Step 1
Use numerals for all measurements of weight and distance, regardless of the value of the number. If you write the number "7" in a formal paper, spell out "seven" because the number is less than 10. However, when "7" is a measurement, use the numeral and not the spelled-out word.
Step 2
Type a space followed by the unit of measure. For example, if you are writing a paper about the height of a chair, write, "The chair was 4 feet in height."
Step 3
Place a hyphen in between the number and unit of measure if the measurement is modifying an object. For example, if your sentence is formatted, "The [measurement] [object]...", write "The 4-foot chair..." with a hyphen.