Question: 50 meters is how deep?
Answer: 50 meters is equal to 165 feet or 5 ATM. 100 meters is equal to 330 feet or 10 ATM. 200 meters is equal to 660 feet or 20 ATM. Diver watches are ISO regulated, and labeled as 150 to 200 meters, which is equal to a water depth of 500 to 600 feet.