The distance between nucleotides is 0.34 nm, or .34 x 10-9 m.
(6 x 109) x (.34 x 10-9 m.) = 2.04 m. of DNA per cell.
You have about 100 trillion (1014) cells (chapter 13).
If all the DNA in your cells were uncoiled and lined up end-to-end, their total length is (1014) x 2 m. = 200 trillion m. = 200 billion km.
The diatance from Earth to the Sun is about 150 million km, or 300 million km round trip.
You have enough DNA to take 600 round trips to the Sun.