Answer 5'11 is 1.80 meter or 180 centimers.
511 feet is approximately 155.76 meters.
511
The biggest recorded sinkhole is the Xiaozhai Tiankeng in China, which measures 662 meters (2,172 feet) wide, 511 meters (1,677 feet) long, and 320 meters (1,050 feet) deep. It is also known as the Xiaozhai Heavenly Pit.
118 meters = 387.139108 feet.
239 meters = 784.120735 feet.
600 feet = 182.88 meters.
138 meters = 452.755906 feet.
88 meters = 288.713911 feet.
115 feet = 35.052 meters.
13 feet = 3.9624 meters
500 feet = 152.4 meters
9,980 feet=3,041.904 meters