The road measures 40.45 miles long and would take a car obeying speed limits 1 hours and 0 minutes to travel its length.
The A78 is a A Road and is located in the Zone 7 Highways Region.
This is a true long-distance route, journeying through numerous towns like GREENOCK, Inverkip, WEMYSS BAY, SKELMORLIE, Meigle, St. Phillans, LARGS, Fairlie, WEST KILBRIDE, Seamill, ARDROSSAN, SALTCOATS, STEVENSTON, KILWINNING, IRVINE, North Newmoor, North Newmoor Industrial Estate, South Newmoor Industrial Estate, Meadowhead Industrial Estate, Auchengate, TROON, Loans, and Monkton.
The road connects Renfrewshire and Ayrshire and Arran.