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Distance from Diamond Head to Keolu Hills

Driving Distance
28.1 mi 45.2 km
Flying Distance
9.4 mi 15.1 km

Route Information

The driving distance from Diamond Head, Hawaii to Keolu Hills, Hawaii is 28.1 mi (45.2 km)

The straight-line (air) distance is 9.4 mi (15.1 km)

The estimated flight time is 0 hr 1 min

The estimated travel time by road is 45 minutes

Traveling secondary roads, moderate in a northeast direction. Average speeds around 28 mph.

Location Details

Origin:

Diamond Head
Place Diamond Head
State/Province Hawaii
Country US
Latitude 21.261983
Longitude -157.805999
GPS 21.261983° N, 157.805999° W
Local Time 7:03 AM
Timezone Pacific/Honolulu

Destination:

Keolu Hills
Place Keolu Hills
State/Province Hawaii
Country US
Latitude 21.379444
Longitude -157.731667
GPS 21.379444° N, 157.731667° W
Local Time 7:03 AM
Timezone Pacific/Honolulu

Journey Summary

Traveling from Diamond Head, Hawaii to Keolu Hills, Hawaii covers 28.1 mi (45.2 km) in a northeast direction. This secondary roads, moderate route typically takes 45 minutes under normal conditions.

Drivers have 2 route options between these locations (18.7-28.1 miles / 30-45 km). The primary route shown here saves 9 minutes compared to alternatives.

The route features scenic views along the way. with average speeds around 28 mph (45 km/h).

Available Routes

I-H-3 E
28.1 mi 45 minutes
Shortest
HI-61
18.7 mi 36 minutes
Fastest

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.