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Distance from Carnegie to Allegheny County

Driving Distance
21.6 mi 34.8 km
Flying Distance
4.7 mi 7.5 km

Route Information

The driving distance from Carnegie, Pennsylvania to Allegheny County, Pennsylvania is 21.6 mi (34.8 km)

The straight-line (air) distance is 4.7 mi (7.5 km)

The estimated flight time is 0 hr 1 min

The estimated travel time by road is 27 minutes

Traveling secondary roads, moderate in a northeast direction. Average speeds around 35 mph.

Location Details

Origin:

Carnegie
Place Carnegie
State/Province Pennsylvania
Country US
Latitude 40.40868
Longitude -80.083389
GPS 40.40868° N, 80.083389° W
Local Time 1:09 AM
Timezone America/New_York

Destination:

Allegheny County
Place Allegheny County
State/Province Pennsylvania
Country US
Latitude 40.445081
Longitude -80.008775
GPS 40.445081° N, 80.008775° W
Local Time 1:09 AM
Timezone America/New_York

Journey Summary

Traveling from Carnegie, Pennsylvania to Allegheny County, Pennsylvania covers 21.6 mi (34.8 km) in a northeast direction. This secondary roads, moderate route typically takes 27 minutes under normal conditions.

Drivers have 3 route options between these locations (20.3-24.4 miles / 33-39 km).

The route features scenic views along the way. with average speeds around 35 mph (56 km/h).

Available Routes

I-79 N
21.6 mi 27 minutes
Shortest Fastest
I-279
24.4 mi 30 minutes
McKnight Rd
20.3 mi 33 minutes

How is the distance calculated?

Driving distances are based on actual road data. We use advanced routing algorithms that consider traffic, tolls, highways, and local streets. For air distances (as the crow flies), we use the Vincenty formula. It's a precise method that accounts for the Earth's shape and provides accuracy up to 0.5 mm.

When multiple route options exist, we display both the shortest and fastest paths. Travel times are estimated based on typical speeds for each road type, though actual times may vary with traffic and weather conditions. All distances are shown in both miles and kilometers for convenience.