Origin
Waianae, HI
Afternoon in Waianae on Tuesday
Local time
1:43 PM
HST
Current temp
--
Unavailable
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Drive Time
1h 30m
Distance
50.7 mi
82 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$11
one way
EV Charging
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station data
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Waianae, HI
Wikimedia Commons
Kahuku, HI
Wikimedia Commons
Spanning 50.7 miles from Waianae to Kahuku, this drive typically takes about 1 hour and 30 minutes. It is a straightforward route that works perfectly as a one-day excursion, meaning you won't need to worry about booking overnight accommodations. You can expect to spend approximately $11 on fuel for the journey, making it a relatively affordable trip across the island. The route utilizes a combination of the Farrington Highway, Queen Liliʻuokalani Freeway, and Kamehameha Highway to navigate from the western coast to the northern tip. Because you are traveling between these two regions, the road offers a functional way to traverse different parts of Hawaii without a lengthy time commitment. It is an ideal choice if you are looking for a practical, efficient way to connect your coastal destinations.
Trip Pace
Same-day drive is realistic
A same-day return is realistic if you keep stops short.
Break Rhythm
0 planned breaks
A short stop every 2 to 3 hours is enough for this drive.
Midpoint
25.4 miles from Waianae, HI
A natural place for your longest stop of the day , about 40m into the drive .
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This 50.7-mile journey features a mixed driving profile, balancing highway speed with local road navigation. Only about 30% of your time behind the wheel will be spent on major highways, so prepare for a varied pace as you transition between road types. You will encounter your longest stretch of continuous driving while on the Kamehameha Highway, which spans 22 miles. This segment provides a nice rhythm, allowing you to settle in before the road conditions shift again. Expect the environment to change as you move through these different thoroughfares, requiring you to stay alert to the shifting traffic patterns throughout your hour-and-a-half transit.
This route mixes highway mileage with some local-road sections near the start or finish. There are only a few real navigation decisions along the way. The trickiest moment comes early in the drive near HI 93 / Farrington Highway.
Easy - simple navigation with a manageable amount of wheel time
This is a straightforward 1h 30m drive. You will face about 6 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: near the start (HI 93 / Farrington Highway): Lane positioning matters here; at 18.6 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one; at 19.4 miles (I H2 / Veteran's Memorial Freeway): Merge point - match speed before joining. Lane positioning matters here.
These are the spots where you need to pay the most attention. Preview them before you drive.
Depart onto HI 93 / Farrington Highway
Lane positioning matters here
Take the exit toward I H2 North: Miliani, Wahiawa
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Merge onto I H2 / Veteran's Memorial Freeway
Merge point - match speed before joining. Lane positioning matters here
Take the exit toward Wahiawa
Exit ramp - move to the correct lane early. Lane positioning matters here
Turn straight onto HI 83 / Joseph Leong Highway
Lane positioning matters here
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Waianae, HI and Kahuku, HI, road signs point toward I H2 North: Miliani and Wahiawa.
I H2 North: Miliani
Wahiawa
| Road | Distance | Duration |
|---|---|---|
| Kamehameha Highway | 22 mi | 43m |
| Farrington Highway | 10.4 mi | 21m |
| Queen Liliʻuokalani Freeway | 8.3 mi | 10m |
| Veteran's Memorial Freeway | 7.1 mi | 9m |
| Joseph Leong Highway | 1.9 mi | 3m |
Step-by-step road directions between Waianae, HI and Kahuku, HI.
Start on HI 93
Continue on I H1
Take the exit
Merge onto I H2
Take the exit
Continue on HI 80
Turn straight onto HI 83
Continue on HI 83
Turn left
Arrive at destination
Since this is a relatively short 1 hour and 30 minute drive, you have plenty of flexibility to plan your departure time to avoid peak traffic. Budgeting $11 for fuel is a safe estimate, but it is always smart to top off your tank before leaving Waianae to ensure a smooth trip to Kahuku. Because there are no mandatory stops listed, you can easily pace the drive to suit your own schedule rather than rushing to reach a destination. Keep a close eye on the transitions between the Farrington Highway and the Kamehameha Highway, as the character of the road changes significantly at these junctures. Use the 22-mile stretch on Kamehameha Highway as your primary window for steady progress, but stay prepared for slower local segments as you approach your final destination.
Morning Departure
Leave by 9 AM and you'll arrive before lunch.
Evening Departure
Even a 4 PM departure gets you there before dark in summer.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 50.7 miles or 1h 30m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 25.4 miles or 40m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 1h 14m
Traffic, exits, and arrival timing usually matter more near Kahuku, HI than in the middle of the route.
Open the route before leaving Waianae, HI so your first major turns are already loaded.
Leave with enough water and a charging cable within reach, not packed away.
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Waianae, HI
This is one driving day of about 50.7 miles and 1h 30m.
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 25.4 mi from Waianae, HI · 40m into the drive
Mid-route town
Meal stop
25 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
A short stop after about 50.7 miles helps settle the day before fatigue starts building.
The midpoint is around 25.4 miles from Waianae, HI, which is a good place for a longer meal and fuel stop.
The final approach into Kahuku, HI usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.
Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Kahuku, HI.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Regular Gas
$10.99 one way
$21.98 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $5.79 | $11.56 | $23.11 |
| premium | $5.98 | $11.94 | $23.87 |
| diesel | $5.61 | $11.19 | $22.39 |
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$11
Meals
$25–$50
Total
$36–$61
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 17.7 kg one way. Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $5 in charging · 0 stops · 67% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 15.2 | 0 | $5.32 | $2.43 |
| Efficient EV | 12.7 | 0 | $4.44 | $2.03 |
| EV Truck/SUV | 20.3 | 0 | $7.10 | $3.24 |
Gas CO2
18 kg
EV CO2
6 kg (67% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Current conditions at both ends of the drive.
Origin
Afternoon in Waianae on Tuesday
Local time
1:43 PM
HST
Current temp
--
Unavailable
Destination
Afternoon in Kahuku on Tuesday
Local time
1:43 PM
HST
Current temp
66°F
Unavailable
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Road read
Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
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