How far is Cosmopolis, WA from Kent, WA?
The driving distance from Cosmopolis, WA to Kent, WA is about 96.6 miles (155.5 km), with a travel time of about 01h 45m by car.
- The straight-line flight distance is about 78 miles (125.6 km).
- For a round trip, plan for roughly 03h 30m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM PDT.
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 45m.
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.
The capital of Washington state.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Light Rain Likely
Light Rain Likely
Driving Route Map
The map below follows the saved road route between Cosmopolis and Kent.
Turn-by-Turn Driving Directions
Step-by-step road directions between Cosmopolis and Kent.
-
1
Start on 3rd Street
7 m · 3 sec · 3rd Street
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2
Turn right onto F Street
655 ft · 28 sec · F Street
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3
Turn right onto 1st Street
4.1 mi · 7 min · 1st Street
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4
Turn left onto State Route 107
7 mi · 12 min · State Route 107
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5
Continue on South Main Street
1.3 km · 1 min · South Main Street
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6
Take the ramp right
1923 ft · 53 sec
-
7
Merge slight left onto Olympic Highway
10.1 mi · 13 min · Olympic Highway
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8
Continue straight
21.1 mi · 26 min
-
9
Merge slight left
5.4 mi · 7 min
-
10
Keep slight left
2818 ft · 53 sec
-
11
Merge slight left
28.8 mi · 36 min
-
12
Keep slight right
8.2 mi · 10 min
-
13
Take the exit slight right toward WA 18 East: Auburn, Muckleshoot Reservation
2644 ft · 1 min
-
14
Merge slight left onto State Route 18
2.4 mi · 3 min · State Route 18
-
15
Take the exit slight right toward WA 167 North: Kent, Renton
988 ft · 24 sec
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16
Keep slight right to continue on WA 167 North: Kent, Renton
2850 ft · 1 min
-
17
Merge slight left onto Valley Freeway
4.8 mi · 6 min · Valley Freeway
-
18
Take the exit slight right toward WA 516: Des Moines, Willis Street
1449 ft · 45 sec
-
19
Turn right onto West Willis Street
1314 ft · 30 sec · West Willis Street
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20
Enter the roundabout and take exit 3 toward 4th Avenue South
73 m · 5 sec · 4th Avenue South
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21
Exit the roundabout onto 4th Avenue South
984 ft · 32 sec · 4th Avenue South
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22
Turn right onto West Gowe Street
643 ft · 25 sec · West Gowe Street
-
23
Turn left onto 2nd Avenue South
3 m · 1 sec · 2nd Avenue South
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24
Arrive at your destination
0 m · 1 sec · 2nd Avenue South
Car Route Details
A richer read on the saved driving route between Cosmopolis and Kent.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Olympic Highway
Merge slight left
28.8 mi · 00h 36m
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.
Light Rain Likely leaving Cosmopolis and Light Rain Likely near Kent.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Cosmopolis to Kent?
The road trip is about 96.6 miles (155.5 km) and usually takes 01h 45m 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?
Olympia is a useful midpoint, sitting about 47.8 miles from Cosmopolis and 48.8 miles from Kent.
How much longer is the road route than the straight-line distance?
The direct path is about 78 miles (125.6 km), while the road route adds roughly 18.6 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 PDT. If you want a more comfortable same-day return, try to leave by 3:00 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $17.84 one way or $35.69 round trip. Estimated CO2 is about 30.3 kg one way.
What should you check before leaving?
Before you leave, expect Light Rain Likely around Cosmopolis and Light Rain Likely near Kent.
Stop Ideas Near Olympia
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City of Lacey - City Hall Parking
Olympia Urban Forestry
Olympia City Hall
Lacey Community Center
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Olympia.
Centennial Station
Centralia station
Tacoma Dome Station
Tukwila station
Flight Path Map
This map shows the direct air route between Cosmopolis and Kent. Straight-line distance: 78.04 mi (125.59 km).
#1 Cosmopolis
City in Grays Harbor County, Washington, United States
| Population | 1,680 |
| Coordinates | 46.9553700, -123.7737800 |
| Altitude | 8 |
| Country | United States |
#2 Kent
The fourth most populous city in King County, Washington.
| Population | 130,676 |
| Coordinates | 47.3809300, -122.2348400 |
| Altitude | 13 |
| Country | United States |
End: West Gowe Street (-122.234827, 47.380901)
Estimated Travel Time
Distance: 156 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 13m |
| 40 mph (64.37 km/h) | 02h 24m |
| 50 mph (80.47 km/h) | 01h 55m |
| 60 mph (96.56 km/h) | 01h 36m |
| 70 mph (112.65 km/h) | 01h 22m |
| 80 mph (129 km/h) | 01h 12m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $17.84 | $35.69 |
| Mid-grade | $5.57 | $18.98 | $37.97 |
| Premium | $5.77 | $19.68 | $39.36 |
| Diesel | $5.47 | $18.64 | $37.28 |
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 Washington · 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.