How far is Black Diamond, WA from Kent, WA?
Here are the driving distances between Black Diamond, WA and Kent, WA:
- Taking I-405 N and I-5 N, the most direct highway route, it is approximately 31 miles (50 km) from Black Diamond to Kent. This drive takes around 40 minutes in normal traffic.
- Driving on WA-169 N and WA-516 W through Maple Valley is slightly longer at 34 miles (55 km). This way takes around 45 minutes.
- Taking more backroad routes like Roberts Drive NW and WA-515 N adds a bit more distance, approximately 38 miles (61 km) and 50 minutes drive time.
- As the crow flies, the straight line distance between Black Diamond and Kent is about 22 miles (35 km).
So in summary, the typical driving distance by highways between Black Diamond and Kent is around 30-35 miles, equating to a 40-45 minute drive under normal conditions. The shortest direct distance is about 22 miles as the crow flies. Backroads add only 5-10 extra miles to the total trip.
Fastest route
The driving distance between Black Diamond, Washington and Kent, Washington is 15 miles (24 kilometers). The drive time is about 22 minutes.
Here are the steps for the most direct route:
- Head east on W Smith St.
- Turn left onto Canyon Dr.
- Continue onto SE 256th St.
- Continue onto SE Kent-Kangley Rd.
- Continue onto SE 272nd St.
- Turn right onto 152nd Ave SE.
- Continue onto Kent Black Diamond Rd SE.
If you want to meet halfway between Black Diamond and Kent, Washington, the exact coordinates of the halfway point of this route are 47.457236 and -122.114027, or 47º 27' 23.064" N, -122º 07' 04.372" W. This location is 7.5 miles away from Black Diamond and Kent and it would take approximately 11 minutes to reach the halfway point from both locations.
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 27m.
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.
City in Washington, United States
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 Kent.
Turn-by-Turn Driving Directions
Step-by-step road directions between Black Diamond and Kent.
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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
2963 ft · 1 min · 3rd Avenue
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3
Enter the roundabout and take exit 1 toward 3rd Avenue
18 m · 1 sec · 3rd Avenue
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4
Exit the roundabout onto 3rd Avenue
1185 ft · 30 sec · 3rd Avenue
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5
Enter the roundabout and take exit 1 toward 3rd Avenue
69 m · 11 sec · 3rd Avenue
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6
Exit the roundabout onto 3rd Avenue
1.1 km · 1 min · 3rd Avenue
-
7
Continue on Maple Valley Black Diamond Road Southeast
2 mi · 3 min · Maple Valley Black Diamond Road Southeast
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8
Enter the roundabout and take exit 1 toward Maple Valley Black Diamond Road Southeast
38 m · 3 sec · Maple Valley Black Diamond Road Southeast
-
9
Exit the roundabout onto Maple Valley Black Diamond Road Southeast
1749 ft · 47 sec · Maple Valley Black Diamond Road Southeast
-
10
Turn left onto Southeast Kent Kangley Road
3163 ft · 1 min · Southeast Kent Kangley Road
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11
Continue on Southeast 272nd Street
6.3 mi · 12 min · Southeast 272nd Street
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12
Continue on Southeast Kent-Kangley Road
858 ft · 16 sec · Southeast Kent-Kangley Road
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13
Continue on Southeast Kent Kangley Road
1.8 mi · 3 min · Southeast Kent Kangley Road
-
14
Continue on Southeast 256th Street
2213 ft · 56 sec · Southeast 256th Street
-
15
Continue on Canyon Drive
1.5 km · 2 min · Canyon Drive
-
16
Continue on East Smith Street
572 ft · 20 sec · East Smith Street
-
17
Turn left onto East Titus Street
1185 ft · 40 sec · East Titus Street
-
18
Continue on East Gowe Street
1650 ft · 56 sec · East Gowe Street
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19
Turn right onto 2nd Avenue South
3 m · 1 sec · 2nd Avenue South
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20
Arrive at your destination
0 m · 1 sec · 2nd Avenue South
Car Route Details
A richer read on the saved driving route between Black Diamond and Kent.
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 272nd Street
Continue on Southeast 272nd Street
6.25 mi · 00h 12m
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 Kent.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Black Diamond to Kent?
The road trip is about 15.2 miles (24.5 km) and usually takes 00h 27m 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?
Covington is a useful midpoint, sitting about 7.3 miles from Black Diamond and 7.9 miles from Kent.
How much longer is the road route than the straight-line distance?
The direct path is about 11.9 miles (19.2 km), while the road route adds roughly 3.3 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 7:36 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $2.83 one way or $5.65 round trip. Estimated CO2 is about 4.8 kg one way.
What should you check before leaving?
Before you leave, expect Chance Light Rain around Black Diamond and Chance Light Rain near Kent.
Stop Ideas Near Covington
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Tukwila Community Center
Auburn Building Permits
City of Covington
City Hall Saloon & Eatery
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Covington.
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 Kent. Straight-line distance: 11.94 mi (19.21 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 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: 25 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 30m |
| 40 mph (64.37 km/h) | 00h 22m |
| 50 mph (80.47 km/h) | 00h 18m |
| 60 mph (96.56 km/h) | 00h 15m |
| 70 mph (112.65 km/h) | 00h 13m |
| 80 mph (129 km/h) | 00h 11m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $2.83 | $5.65 |
| Mid-grade | $5.57 | $3.01 | $6.01 |
| Premium | $5.77 | $3.12 | $6.23 |
| Diesel | $5.47 | $2.95 | $5.90 |
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.