@Vivi_knotz try it out 😄 make a daisy chain bracelet as a test with chains that are 7 knots long. Make it long enough so it fits a small wrist. If it fits a small wrist, it will also fit a big wrist, but if you make it too long, it will only fit a big wrist, but no small wrist.
On String Lengths - my wrists are about 14.5 cm (5.75 in). I tend to make my bracelets about 16 cm long (including the button but not the tie-off knot), 11 chains, each 6 knots long, with the top loop being 14 knots in total. For this, here are the lengths I use:
230 cm for the chain color (green) 140 cm for the petal color (white) 90 cm for the middle color (yellow)