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Rating Newest Oldest. Best Answer: type: 175 cm in feet into Google.com and you get: 175 centimeters = 5.74146982 feet If you want a height in x-feet y-inches, then to the nearest quarter of an inch, you are: 5 feet 8.75 inches. Source(s): sfe.
1 So, if your riser is 7 inches (17.8 cm) tall, your tread should be anywhere from 9 to 11 inches (23 to 28 cm) long. 2  This makes the treads long enough to comfortably fit the average foot on and high enough to make stepping easy. The rule of thumb for treads and risers is that the sum of each should equal between 16 and 18 inches (40 and 45 cm). 2  So, if your riser is 7 inches (17.8 cm) tall, your tread should be anywhere from 9 to 11 inches (23 to 28 cm) long.