The height of "1" by itself is ambiguous without units. However, if "1" refers to common height units:

• 1 inch is approximately 2.54 centimeters.
• 1 foot equals 12 inches or 30.48 centimeters.
• 1 meter equals approximately 3.28 feet or 100 centimeters.

Please specify the unit for "1" (inch, foot, meter, etc.) for a precise height measurement conversion.