How far is Black Diamond, WA from Federal Way, WA?
The driving distance from Black Diamond, WA to Federal Way, WA is about 19.4 miles (31.2 km), with a travel time of about 00h 31m by car.
- The straight-line flight distance is about 14.5 miles (23.4 km).
- For a round trip, plan for roughly 01h 03m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM PDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 31m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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.
Census designated place
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Light Rain
Chance Light Rain
Driving Route Map
The map below follows the saved road route between Black Diamond and Federal Way.
Turn-by-Turn Driving Directions
Step-by-step road directions between Black Diamond and Federal Way.
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1
Start on Lawson Street
18 m · 4 sec · Lawson Street
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2
Turn right onto 3rd Avenue
86 m · 12 sec · 3rd Avenue
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3
Turn left onto Baker Street
877 ft · 34 sec · Baker Street
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4
At the end of the road, turn right onto Railroad Avenue
88 m · 10 sec · Railroad Avenue
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5
Continue on Morgan Street
2237 ft · 1 min · Morgan Street
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6
Turn left onto Cemetery Road
684 ft · 28 sec · Cemetery Road
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7
Turn left onto Roberts Drive
2423 ft · 1 min · Roberts Drive
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8
Continue on Southeast Auburn Black Diamond Road
134 m · 15 sec · Southeast Auburn Black Diamond Road
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9
Enter the roundabout and take exit 2 toward Southeast Auburn Black Diamond Road
43 m · 5 sec · Southeast Auburn Black Diamond Road
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10
Exit the roundabout onto Southeast Auburn Black Diamond Road
1192 ft · 41 sec · Southeast Auburn Black Diamond Road
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11
Enter the roundabout and take exit 2 toward Southeast Auburn Black Diamond Road
26 m · 3 sec · Southeast Auburn Black Diamond Road
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12
Exit the roundabout onto Southeast Auburn Black Diamond Road
3 mi · 5 min · Southeast Auburn Black Diamond Road
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13
Continue on 192nd Avenue Southeast
2206 ft · 44 sec · 192nd Avenue Southeast
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14
Continue on Southeast Auburn-Black Diamond Road
2623 ft · 54 sec · Southeast Auburn-Black Diamond Road
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15
Continue on Southeast Auburn-Black Diamond Road
4.6 mi · 8 min · Southeast Auburn-Black Diamond Road
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16
Continue on Southeast Auburn Black Diamond Road
2405 ft · 54 sec · Southeast Auburn Black Diamond Road
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17
Take the ramp left toward WA 18 West
1942 ft · 48 sec
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18
Merge slight left onto State Route 18
2.6 mi · 3 min · State Route 18
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19
Take the exit slight right toward WA 167: Renton, Puyallup
1109 ft · 19 sec
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20
Keep slight left to continue on WA 167 South: Puyallup, West Valley Highway
1523 ft · 26 sec
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21
Keep slight left to continue on West Valley Highway
762 ft · 24 sec
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22
At the end of the road, turn left onto West Valley Highway North
736 ft · 20 sec · West Valley Highway North
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23
Turn right onto South Peasley Canyon Road
1.2 km · 1 min · South Peasley Canyon Road
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24
Enter the roundabout and take exit 1 toward South Peasley Canyon Road
21 m · 2 sec · South Peasley Canyon Road
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25
Exit the roundabout onto South Peasley Canyon Road
1 mi · 2 min · South Peasley Canyon Road
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26
Continue on South 320th Street
1.4 mi · 3 min · South 320th Street
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27
Turn right onto Pacific Highway South
2617 ft · 55 sec · Pacific Highway South
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28
Turn right onto South 312th Street
48 m · 6 sec · South 312th Street
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29
Turn right
7 m · 2 sec
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30
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Black Diamond and Federal Way.
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.
Southeast Auburn-Black Diamond Road
Continue on Southeast Auburn-Black Diamond Road
4.62 mi · 00h 08m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Chance Light Rain leaving Black Diamond and Chance Light Rain near Federal Way.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Black Diamond to Federal Way?
The road trip is about 19.4 miles (31.2 km) and usually takes 00h 31m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Lea Hill is a useful midpoint, sitting about 9 miles from Black Diamond and 10.4 miles from Federal Way.
How much longer is the road route than the straight-line distance?
The direct path is about 14.5 miles (23.4 km), while the road route adds roughly 4.9 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 7:00 AM to 7:00 PM PDT. If you want a more comfortable same-day return, try to leave by 7:26 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $3.56 one way or $7.12 round trip. Estimated CO2 is about 6 kg one way.
What should you check before leaving?
Before you leave, expect Chance Light Rain around Black Diamond and Chance Light Rain near Federal Way.
Stop Ideas Near Lea Hill
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Old City Hall Tacoma
Tukwila Community Center
Auburn Building Permits
City of Normandy Park City Hall
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Lea Hill.
Tukwila station
Tacoma Dome Station
King Street Station
Seattle (Ferry - Pier 69), Washington
Flight Path Map
This map shows the direct air route between Black Diamond and Federal Way. Straight-line distance: 14.53 mi (23.38 km).
#1 Black Diamond
City in King County, Washington, United States
| Population | 5,403 |
| Coordinates | 47.3087100, -122.0031700 |
| Altitude | 199 |
| Country | United States |
#2 Federal Way
A city in King County, Washington.
| Population | 96,307 |
| Coordinates | 47.3223200, -122.3126200 |
| Altitude | 141 |
| Country | United States |
End: (-122.312612, 47.32232)
Estimated Travel Time
Distance: 31 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 38m |
| 40 mph (64.37 km/h) | 00h 29m |
| 50 mph (80.47 km/h) | 00h 23m |
| 60 mph (96.56 km/h) | 00h 19m |
| 70 mph (112.65 km/h) | 00h 16m |
| 80 mph (129 km/h) | 00h 14m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $3.56 | $7.12 |
| Mid-grade | $5.57 | $3.79 | $7.57 |
| Premium | $5.77 | $3.92 | $7.85 |
| Diesel | $5.47 | $3.72 | $7.44 |
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 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.