It is not possible to know your height unless you provide it or perform a measurement. To find out how tall you are, you can measure yourself using a tape measure against a flat wall or doorframe, ideally with someone to help for accuracy. Stand straight with your eyes looking forward, and mark the height at the top of your head. Then, measure the distance from the floor to the mark in either centimeters or feet and inches. If you already know your height in feet and inches, you can convert it to centimeters by multiplying the total inches by 2.54 (since 1 inch = 2.54 cm). For example, if someone is 5 feet 4 inches tall, they multiply 5 feet by 12 to get 60 inches, add 4 inches to get 64 inches total, then multiply by 2.54 to get 162.56 cm.
To summarize, measuring is the only way to know exactly how tall you are. If you want help with how to measure or convert height units, that information can also be provided.
