How can i tune any of my guitar strings to the c or f sound without a tuner?

Question

i need to know to practise a panic at the disco song

please help, the tuner i have only shows if it sounds like e a d g b e

Answer 1

buy another tuner, i forgot the name of it.......

just go to guitar center and ask for a tuner with f c

Answer 2

play a c or f on another guitar or a different octave and match it up