How Long Will it Take?
The length of time that is required to complete a CFI rating depends largely on your ability, motivation to learn and your proficiency with the English language. Assuming the pilot already has a Commercial Pilot License; it usually takes about three months to complete the CFI rating course if a reasonably full schedule is maintained.
NOTE: The CFI training course requires that the student place much more effort in the ground study portion of the training. For this reason, the total time will vary based on the individual home study effort provided by the student.