What Was the Tallest Roller Coaster in the World in 2018
In 2018, the tallest roller coaster in the world was Kingda Ka, located at Six Flags Great Adventure in Jackson, New Jersey, USA. It is a strata coaster with a height of 456 feet (139 meters) and is recognized as the tallest coaster in operation globally. The ride is built and operated by Intamin, a Swiss manufacturer specializing in large-scale amusement rides and roller coasters.
Kingda Ka opened on May 21, 2005, and remained the tallest coaster in the world through 2018 and beyond. It uses a hydraulic launch system to accelerate riders to a top speed of 128 mph (206 km/h) in seconds. The coaster features a single train with four riders per row and is designed primarily for height and acceleration rather than extended duration.
Key Facts and Specifications of Kingda Ka
Kingda Ka has a drop height of 456 feet (139 meters), making it the tallest coaster structure ever built for public operation. The ride duration is approximately 28 seconds from launch to brake run, with a track length of roughly 3,118 feet (950 meters). Its acceleration is driven by a hydraulic launch mechanism that delivers intense thrust in a very short distance.
The coaster is often compared with other high-speed rides such as Top Thrill Dragster, also at Six Flags Great Adventure, which was similar in height but closed in 2021 for modifications. Kingda Ka remains in continuous operation and is a major attraction for coaster enthusiasts seeking extreme height and speed records. For additional context on amusement ride engineering, see the relevant page on Intamin's official site Intamin official ride portfolio.
Industry Context and Roller Coaster Rankings
As of 2018, the global coaster ranking by height placed Kingda Ka at the top, followed by other strata and giga coasters such as Top Thrill Dragster (420 feet) and Superman: Escape from Krypton (300 feet). These rankings are based on structural height, not on inversions, duration, or rider capacity. The industry uses standardized measurements from organizations such as the American Coaster Enthusiasts and international databases to track records.
Roller coaster design and construction involve significant capital investment, engineering firms, and regulatory approvals from local authorities and safety bodies. Major manufacturers such as Intamin, Bolliger & Mabillard, and Mack Rides compete on metrics including height, speed, and innovation. For broader industry data and financial analysis on theme park infrastructure, see the relevant report from Forbes Forbes theme park industry overview.