How far is Waianae, HI from Waipahu, HI?

The driving distance from Waianae, HI to Waipahu, HI is about 18.3 miles (29.5 km), with a travel time of about 00h 32m by car.

  • The straight-line flight distance is about 11.9 miles (19.1 km).
  • For a round trip, plan for roughly 01h 04m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 7:00 AM to 7:00 PM HST.
Trip Tools

Reverse, save, or send this route

This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.

Reverse Route
Quick Snapshot
Road
18.31 mi
00h 32m
Flight
11.89 mi
19.13 km direct

This is an easy same-day return drive.

Learn Distance

Choose another destination from Waianae.

Flight Distance

Direct air line
11.89 mi
Kilometers
19.13 km
Flight Time
00h 01m

Driving Distance

Road route
18.31 mi
Kilometers
29.47 km
Drive Time
00h 32m

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 00h 32m.

Arrival Snapshot
Arrive in Waipahu
Tue, May 12, 12:12 PM HST
Return by in Waianae
Tue, May 12, 12:44 PM HST
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Waianae
2026-05-12T11:40
Arrive Waipahu
Tue, May 12, 12:12 PM HST
Route Timing
00h 32m
One way by road
Best Departure Window
7:00 AM to 7:00 PM HST
Leave when it suits your day
Arrive between
7:32 AM to 7:32 PM HST

This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.

Leave by
7:26 PM HST
Keeps a same-day return open with about 01h 30m at the destination.
Back in Waianae
10:00 PM HST
Flexible departure

This departure sits inside the recommended comfort window for the route.

Halfway Point

A useful midpoint for breaks, coffee, or meeting in the middle.

Mid-route stop
Makakilo City
HI

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

From Waianae
9.2 mi
00h 16m
To Waipahu
9.1 mi
00h 16m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
Waianae Weather
HI
Live fallback forecast
81°F
Tuesday
Using Mākaha as the closest live forecast in the Honolulu County weather hub.

Mostly Sunny then Isolated Rain Showers

Starts
Tue, May 12 6:00 AM HST
Wind
9 mph NE
Destination
84°F
Tuesday

Scattered Rain Showers then Mostly Sunny

Starts
Tue, May 12 6:00 AM HST
Wind
8 to 18 mph ENE

Driving Route Map

The map below follows the saved road route between Waianae and Waipahu.

Turn-by-Turn Driving Directions

Step-by-step road directions between Waianae and Waipahu.

  1. 1

    Start on Farrington Highway

    10.4 mi · 21 min · Farrington Highway

  2. 2

    Continue on Queen Liliʻuokalani Freeway

    6.9 mi · 9 min · Queen Liliʻuokalani Freeway

  3. 3

    Take the exit slight right toward Waikele, Waipahu

    1157 ft · 28 sec

  4. 4

    Keep slight right to continue on Waipahu, Hawaii's Plantation Village, Filipino Community Center

    47 m · 5 sec

  5. 5

    Turn straight onto Paiwa Street

    2251 ft · 50 sec · Paiwa Street

  6. 6

    Turn right onto Puko Street

    881 ft · 28 sec · Puko Street

  7. 7

    Turn right onto Managers Drive

    73 m · 11 sec · Managers Drive

  8. 8

    Turn left onto Malakeke Street

    620 ft · 17 sec · Malakeke Street

  9. 9

    Arrive at your destination

    0 m · 1 sec · Malakeke Street

Car Route Details

A richer read on the saved driving route between Waianae and Waipahu.

OSRM road route
Drive Character

Turn-heavy local drive

The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.

Directions
9 steps
4 turns on the saved route
Ramps & Exits
1
0 merges, 1 ramps or exits
Navigation Density
49.2 / 100 mi
Decision points by distance
Main Roads
Farrington Highway
10.4 mi · 57%
Queen Liliʻuokalani Freeway
6.94 mi · 38%
Paiwa Street
0.43 mi · 2%
Waikele
0.25 mi · 1%
Puko Street
0.17 mi · 1%
Malakeke Street
0.12 mi · 1%
Longest Stretch

Farrington Highway

Start on Farrington Highway

10.4 mi · 00h 21m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

A short regional drive

This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.

Drive Time
00h 32m
Quick drive
Same-Day Return
01h 04m
Round-trip wheel time
Road vs Air
+6.4 mi
11.9 mi direct line
Halfway Stop
Makakilo City
00h 16m from Waianae
Leave By
7:26 PM HST
Flexible departure
Weather Watch

Mostly Sunny then Isolated Rain Showers leaving Waianae and Scattered Rain Showers then Mostly Sunny near Waipahu.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Waianae to Waipahu?

The road trip is about 18.3 miles (29.5 km) and usually takes 00h 32m in normal driving conditions.

Is this a same-day trip or an overnight route?

This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.

What is the halfway point on this route?

Makakilo City is a useful midpoint, sitting about 9.2 miles from Waianae and 9.1 miles from Waipahu.

How much longer is the road route than the straight-line distance?

The direct path is about 11.9 miles (19.1 km), while the road route adds roughly 6.4 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 7:00 AM to 7:00 PM HST. If you want a more comfortable same-day return, try to leave by 7:26 PM HST.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $3.22 one way or $6.44 round trip. Estimated CO2 is about 5.8 kg one way.

What should you check before leaving?

Before you leave, expect Mostly Sunny then Isolated Rain Showers around Waianae and Scattered Rain Showers then Mostly Sunny near Waipahu.

Flight Path Map

This map shows the direct air route between Waianae and Waipahu. Straight-line distance: 11.89 mi (19.13 km).

Photo coming soon

#1 Waianae

Census designated place in Honolulu County, Hawaii, United States

Population13,177
Coordinates21.4378500, -158.1855500
Altitude5
CountryUnited States
Waipahu

#2 Waipahu

Census designated place in Honolulu County, Hawaii, United States

Population38,216
Coordinates21.3866700, -158.0091700
Altitude19
CountryUnited States
Start: Waianae (-158.18555, 21.43785)
End: Waipahu (-158.00917, 21.38667)

Estimated Travel Time

Distance: 29 km by road

SpeedTime
30 mph (48.3 km/h)00h 36m
40 mph (64.37 km/h)00h 27m
50 mph (80.47 km/h)00h 21m
60 mph (96.56 km/h)00h 18m
70 mph (112.65 km/h)00h 15m
80 mph (129 km/h)00h 13m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
0.65 gal
2.45 L · about $3.22
Round trip
$6.44
1.3 gal · 4.9 L
Estimated CO2
5.8 kg one way
Round trip: 11.6 kg / 26 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $4.95 $3.22 $6.44
Mid-grade $5.34 $3.47 $6.94
Premium $5.57 $3.62 $7.24
Diesel $6.37 $4.14 $8.28

Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.

Prices in Hawaii · May 12, 2026

There is no time difference between Waianae and Waipahu. The current time is 11:40:04.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.