How far is Seattle, WA from Grand Mound, WA?
The driving distance from Seattle, WA to Grand Mound, WA is about 78.7 miles (126.7 km), with a travel time of about 01h 39m by car.
- The straight-line flight distance is about 64.9 miles (104.5 km).
- For a round trip, plan for roughly 03h 18m 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 39m.
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 most populous city in Pierce County, Washington.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Seattle and Grand Mound.
Turn-by-Turn Driving Directions
Step-by-step road directions between Seattle and Grand Mound.
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1
Start on the route
9 m · 8 sec
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2
Turn left onto Madison Street
62 m · 11 sec · Madison Street
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3
Turn right onto 4th Avenue
94 m · 15 sec · 4th Avenue
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4
Turn right onto Spring Street
647 ft · 26 sec · Spring Street
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5
Take the ramp right toward I 5 South: Portland
1151 ft · 28 sec
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6
Continue straight
3180 ft · 1 min
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7
Keep slight left to continue on I 90 East, I 5 South: Bellevue, Portland
45 m · 2 sec
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8
Keep slight right to continue on I 5 South: Tacoma, Portland
589 ft · 8 sec
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9
Keep slight left to continue on Airport Way
93 m · 4 sec
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10
Keep slight left to continue on I 5 South: Sea-Tac Airport
30.4 mi · 38 min
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11
Keep slight right
45.4 mi · 54 min
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12
Take the exit slight right toward US 12 West: Aberdeen, Tenino
2279 ft · 58 sec
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13
Turn right
1108 ft · 31 sec
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14
Turn left onto Old Highway 99 Southwest
631 ft · 14 sec · Old Highway 99 Southwest
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15
Enter the roundabout and take exit 2 toward Large Round About
25 m · 5 sec · Old Highway 99 Southwest
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16
Exit the rotary onto Old Highway 99 Southwest
1.3 km · 2 min · Old Highway 99 Southwest
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17
Turn left
30 m · 9 sec
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18
Turn right
89 m · 22 sec
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19
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Seattle and Grand Mound.
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 5 South
Keep slight right
45.4 mi · 00h 54m
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.
Mostly Sunny leaving Seattle and Mostly Sunny near Grand Mound.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Seattle to Grand Mound?
The road trip is about 78.7 miles (126.7 km) and usually takes 01h 39m 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?
Lakewood is a useful midpoint, sitting about 39.3 miles from Seattle and 39.4 miles from Grand Mound.
How much longer is the road route than the straight-line distance?
The direct path is about 64.9 miles (104.5 km), while the road route adds roughly 13.8 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 3:12 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $14.55 one way or $29.10 round trip. Estimated CO2 is about 24.7 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Seattle and Mostly Sunny near Grand Mound.
Stop Ideas Near Lakewood
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Old City Hall Tacoma
City of Puyallup
Tacoma City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Lakewood.
Tacoma Dome Station
Centennial Station
Tukwila station
King Street Station
Flight Path Map
This map shows the direct air route between Seattle and Grand Mound. Straight-line distance: 64.91 mi (104.47 km).
#1 Seattle
The eighteenth most populous city in the United States and the center of the Seattle metropolitan area.
| Population | 769,714 |
| Coordinates | 47.6062100, -122.3320700 |
| Altitude | 56 |
| Country | United States |
#2 Grand Mound
City in Thurston County, Washington, United States
| Population | 2,981 |
| Coordinates | 46.7878800, -123.0112500 |
| Altitude | 51 |
| Country | United States |
End: Grand Mound (-123.01125, 46.78788)
Estimated Travel Time
Distance: 127 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 37m |
| 40 mph (64.37 km/h) | 01h 58m |
| 50 mph (80.47 km/h) | 01h 34m |
| 60 mph (96.56 km/h) | 01h 18m |
| 70 mph (112.65 km/h) | 01h 07m |
| 80 mph (129 km/h) | 00h 58m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $14.55 | $29.10 |
| Mid-grade | $5.57 | $15.48 | $30.95 |
| Premium | $5.77 | $16.04 | $32.09 |
| Diesel | $5.47 | $15.20 | $30.40 |
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.