How far is Grand Mound, WA from Renton, WA?
The driving distance from Grand Mound, WA to Renton, WA is about 70.8 miles (114 km), with a travel time of about 01h 20m by car.
- The straight-line flight distance is about 60.8 miles (97.9 km).
- For a round trip, plan for roughly 02h 40m 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 20m.
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.
City in the state of Washington
Route Weather Snapshot
Check the forecast at both ends before you head out.
Patchy Fog
Partly Cloudy
Driving Route Map
The map below follows the saved road route between Grand Mound and Renton.
Turn-by-Turn Driving Directions
Step-by-step road directions between Grand Mound and Renton.
-
1
Start on the route
89 m · 27 sec
-
2
Turn left
30 m · 9 sec
-
3
Turn right onto Old Highway 99 Southwest
1.3 km · 2 min · Old Highway 99 Southwest
-
4
Enter the roundabout and take exit 2 toward Large Round About
25 m · 5 sec · Old Highway 99 Southwest
-
5
Exit the rotary onto Old Highway 99 Southwest
633 ft · 17 sec · Old Highway 99 Southwest
-
6
Turn right onto US 12 West
1801 ft · 49 sec · US 12 West
-
7
Take the ramp left toward I 5 North
1010 ft · 25 sec
-
8
Merge slight left
44.9 mi · 54 min
-
9
Keep slight right
20.7 mi · 26 min
-
10
Take the exit slight right toward WA 518 West, I 405 North: Seattle-Tacoma International Airport, Bellevue
136 m · 11 sec
-
11
Keep slight right to continue on I 405 North: Renton, Bellevue
2062 ft · 50 sec
-
12
Merge slight left
1.3 mi · 2 min
-
13
Take the exit slight right toward WA 167 South: Renton, Auburn
2161 ft · 31 sec
-
14
Keep slight left to continue on Renton, Rainier Avenue South
1520 ft · 27 sec
-
15
Keep slight right to continue on WA 167 North: Renton, Rainier Avenue South
1005 ft · 43 sec
-
16
Merge slight left onto Valley Freeway
1102 ft · 23 sec · Valley Freeway
-
17
Continue on Rainier Avenue South
1.5 km · 2 min · Rainier Avenue South
-
18
Turn right
12 m · 3 sec
-
19
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Grand Mound and Renton.
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 North
Merge slight left
44.9 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.
Patchy Fog leaving Grand Mound and Partly Cloudy near Renton.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Grand Mound to Renton?
The road trip is about 70.8 miles (114 km) and usually takes 01h 20m 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?
DuPont is a useful midpoint, sitting about 35.4 miles from Grand Mound and 35.4 miles from Renton.
How much longer is the road route than the straight-line distance?
The direct path is about 60.8 miles (97.9 km), while the road route adds roughly 10 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 3:50 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $13.08 one way or $26.17 round trip. Estimated CO2 is about 22.2 kg one way.
What should you check before leaving?
Before you leave, expect Patchy Fog around Grand Mound and Partly Cloudy near Renton.
Stop Ideas Near DuPont
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Old City Hall Tacoma
City of Puyallup
Lacey Community Center
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to DuPont.
Centennial Station
Tacoma Dome Station
Centralia station
Tukwila station
Flight Path Map
This map shows the direct air route between Grand Mound and Renton. Straight-line distance: 60.82 mi (97.88 km).
#1 Grand Mound
City in Thurston County, Washington, United States
| Population | 2,981 |
| Coordinates | 46.7878800, -123.0112500 |
| Altitude | 51 |
| Country | United States |
#2 Renton
The second most populous city in King County, Washington.
| Population | 101,494 |
| Coordinates | 47.4828800, -122.2170700 |
| Altitude | 12 |
| Country | United States |
End: (-122.217044, 47.482897)
Estimated Travel Time
Distance: 114 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 21m |
| 40 mph (64.37 km/h) | 01h 46m |
| 50 mph (80.47 km/h) | 01h 25m |
| 60 mph (96.56 km/h) | 01h 10m |
| 70 mph (112.65 km/h) | 01h 00m |
| 80 mph (129 km/h) | 00h 53m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $13.08 | $26.17 |
| Mid-grade | $5.57 | $13.92 | $27.84 |
| Premium | $5.77 | $14.43 | $28.86 |
| Diesel | $5.47 | $13.67 | $27.33 |
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 30, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.