How far is Waialua, HI from Kapa‘a, HI?

The estimated driving distance from Waialua, HI to Kapa‘a, HI is about 222 miles (357.2 km), with a travel time of about 03h 53m by car.

  • This page is using an estimated road distance while the full route geometry is refreshed.
  • The straight-line flight distance is about 177.6 miles (285.8 km).
  • For a round trip, plan for roughly 07h 46m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 8:00 AM HST.
Road route is being refreshed. This page currently uses an estimated driving distance until a routing provider returns the full road geometry.
Trip Tools

Reverse, save, or send this route

This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.

Reverse Route
Quick Snapshot
Road
221.98 mi
03h 53m · estimated
Flight
177.58 mi
285.79 km direct

This drive is better planned with a longer stop or an overnight stay.

Learn Distance

Choose another destination from Waialua.

Flight Distance

Direct air line
177.58 mi
Kilometers
285.79 km
Flight Time
00h 21m

Driving Distance

Estimated road route
221.98 mi
Estimated
Kilometers
357.24 km
Drive Time
03h 53m

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 03h 53m.

Arrival Snapshot
Arrive in Kapa‘a
Sun, Apr 19, 10:56 AM HST
Return by in Waialua
Sun, Apr 19, 2:49 PM HST
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Waialua
2026-04-19T07:02
Arrive Kapa‘a
Sun, Apr 19, 10:56 AM HST
Route Timing
03h 53m
One way by road
Best Departure Window
6:00 AM to 8:00 AM HST
Leave early for more breathing room
Arrive between
9:53 AM to 11:53 AM HST

An early departure helps you fit a real stop into the day without turning the return into a late-night drive.

Leave by
9:14 AM HST
Keeps a same-day return open with about 04h 00m at the destination.
Back in Waialua
9:00 PM HST
Early departure recommended

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
Hale‘iwa
HI

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

From Waialua
88.8 mi
01h 56m
To Kapa‘a
133.2 mi
01h 56m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
73°F
Overnight

Slight Chance Rain Showers

Starts
Sun, Apr 19 5:00 AM HST
Wind
3 mph N
Destination
82°F
Sunday

Chance Rain Showers

Starts
Sun, Apr 19 6:00 AM HST
Wind
6 mph E

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 Waialua and Kapa‘a.

Turn-by-turn directions will appear after the road route is refreshed. The current distance is an estimate.

Route Summary

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

Trip Read

A longer out-and-back drive

This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.

Drive Time
03h 53m
Long day trip
Same-Day Return
07h 46m
Round-trip wheel time
Road vs Air
+44.4 mi
177.6 mi direct line
Halfway Stop
Hale‘iwa
01h 56m from Waialua
Leave By
9:14 AM HST
Early departure recommended
Weather Watch

Slight Chance Rain Showers leaving Waialua and Chance 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 Waialua to Kapa‘a?

The road trip is about 222 miles (357.2 km) and usually takes 03h 53m in normal driving conditions.

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

This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.

What is the halfway point on this route?

Hale‘iwa is a useful midpoint, sitting about 88.8 miles from Waialua and 133.2 miles from Kapa‘a.

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

The direct path is about 177.6 miles (285.8 km), while the road route adds roughly 44.4 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 6:00 AM to 8:00 AM HST. If you want a more comfortable same-day return, try to leave by 9:14 AM HST.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $38.77 one way or $77.53 round trip. Estimated CO2 is about 69.6 kg one way.

What should you check before leaving?

Before you leave, expect Slight Chance Rain Showers around Waialua and Chance Rain Showers near Kapa‘a.

Flight Path Map

This map shows the direct air route between Waialua and Kapa‘a. Straight-line distance: 177.58 mi (285.79 km).

Photo coming soon

#1 Waialua

City in United States of America

Population3,751
Coordinates21.1002800, -156.7613900
Altitude32
CountryUnited States
Kapa‘a

#2 Kapa‘a

Unincorporated census-designated place (CDP) in Kauaʻi County, Hawaiʻi, United States

Population10,699
Coordinates22.0752100, -159.3189500
Altitude6
CountryUnited States
Start: Waialua (-156.76139, 21.10028)
End: Kapa‘a (-159.31895, 22.07521)

Estimated Travel Time

Distance: 357 km by road

SpeedTime
30 mph (48.3 km/h)07h 23m
40 mph (64.37 km/h)05h 32m
50 mph (80.47 km/h)04h 26m
60 mph (96.56 km/h)03h 41m
70 mph (112.65 km/h)03h 10m
80 mph (129 km/h)02h 46m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
7.83 gal
29.65 L · about $38.77
Round trip
$77.53
15.66 gal · 59.3 L
Estimated CO2
69.6 kg one way
Round trip: 139.2 kg / 307 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $4.95 $38.77 $77.53
Mid-grade $5.34 $41.80 $83.59
Premium $5.57 $43.58 $87.16
Diesel $6.37 $49.85 $99.69

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 · Apr 19, 2026

There is no time difference between Waialua and Kapa‘a. The current time is 07:02:48.

Distance to Other Cities

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