Use the height symbol: `ft` and `in`
Type feet and inches with an apostrophe and quotation mark: `5’8″`
Type height in centimeters: `170 cm`
Type height in meters: `1.70 m`
Type height in plain text: `5 feet 8 inches`
Use a hyphen only if required by a form: `5-8`
Match the format requested by the website or document
Keep units consistent throughout the text