I usually say "I don't know" but lately people are not willing to take that! I had a friend keep asking (like I was going to be able to pull a number out of a hat!). I finally said it depends...(# of blocks, size of quilt, am I quilting it? , etc). He STILL was questioning me! I asked him how long it took to drive? well, he said, it depends on where I am going. EXACTLY! I am hoping that answer will stand me in good stead!