How far is Mililani Town, HI from Kapa‘a, HI?
The estimated driving distance from Mililani Town, HI to Kapa‘a, HI is about 117.7 miles (189.4 km), with a travel time of about 02h 26m by car.
- This page is using an estimated road distance while the full route geometry is refreshed.
- The straight-line flight distance is about 94.1 miles (151.5 km).
- For a round trip, plan for roughly 04h 53m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM HST.
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 02h 26m.
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.
Census-designated place in Honolulu County, Hawaii, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Isolated Rain Showers then Mostly Sunny
Scattered Rain Showers
Driving Route Map
Road route is being refreshed. This page currently uses an estimated driving distance.
Turn-by-Turn Driving Directions
Step-by-step road directions between Mililani Town and Kapa‘a.
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.
Isolated Rain Showers then Mostly Sunny leaving Mililani Town and Scattered Rain Showers near Kapa‘a.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Mililani Town to Kapa‘a?
The road trip is about 117.7 miles (189.4 km) and usually takes 02h 26m 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?
Mokulēia is a useful midpoint, sitting about 47.1 miles from Mililani Town and 70.6 miles from Kapa‘a.
How much longer is the road route than the straight-line distance?
The direct path is about 94.1 miles (151.5 km), while the road route adds roughly 23.6 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 HST. If you want a more comfortable same-day return, try to leave by 1:36 PM HST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $20.55 one way or $41.09 round trip. Estimated CO2 is about 36.9 kg one way.
What should you check before leaving?
Before you leave, expect Isolated Rain Showers then Mostly Sunny around Mililani Town and Scattered Rain Showers near Kapa‘a.
Flight Path Map
This map shows the direct air route between Mililani Town and Kapa‘a. Straight-line distance: 94.15 mi (151.52 km).
#1 Mililani Town
Census-designated place in Honolulu County, Hawaii, United States of America
| Population | 27,629 |
| Coordinates | 21.4504000, -158.0150300 |
| Altitude | 207 |
| Country | United States |
#2 Kapa‘a
Unincorporated census-designated place (CDP) in Kauaʻi County, Hawaiʻi, United States
| Population | 10,699 |
| Coordinates | 22.0752100, -159.3189500 |
| Altitude | 6 |
| Country | United States |
End: Kapa‘a (-159.31895, 22.07521)
Estimated Travel Time
Distance: 189 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 55m |
| 40 mph (64.37 km/h) | 02h 56m |
| 50 mph (80.47 km/h) | 02h 21m |
| 60 mph (96.56 km/h) | 01h 57m |
| 70 mph (112.65 km/h) | 01h 40m |
| 80 mph (129 km/h) | 01h 28m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.95 | $20.55 | $41.09 |
| Mid-grade | $5.34 | $22.15 | $44.31 |
| Premium | $5.57 | $23.10 | $46.20 |
| Diesel | $6.37 | $26.42 | $52.84 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
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