Route 540 (Route 540) is a 3.9-mile-long (6.3 km) state highway that stretches from Route 50 in Eleele back to Route 50 in Kalaheo on the island of Kauai.

This section needs expansion. You can help by adding to it. (January 2014)

The road is mainly an alternative to Route 50 and for the first one mile (1.6 km), the Pacific Ocean is in view as the highway travels easterly. Route 540 then takes a sharp turn north at the Kauai Coffee plant, towards Kalaheo. Numerous agriculture fields surround the road.

The entire route is in Kauai County.

Location	mi	km	Destinations	Notes
Eleele	0.0	0.0	Route 50 (Kaumualii Highway) – Port Allen, Waimea, Lihue	Western terminus
Kalaheo	3.9	6.3	Route 50 (Kaumualii Highway) – Waimea, Kalaheo, Lihue	Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

• Hawaii portal
• U.S. Roads portal

• Route Log for Hawaii Route 540