi · 3 min · Shady Grove Road
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6
Turn left onto MD 200 Toll East
2888 ft · 1 min
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7
Merge slight left onto Intercounty Connector
15.9 mi · 20 min · Intercounty Connector
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8
Take the exit slight right toward I 95: Laurel, Burtonsville
2257 ft · 51 sec
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9
Keep slight left to continue on MD 198: Konterra Drive
2986 ft · 39 sec
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10
Keep slight left to continue on MD 198: Laurel, Burtonsville
1.5 km · 1 min
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11
Keep slight left to continue on MD 198 West: Burtonsville
2970 ft · 39 sec
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12
Keep slight left
1.2 km · 50 sec
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13
Merge slight left
8.9 mi · 10 min
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14
Take the exit slight right toward MD 100 West: Ellicott City
1649 ft · 47 sec
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15
Merge slight left
1 mi · 1 min
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16
Take the exit slight right toward MD 103: Meadowridge Road
795 ft · 19 sec
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17
Keep slight left to continue on MD 103 East
68 m · 5 sec
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18
Enter the roundabout and take exit 1 toward Meadowridge Road
5 m · 1 sec · Meadowridge Road
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19
Exit the roundabout onto Meadowridge Road
1786 ft · 40 sec · Meadowridge Road
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20
Continue on Montgomery Road
1 mi · 2 min · Montgomery Road
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21
Turn right onto Ilchester Road
2.4 mi · 6 min · Ilchester Road
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22
Turn slight left
104 m · 38 sec
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23
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Gaithersburg and Ilchester.
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.
Intercounty Connector
Merge slight left onto Intercounty Connector
15.9 mi · 00h 20m
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.
Cloudy leaving Gaithersburg and Patchy Fog then Chance Showers And Thunderstorms near Ilchester.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Gaithersburg to Ilchester?
The road trip is about 37 miles (59.6 km) and usually takes 00h 53m 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?
Calverton is a useful midpoint, sitting about 18.5 miles from Gaithersburg and 18.5 miles from Ilchester.
How much longer is the road route than the straight-line distance?
The direct path is about 24.5 miles (39.5 km), while the road route adds roughly 12.5 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 4:42 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.55 one way or $11.11 round trip. Estimated CO2 is about 11.6 kg one way.
What should you check before leaving?
Before you leave, expect Cloudy around Gaithersburg and Patchy Fog then Chance Showers And Thunderstorms near Ilchester.
Stop Ideas Near Calverton
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
United States Capitol
D C Government
The John Wilson Building
Town Hall Liquor And Bar
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Calverton.
New Carrollton station
Rockville station
Washington Union Station
BWI Rail Station
Flight Path Map
This map shows the direct air route between Gaithersburg and Ilchester. Straight-line distance: 24.53 mi (39.48 km).
#1 Gaithersburg
The second most populous city in Montgomery County, Maryland.
| Population | 67,741 |
| Coordinates | 39.1434400, -77.2013700 |
| Altitude | 153 |
| Country | United States |
#2 Ilchester
Ilchester is a place in Maryland, United States.
| Population | 0 |
| Coordinates | 39.2509400, -76.7646900 |
| Altitude | 33 |
| Country | United States |
End: Ilchester (-76.76469, 39.25094)
Estimated Travel Time
Distance: 60 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 14m |
| 40 mph (64.37 km/h) | 00h 55m |
| 50 mph (80.47 km/h) | 00h 44m |
| 60 mph (96.56 km/h) | 00h 37m |
| 70 mph (112.65 km/h) | 00h 31m |
| 80 mph (129 km/h) | 00h 27m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.24 | $5.55 | $11.11 |
| Mid-grade | $4.84 | $6.34 | $12.69 |
| Premium | $5.15 | $6.74 | $13.48 |
| Diesel | $6.36 | $8.33 | $16.67 |
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 · Oct 15, 2026