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Trip from Waianae, HI to Kahuku, HI

Data updated 0 seconds ago

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

Loading...

station data

Best Time to Leave

Save up to 20 min
4 AM
1h 24m ★
6 AM
1h 31m
8 AM
1h 44m
10 AM
1h 35m
12 PM
1h 34m
3 PM
1h 36m
5 PM
1h 44m
8 PM
1h 26m

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

census designated place in Honolulu County, Hawaii, United States

Waianae, HI

Wikimedia Commons

census-designated place in Honolulu County, Hawaii, United States of America

Kahuku, HI

Wikimedia Commons

Trip Overview

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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Drive Character

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.

Expect a mix of faster highway mileage and slower local approaches near the beginning or end.
There are about 10 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Kamehameha Highway is the longest continuous segment at about 22 miles.

How Hard Is This Drive?

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.

Route Complexity 3/10

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.

Critical Maneuvers

5 of 6 key points

These are the spots where you need to pay the most attention. Preview them before you drive.

4
0 mi into trip | ~0m in | HI 93 / Farrington Highway

Depart onto HI 93 / Farrington Highway

Lane positioning matters here

Use the left lane.
8
18.6 mi into trip | ~31m in

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

Use the slight left lane. Exit 8B Toward I H2 North: Miliani, Wahiawa
5
19.4 mi into trip | ~32m in | I H2 / Veteran's Memorial Freeway

Merge onto I H2 / Veteran's Memorial Freeway

Merge point - match speed before joining. Lane positioning matters here

Use the straight / right lanes.
7
26.4 mi into trip | ~41m in

Take the exit toward Wahiawa

Exit ramp - move to the correct lane early. Lane positioning matters here

Use the slight right lane. Exit 8 Toward Wahiawa
3
35.2 mi into trip | ~59m in | HI 83 / Joseph Leong Highway

Turn straight onto HI 83 / Joseph Leong Highway

Lane positioning matters here

Use the straight lane.

Towns Mentioned on Route Signs

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

18.6 mi in | ~31m

Wahiawa

18.6 mi in | ~31m

Main Roads

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
Longest stretch: Kamehameha Highway — 22 mi, about 43m

Turn-by-Turn Driving Directions

Step-by-step road directions between Waianae, HI and Kahuku, HI.

1

Start on HI 93

10 mi · 21 min · Farrington Highway
Use the left lane.
2

Continue on I H1

8.3 mi · 10 min · Queen Liliʻuokalani Freeway
Use the straight / slight right lanes.
3

Take the exit

0.8 mi · 1 min
Exit 8B Toward I H2 North: Miliani, Wahiawa Use the slight left lane.
4

Merge onto I H2

7.1 mi · 9 min · Veteran's Memorial Freeway
Use the straight / right lanes.
5

Take the exit

0.3 mi · 53 sec
Exit 8 Toward Wahiawa Use the slight right lane.
6

Continue on HI 80

8.5 mi · 16 min · Kamehameha Highway
Use the straight lane.
7

Turn straight onto HI 83

1.9 mi · 3 min · Joseph Leong Highway
Use the straight lane.
8

Continue on HI 83

14 mi · 27 min · Kamehameha Highway
Use the straight lane.
9

Turn left

441 ft · 32 sec
10

Arrive at destination

Trip Plan

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.

You can normally do this drive in one day.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 25.4 miles from Waianae, HI, or about 40m into the drive.
The longest continuous stretch on this route runs about 22 miles.

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.

Before You Leave

+

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.

Your first comfortable stop window is around 80 miles from Waianae, HI.
This route can stay practical as a one-day drive if traffic stays reasonable.
You may only need one short stretch stop if conditions stay smooth.
The longest stretch is on Kamehameha Highway for about 22 miles.

Where to Stop

Rest stops, refuel points, and overnight suggestions along this route.

Halfway Point

Midpoint

About 25.4 mi from Waianae, HI · 40m into the drive

Downtown Wahiawā, HI, HI

Mid-route town

Meal stop

Wahiawā, HI

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.

Pacing Suggestions

Lā‘ie, HI

Fuel and coffee

A short stop after about 50.7 miles helps settle the day before fatigue starts building.

Mililani Town, HI

Meal break

The midpoint is around 25.4 miles from Waianae, HI, which is a good place for a longer meal and fuel stop.

Arriving in Kahuku, HI

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.

Fuel & Cost

Regular Gas

$10.99 one way

$21.98 round trip

$5.51/gal 25.4 MPG avg 18 kg CO2
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.

Travel Intel

Current conditions at both ends of the drive.

Forecast data refreshed 5 days ago

Origin

Waianae, HI

Afternoon in Waianae on Tuesday

Local time

1:43 PM

HST

Current temp

--

Unavailable

Destination

Kahuku, HI

Afternoon in Kahuku on Tuesday

Local time

1:43 PM

HST

Current temp

66°F

Unavailable

Live forecast

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

Same local time

Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.

Road read

1h 30m on the road

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.

Frequently Asked Questions

The drive from Waianae, HI to Kahuku, HI covers 50.7 miles and takes about 1h 30m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Kamehameha Highway, Farrington Highway, Queen Liliʻuokalani Freeway. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 25.4 miles from Waianae, HI. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $10.99 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.
This is a straightforward 1h 30m drive. You will face about 6 decision points, but nothing that requires special attention if you follow navigation.
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.
Between Waianae, HI and Kahuku, HI, road signs point toward I H2 North: Miliani and Wahiawa.

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Explore More

Return Trip

Kahuku, HI to Waianae, HI

Plan the drive back the other way.

50.8 mi 1h 30m

Explore more options from Waianae, HI or browse trips ending in Kahuku, HI.

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